{ "snapshot_utc": "2026-10-13 06:13:19.647089", "timezone": "Asia/Shanghai (UTC+08:00)", "observation_cutoff_local": "2026-10-13T14:13:19.647089+08:00", "ongoing_homeworks": [ "HW5" ], "cohort_members": 42, "all_course_submissions": 3622, "all_homework_submissions": 3452, "window_submissions": 3359, "window_submitters": 39, "outside_window": 93, "partial_scores_all_homework": 416, "partial_scores_in_window": 400, "submissions_after_first_ac": 645, "peak_day": { "date": "2026-08-29", "submissions": 233, "contributors": 14 }, "calendar_policy": { "hours_per_bin": 4, "minimum_distinct_contributors": 5, "overlapping_windows": "Pooled homework events; no per-homework subcounts are released for overlapping bins", "suppressed_positive_cells": 118, "visible_positive_cells": 38 }, "assignments": [ { "homework": "HW1", "assignment_id": 95, "start_local": "2026-08-26T15:00:00+08:00", "end_local": "2026-09-01T23:59:00+08:00", "observation_status": "complete", "observed_until_local": "2026-09-01T23:59:00+08:00", "problems": 8, "submissions": 673, "outside_window": 14, "all_attempts": { "n": 38, "min": 8, "q1": 9.25, "median": 12.5, "q3": 17.0, "max": 98 }, "through_first_ac": { "n": 38, "min": 8, "q1": 9.0, "median": 11.5, "q3": 14.75, "max": 93 }, "mode0_records": 39, "mode0_full_score_records": 37 }, { "homework": "HW2", "assignment_id": 120, "start_local": "2026-09-03T12:00:00+08:00", "end_local": "2026-09-08T23:59:00+08:00", "observation_status": "complete", "observed_until_local": "2026-09-08T23:59:00+08:00", "problems": 8, "submissions": 664, "outside_window": 35, "all_attempts": { "n": 38, "min": 3, "q1": 10.0, "median": 13.0, "q3": 17.75, "max": 62 }, "through_first_ac": { "n": 38, "min": 3, "q1": 9.0, "median": 12.5, "q3": 16.0, "max": 62 }, "mode0_records": 38, "mode0_full_score_records": 33 }, { "homework": "HW3", "assignment_id": 145, "start_local": "2026-09-11T11:00:00+08:00", "end_local": "2026-09-15T23:59:00+08:00", "observation_status": "complete", "observed_until_local": "2026-09-15T23:59:00+08:00", "problems": 7, "submissions": 764, "outside_window": 44, "all_attempts": { "n": 39, "min": 7, "q1": 9.5, "median": 14.0, "q3": 19.0, "max": 108 }, "through_first_ac": { "n": 39, "min": 7, "q1": 9.0, "median": 12.0, "q3": 17.5, "max": 47 }, "mode0_records": 39, "mode0_full_score_records": 37 }, { "homework": "HW4", "assignment_id": 178, "start_local": "2026-09-24T10:00:00+08:00", "end_local": "2026-10-02T23:59:00+08:00", "observation_status": "complete", "observed_until_local": "2026-10-02T23:59:00+08:00", "problems": 8, "submissions": 756, "outside_window": 0, "all_attempts": { "n": 38, "min": 8, "q1": 9.0, "median": 12.0, "q3": 20.0, "max": 141 }, "through_first_ac": { "n": 38, "min": 8, "q1": 9.0, "median": 12.0, "q3": 18.0, "max": 130 }, "mode0_records": 38, "mode0_full_score_records": 38 }, { "homework": "HW5", "assignment_id": 189, "start_local": "2026-09-30T15:45:00+08:00", "end_local": "2026-10-18T23:59:00+08:00", "observation_status": "ongoing", "observed_until_local": "2026-10-13T14:13:19.647089+08:00", "problems": 12, "submissions": 502, "outside_window": 0, "all_attempts": { "n": 23, "min": 1, "q1": 7.0, "median": 14.0, "q3": 19.0, "max": 209 }, "through_first_ac": { "n": 23, "min": 1, "q1": 7.0, "median": 13.0, "q3": 19.0, "max": 32 }, "mode0_records": 27, "mode0_full_score_records": 11 } ], "calendar": [ { "date": "2026-08-26", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-26", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-26", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-26", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-26", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-26", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-27", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-27", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-27", "hour": 8, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-27", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-27", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-27", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-28", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-28", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-28", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-28", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 57, "contributors": 9 }, { "date": "2026-08-28", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 25, "contributors": 6 }, { "date": "2026-08-28", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-29", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-29", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-29", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-29", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 153, "contributors": 12 }, { "date": "2026-08-29", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 57, "contributors": 8 }, { "date": "2026-08-29", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-30", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-30", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-30", "hour": 8, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-30", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-30", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 46, "contributors": 7 }, { "date": "2026-08-30", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 17, "contributors": 6 }, { "date": "2026-08-31", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-31", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-31", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-31", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-08-31", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-08-31", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 30, "contributors": 5 }, { "date": "2026-09-01", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-01", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-01", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-01", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-01", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 31, "contributors": 7 }, { "date": "2026-09-01", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW1" ], "homework": "HW1", "observation_status": "complete", "submissions": 46, "contributors": 7 }, { "date": "2026-09-02", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-02", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-02", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-02", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-02", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-02", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-03", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-03", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-03", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-03", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 17, "contributors": 5 }, { "date": "2026-09-03", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 27, "contributors": 6 }, { "date": "2026-09-03", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-04", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-04", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-04", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-04", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 37, "contributors": 8 }, { "date": "2026-09-04", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 62, "contributors": 11 }, { "date": "2026-09-04", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 32, "contributors": 6 }, { "date": "2026-09-05", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-05", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-05", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-05", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-05", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 74, "contributors": 6 }, { "date": "2026-09-05", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-06", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-06", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-06", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-06", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-06", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-06", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-07", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-07", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-07", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-07", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 43, "contributors": 6 }, { "date": "2026-09-07", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-07", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-08", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-08", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-08", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-08", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-08", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 40, "contributors": 5 }, { "date": "2026-09-08", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW2" ], "homework": "HW2", "observation_status": "complete", "submissions": 59, "contributors": 6 }, { "date": "2026-09-09", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-09", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-09", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-09", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-09", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-09", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-10", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-10", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-10", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-10", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-10", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-10", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-11", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-11", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-11", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-11", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 86, "contributors": 6 }, { "date": "2026-09-11", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 82, "contributors": 8 }, { "date": "2026-09-11", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 35, "contributors": 5 }, { "date": "2026-09-12", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-12", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-12", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-12", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 41, "contributors": 7 }, { "date": "2026-09-12", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 38, "contributors": 10 }, { "date": "2026-09-12", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 36, "contributors": 7 }, { "date": "2026-09-13", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-13", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-13", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-13", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-13", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 62, "contributors": 8 }, { "date": "2026-09-13", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-14", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-14", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-14", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-14", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 31, "contributors": 5 }, { "date": "2026-09-14", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-14", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 62, "contributors": 10 }, { "date": "2026-09-15", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-15", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-15", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-15", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-15", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 44, "contributors": 9 }, { "date": "2026-09-15", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW3" ], "homework": "HW3", "observation_status": "complete", "submissions": 54, "contributors": 9 }, { "date": "2026-09-16", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-16", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-16", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-16", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-16", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-16", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-17", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-17", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-17", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-17", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-17", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-17", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-18", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-18", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-18", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-18", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-18", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-18", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-19", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-19", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-19", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-19", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-19", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-19", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-20", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-20", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-20", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-20", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-20", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-20", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-21", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-21", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-21", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-21", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-21", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-21", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-22", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-22", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-22", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-22", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-22", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-22", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-23", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-23", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-23", "hour": 8, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-23", "hour": 12, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-23", "hour": 16, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-23", "hour": 20, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-24", "hour": 0, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-24", "hour": 4, "hours": 4, "state": "inactive", "homeworks": [], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-24", "hour": 8, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-24", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-24", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-24", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-25", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-25", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-25", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-25", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-25", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-25", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-26", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-26", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-26", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-26", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 32, "contributors": 6 }, { "date": "2026-09-26", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 62, "contributors": 6 }, { "date": "2026-09-26", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-27", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-27", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-27", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-27", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-27", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 60, "contributors": 5 }, { "date": "2026-09-27", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-28", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-28", "hour": 4, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-28", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-28", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 53, "contributors": 9 }, { "date": "2026-09-28", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 28, "contributors": 5 }, { "date": "2026-09-28", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 35, "contributors": 9 }, { "date": "2026-09-29", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-29", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-29", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-29", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 52, "contributors": 7 }, { "date": "2026-09-29", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-29", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 82, "contributors": 9 }, { "date": "2026-09-30", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-30", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-30", "hour": 8, "hours": 4, "state": "visible", "homeworks": [ "HW4" ], "homework": "HW4", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-30", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-09-30", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-09-30", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-01", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-01", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-01", "hour": 8, "hours": 4, "state": "visible", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-01", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-01", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-01", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-02", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-02", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-02", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-02", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-02", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-02", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW4", "HW5" ], "homework": null, "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-03", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-03", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-03", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-03", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-03", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-03", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-04", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-04", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-04", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-04", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-04", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-04", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-05", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-05", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-05", "hour": 8, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-05", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-05", "hour": 16, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-05", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-06", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-06", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-06", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-06", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-06", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-06", "hour": 20, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-07", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-07", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-07", "hour": 8, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-07", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-07", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-07", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-08", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-08", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-08", "hour": 8, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-08", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-08", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-08", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-09", "hour": 0, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-09", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-09", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-09", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-09", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-09", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-10", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-10", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-10", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-10", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-10", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-10", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-11", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-11", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-11", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-11", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-11", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-11", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-12", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-12", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-12", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-12", "hour": 12, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 46, "contributors": 5 }, { "date": "2026-10-12", "hour": 16, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-12", "hour": 20, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-13", "hour": 0, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-13", "hour": 4, "hours": 4, "state": "visible", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": 0, "contributors": 0 }, { "date": "2026-10-13", "hour": 8, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "complete", "submissions": null, "contributors": null }, { "date": "2026-10-13", "hour": 12, "hours": 4, "state": "suppressed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "partial", "submissions": null, "contributors": null }, { "date": "2026-10-13", "hour": 16, "hours": 4, "state": "not_observed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "not_observed", "submissions": null, "contributors": null }, { "date": "2026-10-13", "hour": 20, "hours": 4, "state": "not_observed", "homeworks": [ "HW5" ], "homework": "HW5", "observation_status": "not_observed", "submissions": null, "contributors": null } ], "score_progression": [ { "homework": "HW1", "problem_id": 851, "problem_name": "Exercise2.5-EggsGrossDozensLeftover", "problem_order": 2, "n": 38, "first": 60.526315789473685, "best2": 72.63157894736842, "best3": 76.3157894736842, "best": 100.0, "gain": 39.473684210526315 }, { "homework": "HW1", "problem_id": 871, "problem_name": "Exercise3.3-SimpleCalculator", "problem_order": 6, "n": 38, "first": 65.78947368421052, "best2": 73.6842105263158, "best3": 81.57894736842105, "best": 100.0, "gain": 34.21052631578948 }, { "homework": "HW1", "problem_id": 11, "problem_name": "HW1-ConsectiveFours", "problem_order": 7, "n": 38, "first": 74.21052631578948, "best2": 89.47368421052632, "best3": 94.73684210526316, "best": 100.0, "gain": 25.78947368421052 }, { "homework": "HW1", "problem_id": 12, "problem_name": "HW1-SentinelValue", "problem_order": 5, "n": 38, "first": 76.3157894736842, "best2": 90.0, "best3": 94.73684210526316, "best": 100.0, "gain": 23.684210526315795 }, { "homework": "HW1", "problem_id": 366, "problem_name": "Exercise1.2.15 Triangle Sides", "problem_order": 4, "n": 38, "first": 80.0, "best2": 93.6842105263158, "best3": 97.89473684210526, "best": 100.0, "gain": 20.0 }, { "homework": "HW1", "problem_id": 16, "problem_name": "HW1-LargeToSmall", "problem_order": 3, "n": 38, "first": 80.0, "best2": 94.21052631578948, "best3": 96.3157894736842, "best": 99.47368421052632, "gain": 19.473684210526315 }, { "homework": "HW1", "problem_id": 447, "problem_name": "Exercise1.4.15-InPlaceTranspose", "problem_order": 8, "n": 38, "first": 88.59657894736843, "best2": 97.36842105263158, "best3": 100.0, "best": 100.0, "gain": 11.403421052631572 }, { "homework": "HW1", "problem_id": 15, "problem_name": "HW1-ComputeDisplacement", "problem_order": 1, "n": 38, "first": 90.0, "best2": 92.63157894736842, "best3": 92.63157894736842, "best": 100.0, "gain": 10.0 }, { "homework": "HW2", "problem_id": 1281, "problem_name": "IntQuestion", "problem_order": 7, "n": 35, "first": 53.142857142857146, "best2": 81.14285714285714, "best3": 84.0, "best": 97.14285714285714, "gain": 43.99999999999999 }, { "homework": "HW2", "problem_id": 1282, "problem_name": "ShapeZoo", "problem_order": 8, "n": 35, "first": 57.142857142857146, "best2": 71.42857142857143, "best3": 82.85714285714286, "best": 100.0, "gain": 42.857142857142854 }, { "homework": "HW2", "problem_id": 1277, "problem_name": "PairOfDice", "problem_order": 3, "n": 37, "first": 57.2972972972973, "best2": 78.91891891891892, "best3": 83.78378378378379, "best": 97.29729729729729, "gain": 39.99999999999999 }, { "homework": "HW2", "problem_id": 1279, "problem_name": "Complex", "problem_order": 5, "n": 36, "first": 64.44444444444444, "best2": 89.44444444444444, "best3": 95.55555555555556, "best": 100.0, "gain": 35.55555555555556 }, { "homework": "HW2", "problem_id": 1276, "problem_name": "CreditCard", "problem_order": 2, "n": 37, "first": 65.94594594594595, "best2": 83.24324324324324, "best3": 89.72972972972973, "best": 97.29729729729729, "gain": 31.35135135135134 }, { "homework": "HW2", "problem_id": 1280, "problem_name": "CampusDirectory", "problem_order": 6, "n": 36, "first": 64.44444444444444, "best2": 83.88888888888889, "best3": 89.44444444444444, "best": 94.44444444444444, "gain": 30.0 }, { "homework": "HW2", "problem_id": 1278, "problem_name": "Charge", "problem_order": 4, "n": 37, "first": 75.67567567567568, "best2": 78.37837837837837, "best3": 81.08108108108108, "best": 100.0, "gain": 24.324324324324323 }, { "homework": "HW2", "problem_id": 1275, "problem_name": "Normalization", "problem_order": 1, "n": 37, "first": 81.62162162162163, "best2": 89.72972972972973, "best3": 92.43243243243244, "best": 100.0, "gain": 18.378378378378372 }, { "homework": "HW3", "problem_id": 1354, "problem_name": "TicTacToe", "problem_order": 7, "n": 39, "first": 37.94871794871795, "best2": 60.51282051282051, "best3": 73.84615384615384, "best": 100.0, "gain": 62.05128205128205 }, { "homework": "HW3", "problem_id": 169, "problem_name": "26s3HW3-EvenOrOdd", "problem_order": 1, "n": 39, "first": 40.51282051282051, "best2": 48.97435897435897, "best3": 66.15384615384616, "best": 100.0, "gain": 59.48717948717949 }, { "homework": "HW3", "problem_id": 171, "problem_name": "26s3HW3-DigitProcessing", "problem_order": 2, "n": 39, "first": 64.1025641025641, "best2": 74.35897435897436, "best3": 82.05128205128206, "best": 100.0, "gain": 35.8974358974359 }, { "homework": "HW3", "problem_id": 1351, "problem_name": "Hanoi", "problem_order": 3, "n": 39, "first": 67.6923076923077, "best2": 89.74358974358974, "best3": 92.3076923076923, "best": 100.0, "gain": 32.30769230769231 }, { "homework": "HW3", "problem_id": 1355, "problem_name": "Rectangle", "problem_order": 5, "n": 39, "first": 67.6923076923077, "best2": 90.25641025641026, "best3": 94.87179487179488, "best": 100.0, "gain": 32.30769230769231 }, { "homework": "HW3", "problem_id": 1352, "problem_name": "MeasureBox", "problem_order": 4, "n": 39, "first": 79.48717948717949, "best2": 94.87179487179488, "best3": 97.43589743589743, "best": 100.0, "gain": 20.51282051282051 }, { "homework": "HW3", "problem_id": 1353, "problem_name": "LargeNumber", "problem_order": 6, "n": 39, "first": 83.07692307692308, "best2": 90.25641025641026, "best3": 92.82051282051282, "best": 96.92307692307692, "gain": 13.84615384615384 }, { "homework": "HW4", "problem_id": 1463, "problem_name": "Postfix", "problem_order": 7, "n": 38, "first": 56.8421052631579, "best2": 78.42105263157895, "best3": 89.47368421052632, "best": 100.0, "gain": 43.1578947368421 }, { "homework": "HW4", "problem_id": 1462, "problem_name": "Parentheses", "problem_order": 6, "n": 38, "first": 62.10526315789474, "best2": 81.57894736842105, "best3": 91.05263157894737, "best": 100.0, "gain": 37.89473684210526 }, { "homework": "HW4", "problem_id": 1459, "problem_name": "ZeroMatrix", "problem_order": 3, "n": 38, "first": 65.78947368421052, "best2": 90.0, "best3": 92.63157894736842, "best": 100.0, "gain": 34.21052631578948 }, { "homework": "HW4", "problem_id": 1457, "problem_name": "Dominant", "problem_order": 1, "n": 38, "first": 68.94736842105263, "best2": 84.21052631578948, "best3": 91.57894736842105, "best": 100.0, "gain": 31.05263157894737 }, { "homework": "HW4", "problem_id": 1460, "problem_name": "MinSubarray", "problem_order": 4, "n": 38, "first": 72.63157894736842, "best2": 85.78947368421052, "best3": 92.63157894736842, "best": 100.0, "gain": 27.368421052631575 }, { "homework": "HW4", "problem_id": 1464, "problem_name": "Browser", "problem_order": 8, "n": 38, "first": 74.21052631578948, "best2": 86.84210526315789, "best3": 92.63157894736842, "best": 100.0, "gain": 25.78947368421052 }, { "homework": "HW4", "problem_id": 1458, "problem_name": "Collapse", "problem_order": 2, "n": 38, "first": 77.36842105263158, "best2": 92.10526315789474, "best3": 96.3157894736842, "best": 100.0, "gain": 22.631578947368425 }, { "homework": "HW4", "problem_id": 1461, "problem_name": "ArrayStack", "problem_order": 5, "n": 38, "first": 81.05263157894737, "best2": 91.57894736842105, "best3": 96.3157894736842, "best": 100.0, "gain": 18.94736842105263 }, { "homework": "HW5", "problem_id": 1494, "problem_name": "Counting Out", "problem_order": 4, "n": 16, "first": 58.75, "best2": 87.5, "best3": 87.5, "best": 100.0, "gain": 41.25 }, { "homework": "HW5", "problem_id": 1500, "problem_name": "Halfway", "problem_order": 2, "n": 21, "first": 64.76190476190476, "best2": 76.19047619047619, "best3": 88.57142857142857, "best": 100.0, "gain": 35.23809523809524 }, { "homework": "HW5", "problem_id": 1502, "problem_name": "RowByRow", "problem_order": 6, "n": 15, "first": 68.0, "best2": 80.0, "best3": 90.66666666666667, "best": 100.0, "gain": 32.0 }, { "homework": "HW5", "problem_id": 1493, "problem_name": "Waiting Line", "problem_order": 3, "n": 20, "first": 65.0, "best2": 76.0, "best3": 90.0, "best": 95.0, "gain": 30.0 }, { "homework": "HW5", "problem_id": 1501, "problem_name": "SandwichLine", "problem_order": 5, "n": 16, "first": 71.25, "best2": 86.25, "best3": 88.75, "best": 100.0, "gain": 28.75 }, { "homework": "HW5", "problem_id": 1497, "problem_name": "HeapArray", "problem_order": 10, "n": 12, "first": 75.0, "best2": 88.33333333333333, "best3": 98.33333333333333, "best": 100.0, "gain": 25.0 }, { "homework": "HW5", "problem_id": 1498, "problem_name": "Kth Largest", "problem_order": 11, "n": 12, "first": 75.0, "best2": 100.0, "best3": 100.0, "best": 100.0, "gain": 25.0 }, { "homework": "HW5", "problem_id": 1504, "problem_name": "Phone Book", "problem_order": 12, "n": 12, "first": 76.66666666666667, "best2": 96.66666666666667, "best3": 96.66666666666667, "best": 100.0, "gain": 23.33333333333333 }, { "homework": "HW5", "problem_id": 1499, "problem_name": "Rewind", "problem_order": 1, "n": 22, "first": 77.27272727272727, "best2": 87.27272727272727, "best3": 94.54545454545455, "best": 100.0, "gain": 22.727272727272734 }, { "homework": "HW5", "problem_id": 1503, "problem_name": "LeftPacked", "problem_order": 7, "n": 15, "first": 80.0, "best2": 93.33333333333333, "best3": 93.33333333333333, "best": 100.0, "gain": 20.0 }, { "homework": "HW5", "problem_id": 1495, "problem_name": "Rebuild", "problem_order": 8, "n": 12, "first": 91.66666666666667, "best2": 100.0, "best3": 100.0, "best": 100.0, "gain": 8.333333333333329 }, { "homework": "HW5", "problem_id": 1496, "problem_name": "SearchTree", "problem_order": 9, "n": 12, "first": 91.66666666666667, "best2": 91.66666666666667, "best3": 100.0, "best": 100.0, "gain": 8.333333333333329 } ], "attempt_score_series": [ { "homework": "HW1", "attempt": 1, "state": "visible", "submissions": 304, "contributors": 38, "mean_score": 76.92983552631578 }, { "homework": "HW1", "attempt": 2, "state": "visible", "submissions": 106, "contributors": 34, "mean_score": 64.52830188679245 }, { "homework": "HW1", "attempt": 3, "state": "visible", "submissions": 52, "contributors": 25, "mean_score": 49.61538461538461 }, { "homework": "HW1", "attempt": 4, "state": "visible", "submissions": 37, "contributors": 18, "mean_score": 52.52256756756757 }, { "homework": "HW1", "attempt": 5, "state": "visible", "submissions": 24, "contributors": 11, "mean_score": 46.666666666666664 }, { "homework": "HW1", "attempt": 6, "state": "visible", "submissions": 18, "contributors": 10, "mean_score": 24.444444444444443 }, { "homework": "HW1", "attempt": 7, "state": "visible", "submissions": 15, "contributors": 9, "mean_score": 33.333333333333336 }, { "homework": "HW1", "attempt": 8, "state": "visible", "submissions": 14, "contributors": 9, "mean_score": 28.571428571428573 }, { "homework": "HW1", "attempt": 9, "state": "visible", "submissions": 11, "contributors": 7, "mean_score": 25.454545454545453 }, { "homework": "HW1", "attempt": 10, "state": "visible", "submissions": 10, "contributors": 6, "mean_score": 20.0 }, { "homework": "HW1", "attempt": 11, "state": "visible", "submissions": 8, "contributors": 6, "mean_score": 25.0 }, { "homework": "HW1", "attempt": 12, "state": "visible", "submissions": 7, "contributors": 5, "mean_score": 28.571428571428573 }, { "homework": "HW1", "attempt": 13, "state": "visible", "submissions": 7, "contributors": 5, "mean_score": 54.285714285714285 }, { "homework": "HW1", "attempt": 14, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 15, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 16, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 17, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 18, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 19, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 20, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 21, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 22, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 23, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 24, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 25, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 26, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 27, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 28, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 29, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 30, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 31, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 32, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 33, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 34, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 35, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 36, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 37, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 38, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 39, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 40, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 41, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 42, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW1", "attempt": 43, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW2", "attempt": 1, "state": "visible", "submissions": 290, "contributors": 38, "mean_score": 65.10344827586206 }, { "homework": "HW2", "attempt": 2, "state": "visible", "submissions": 134, "contributors": 33, "mean_score": 57.61194029850746 }, { "homework": "HW2", "attempt": 3, "state": "visible", "submissions": 74, "contributors": 25, "mean_score": 45.945945945945944 }, { "homework": "HW2", "attempt": 4, "state": "visible", "submissions": 49, "contributors": 17, "mean_score": 46.12244897959184 }, { "homework": "HW2", "attempt": 5, "state": "visible", "submissions": 36, "contributors": 13, "mean_score": 51.111111111111114 }, { "homework": "HW2", "attempt": 6, "state": "visible", "submissions": 21, "contributors": 8, "mean_score": 54.285714285714285 }, { "homework": "HW2", "attempt": 7, "state": "visible", "submissions": 16, "contributors": 7, "mean_score": 51.25 }, { "homework": "HW2", "attempt": 8, "state": "visible", "submissions": 11, "contributors": 6, "mean_score": 27.272727272727273 }, { "homework": "HW2", "attempt": 9, "state": "visible", "submissions": 10, "contributors": 5, "mean_score": 38.0 }, { "homework": "HW2", "attempt": 10, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW2", "attempt": 11, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW2", "attempt": 12, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW2", "attempt": 13, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW2", "attempt": 14, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW2", "attempt": 15, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW2", "attempt": 16, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 1, "state": "visible", "submissions": 273, "contributors": 39, "mean_score": 62.93040293040293 }, { "homework": "HW3", "attempt": 2, "state": "visible", "submissions": 118, "contributors": 36, "mean_score": 45.932203389830505 }, { "homework": "HW3", "attempt": 3, "state": "visible", "submissions": 77, "contributors": 32, "mean_score": 45.45454545454545 }, { "homework": "HW3", "attempt": 4, "state": "visible", "submissions": 59, "contributors": 27, "mean_score": 46.610169491525426 }, { "homework": "HW3", "attempt": 5, "state": "visible", "submissions": 40, "contributors": 17, "mean_score": 34.0 }, { "homework": "HW3", "attempt": 6, "state": "visible", "submissions": 30, "contributors": 12, "mean_score": 36.333333333333336 }, { "homework": "HW3", "attempt": 7, "state": "visible", "submissions": 28, "contributors": 11, "mean_score": 48.92857142857143 }, { "homework": "HW3", "attempt": 8, "state": "visible", "submissions": 22, "contributors": 9, "mean_score": 54.09090909090909 }, { "homework": "HW3", "attempt": 9, "state": "visible", "submissions": 16, "contributors": 8, "mean_score": 53.75 }, { "homework": "HW3", "attempt": 10, "state": "visible", "submissions": 15, "contributors": 7, "mean_score": 43.333333333333336 }, { "homework": "HW3", "attempt": 11, "state": "visible", "submissions": 13, "contributors": 6, "mean_score": 40.76923076923077 }, { "homework": "HW3", "attempt": 12, "state": "visible", "submissions": 11, "contributors": 6, "mean_score": 36.36363636363637 }, { "homework": "HW3", "attempt": 13, "state": "visible", "submissions": 9, "contributors": 5, "mean_score": 33.333333333333336 }, { "homework": "HW3", "attempt": 14, "state": "visible", "submissions": 9, "contributors": 5, "mean_score": 44.44444444444444 }, { "homework": "HW3", "attempt": 15, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 16, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 17, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 18, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 19, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 20, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 21, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 22, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 23, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 24, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 25, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 26, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 27, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW3", "attempt": 28, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 1, "state": "visible", "submissions": 304, "contributors": 38, "mean_score": 69.86842105263158 }, { "homework": "HW4", "attempt": 2, "state": "visible", "submissions": 120, "contributors": 35, "mean_score": 60.333333333333336 }, { "homework": "HW4", "attempt": 3, "state": "visible", "submissions": 71, "contributors": 22, "mean_score": 58.87323943661972 }, { "homework": "HW4", "attempt": 4, "state": "visible", "submissions": 43, "contributors": 19, "mean_score": 53.02325581395349 }, { "homework": "HW4", "attempt": 5, "state": "visible", "submissions": 28, "contributors": 13, "mean_score": 37.142857142857146 }, { "homework": "HW4", "attempt": 6, "state": "visible", "submissions": 25, "contributors": 12, "mean_score": 57.6 }, { "homework": "HW4", "attempt": 7, "state": "visible", "submissions": 20, "contributors": 8, "mean_score": 49.0 }, { "homework": "HW4", "attempt": 8, "state": "visible", "submissions": 18, "contributors": 6, "mean_score": 57.77777777777778 }, { "homework": "HW4", "attempt": 9, "state": "visible", "submissions": 16, "contributors": 5, "mean_score": 70.0 }, { "homework": "HW4", "attempt": 10, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 11, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 12, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 13, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 14, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 15, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 16, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 17, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 18, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 19, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 20, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 21, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 22, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 23, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 24, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 25, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 26, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 27, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 28, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 29, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 30, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 31, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 32, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 33, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 34, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 35, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 36, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 37, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 38, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 39, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 40, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 41, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW4", "attempt": 42, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 1, "state": "visible", "submissions": 185, "contributors": 23, "mean_score": 73.4054054054054 }, { "homework": "HW5", "attempt": 2, "state": "visible", "submissions": 70, "contributors": 18, "mean_score": 62.857142857142854 }, { "homework": "HW5", "attempt": 3, "state": "visible", "submissions": 41, "contributors": 13, "mean_score": 54.63414634146341 }, { "homework": "HW5", "attempt": 4, "state": "visible", "submissions": 30, "contributors": 9, "mean_score": 72.66666666666667 }, { "homework": "HW5", "attempt": 5, "state": "visible", "submissions": 19, "contributors": 5, "mean_score": 69.47368421052632 }, { "homework": "HW5", "attempt": 6, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 7, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 8, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 9, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 10, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 11, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 12, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 13, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 14, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 15, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 16, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 17, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 18, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 19, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 20, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 21, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 22, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 23, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 24, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 25, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 26, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 27, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 28, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 29, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 30, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 31, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 32, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 33, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 34, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 35, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 36, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null }, { "homework": "HW5", "attempt": 37, "state": "suppressed", "submissions": null, "contributors": null, "mean_score": null } ], "event_progress": { "policy": { "minimum_distinct_contributors": 5, "eligibility": "A completed in-window retry after a valid baseline with prior best below 100", "new_best": "Normalized score strictly exceeds the prior within-window best; ties do not count", "internal_error": "IE judgements are skipped; compilation errors remain scored attempts", "gap": "Clock time since the previous valid same-student homework-problem submission", "phase": "Five equal-duration intervals from configured opening to deadline; deadline is in the last bin", "observation": "Ongoing windows are truncated at the snapshot; partial phases are labelled and future phases have null values", "secondary_suppression": "A second nonempty cell is hidden if a partition has exactly one primary mask", "weighting": "Equal weight per eligible retry; students can contribute multiple retries" }, "eligibility_counts": { "first_scores": 1356, "internal_errors": 13, "after_full_credit": 645 }, "by_homework": [ { "homework": "HW1", "state": "visible", "eligible_retries": 294, "new_bests": 95, "contributors": 29, "improvement_pct": 32.31292517006803 }, { "homework": "HW2", "state": "visible", "eligible_retries": 278, "new_bests": 125, "contributors": 32, "improvement_pct": 44.96402877697842 }, { "homework": "HW3", "state": "visible", "eligible_retries": 344, "new_bests": 119, "contributors": 34, "improvement_pct": 34.593023255813954 }, { "homework": "HW4", "state": "visible", "eligible_retries": 315, "new_bests": 136, "contributors": 34, "improvement_pct": 43.17460317460318 }, { "homework": "HW5", "state": "visible", "eligible_retries": 114, "new_bests": 72, "contributors": 18, "improvement_pct": 63.1578947368421 } ], "by_gap": [ { "gap_bin": 0, "label": "Under 1 min", "state": "visible", "eligible_retries": 634, "new_bests": 215, "contributors": 35, "improvement_pct": 33.91167192429022 }, { "gap_bin": 1, "label": "1–10 min", "state": "visible", "eligible_retries": 618, "new_bests": 291, "contributors": 37, "improvement_pct": 47.0873786407767 }, { "gap_bin": 2, "label": "10–60 min", "state": "visible", "eligible_retries": 64, "new_bests": 29, "contributors": 24, "improvement_pct": 45.3125 }, { "gap_bin": 3, "label": "1–24 hours", "state": "visible", "eligible_retries": 21, "new_bests": 8, "contributors": 11, "improvement_pct": 38.095238095238095 }, { "gap_bin": 4, "label": "24 hours or more", "state": "visible", "eligible_retries": 8, "new_bests": 4, "contributors": 6, "improvement_pct": 50.0 } ], "by_problem": [ { "homework": "HW1", "problem_id": 11, "problem_name": "HW1-ConsectiveFours", "state": "visible", "eligible_retries": 22, "new_bests": 10, "contributors": 10, "improvement_pct": 45.45454545454545 }, { "homework": "HW1", "problem_id": 12, "problem_name": "HW1-SentinelValue", "state": "visible", "eligible_retries": 32, "new_bests": 13, "contributors": 11, "improvement_pct": 40.625 }, { "homework": "HW1", "problem_id": 15, "problem_name": "HW1-ComputeDisplacement", "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null }, { "homework": "HW1", "problem_id": 16, "problem_name": "HW1-LargeToSmall", "state": "visible", "eligible_retries": 36, "new_bests": 16, "contributors": 14, "improvement_pct": 44.44444444444444 }, { "homework": "HW1", "problem_id": 366, "problem_name": "Exercise1.2.15 Triangle Sides", "state": "visible", "eligible_retries": 16, "new_bests": 13, "contributors": 9, "improvement_pct": 81.25 }, { "homework": "HW1", "problem_id": 447, "problem_name": "Exercise1.4.15-InPlaceTranspose", "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null }, { "homework": "HW1", "problem_id": 851, "problem_name": "Exercise2.5-EggsGrossDozensLeftover", "state": "visible", "eligible_retries": 93, "new_bests": 18, "contributors": 16, "improvement_pct": 19.35483870967742 }, { "homework": "HW1", "problem_id": 871, "problem_name": "Exercise3.3-SimpleCalculator", "state": "visible", "eligible_retries": 78, "new_bests": 15, "contributors": 13, "improvement_pct": 19.23076923076923 }, { "homework": "HW2", "problem_id": 1275, "problem_name": "Normalization", "state": "visible", "eligible_retries": 19, "new_bests": 11, "contributors": 9, "improvement_pct": 57.89473684210526 }, { "homework": "HW2", "problem_id": 1276, "problem_name": "CreditCard", "state": "visible", "eligible_retries": 31, "new_bests": 16, "contributors": 12, "improvement_pct": 51.61290322580645 }, { "homework": "HW2", "problem_id": 1277, "problem_name": "PairOfDice", "state": "visible", "eligible_retries": 55, "new_bests": 23, "contributors": 19, "improvement_pct": 41.81818181818182 }, { "homework": "HW2", "problem_id": 1278, "problem_name": "Charge", "state": "visible", "eligible_retries": 45, "new_bests": 9, "contributors": 9, "improvement_pct": 20.0 }, { "homework": "HW2", "problem_id": 1279, "problem_name": "Complex", "state": "visible", "eligible_retries": 28, "new_bests": 20, "contributors": 15, "improvement_pct": 71.42857142857143 }, { "homework": "HW2", "problem_id": 1280, "problem_name": "CampusDirectory", "state": "visible", "eligible_retries": 23, "new_bests": 12, "contributors": 13, "improvement_pct": 52.17391304347826 }, { "homework": "HW2", "problem_id": 1281, "problem_name": "IntQuestion", "state": "visible", "eligible_retries": 35, "new_bests": 19, "contributors": 18, "improvement_pct": 54.285714285714285 }, { "homework": "HW2", "problem_id": 1282, "problem_name": "ShapeZoo", "state": "visible", "eligible_retries": 42, "new_bests": 15, "contributors": 15, "improvement_pct": 35.714285714285715 }, { "homework": "HW3", "problem_id": 169, "problem_name": "26s3HW3-EvenOrOdd", "state": "visible", "eligible_retries": 130, "new_bests": 30, "contributors": 25, "improvement_pct": 23.076923076923077 }, { "homework": "HW3", "problem_id": 171, "problem_name": "26s3HW3-DigitProcessing", "state": "visible", "eligible_retries": 63, "new_bests": 14, "contributors": 14, "improvement_pct": 22.22222222222222 }, { "homework": "HW3", "problem_id": 1351, "problem_name": "Hanoi", "state": "visible", "eligible_retries": 27, "new_bests": 13, "contributors": 13, "improvement_pct": 48.148148148148145 }, { "homework": "HW3", "problem_id": 1352, "problem_name": "MeasureBox", "state": "visible", "eligible_retries": 12, "new_bests": 8, "contributors": 8, "improvement_pct": 66.66666666666667 }, { "homework": "HW3", "problem_id": 1353, "problem_name": "LargeNumber", "state": "visible", "eligible_retries": 20, "new_bests": 9, "contributors": 6, "improvement_pct": 45.0 }, { "homework": "HW3", "problem_id": 1354, "problem_name": "TicTacToe", "state": "visible", "eligible_retries": 71, "new_bests": 31, "contributors": 25, "improvement_pct": 43.66197183098591 }, { "homework": "HW3", "problem_id": 1355, "problem_name": "Rectangle", "state": "visible", "eligible_retries": 21, "new_bests": 14, "contributors": 13, "improvement_pct": 66.66666666666667 }, { "homework": "HW4", "problem_id": 1457, "problem_name": "Dominant", "state": "visible", "eligible_retries": 30, "new_bests": 19, "contributors": 14, "improvement_pct": 63.333333333333336 }, { "homework": "HW4", "problem_id": 1458, "problem_name": "Collapse", "state": "visible", "eligible_retries": 28, "new_bests": 13, "contributors": 9, "improvement_pct": 46.42857142857143 }, { "homework": "HW4", "problem_id": 1459, "problem_name": "ZeroMatrix", "state": "visible", "eligible_retries": 40, "new_bests": 16, "contributors": 14, "improvement_pct": 40.0 }, { "homework": "HW4", "problem_id": 1460, "problem_name": "MinSubarray", "state": "visible", "eligible_retries": 46, "new_bests": 19, "contributors": 15, "improvement_pct": 41.30434782608695 }, { "homework": "HW4", "problem_id": 1461, "problem_name": "ArrayStack", "state": "visible", "eligible_retries": 20, "new_bests": 10, "contributors": 8, "improvement_pct": 50.0 }, { "homework": "HW4", "problem_id": 1462, "problem_name": "Parentheses", "state": "visible", "eligible_retries": 57, "new_bests": 21, "contributors": 18, "improvement_pct": 36.8421052631579 }, { "homework": "HW4", "problem_id": 1463, "problem_name": "Postfix", "state": "visible", "eligible_retries": 34, "new_bests": 18, "contributors": 17, "improvement_pct": 52.94117647058823 }, { "homework": "HW4", "problem_id": 1464, "problem_name": "Browser", "state": "visible", "eligible_retries": 60, "new_bests": 20, "contributors": 11, "improvement_pct": 33.333333333333336 }, { "homework": "HW5", "problem_id": 1493, "problem_name": "Waiting Line", "state": "visible", "eligible_retries": 13, "new_bests": 8, "contributors": 7, "improvement_pct": 61.53846153846154 }, { "homework": "HW5", "problem_id": 1494, "problem_name": "Counting Out", "state": "visible", "eligible_retries": 13, "new_bests": 7, "contributors": 7, "improvement_pct": 53.84615384615385 }, { "homework": "HW5", "problem_id": 1495, "problem_name": "Rebuild", "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null }, { "homework": "HW5", "problem_id": 1496, "problem_name": "SearchTree", "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null }, { "homework": "HW5", "problem_id": 1497, "problem_name": "HeapArray", "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null }, { "homework": "HW5", "problem_id": 1498, "problem_name": "Kth Largest", "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null }, { "homework": "HW5", "problem_id": 1499, "problem_name": "Rewind", "state": "visible", "eligible_retries": 14, "new_bests": 10, "contributors": 6, "improvement_pct": 71.42857142857143 }, { "homework": "HW5", "problem_id": 1500, "problem_name": "Halfway", "state": "visible", "eligible_retries": 19, "new_bests": 12, "contributors": 9, "improvement_pct": 63.1578947368421 }, { "homework": "HW5", "problem_id": 1501, "problem_name": "SandwichLine", "state": "visible", "eligible_retries": 19, "new_bests": 8, "contributors": 7, "improvement_pct": 42.10526315789474 }, { "homework": "HW5", "problem_id": 1502, "problem_name": "RowByRow", "state": "visible", "eligible_retries": 11, "new_bests": 8, "contributors": 6, "improvement_pct": 72.72727272727273 }, { "homework": "HW5", "problem_id": 1503, "problem_name": "LeftPacked", "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null }, { "homework": "HW5", "problem_id": 1504, "problem_name": "Phone Book", "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null } ], "by_phase": [ { "homework": "HW1", "phase": 0, "label": "0–20%", "phase_hours": 30.596666666666664, "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null, "phase_start_local": "2026-08-26T15:00:00+08:00", "phase_end_local": "2026-08-27T21:35:48+08:00", "observation_status": "complete", "observed_until_local": "2026-08-27T21:35:48+08:00" }, { "homework": "HW1", "phase": 1, "label": "20–40%", "phase_hours": 30.596666666666664, "state": "visible", "eligible_retries": 76, "new_bests": 21, "contributors": 7, "improvement_pct": 27.63157894736842, "phase_start_local": "2026-08-27T21:35:48+08:00", "phase_end_local": "2026-08-29T04:11:36+08:00", "observation_status": "complete", "observed_until_local": "2026-08-29T04:11:36+08:00" }, { "homework": "HW1", "phase": 2, "label": "40–60%", "phase_hours": 30.596666666666664, "state": "visible", "eligible_retries": 133, "new_bests": 33, "contributors": 12, "improvement_pct": 24.81203007518797, "phase_start_local": "2026-08-29T04:11:36+08:00", "phase_end_local": "2026-08-30T10:47:24+08:00", "observation_status": "complete", "observed_until_local": "2026-08-30T10:47:24+08:00" }, { "homework": "HW1", "phase": 3, "label": "60–80%", "phase_hours": 30.596666666666664, "state": "visible", "eligible_retries": 42, "new_bests": 20, "contributors": 8, "improvement_pct": 47.61904761904762, "phase_start_local": "2026-08-30T10:47:24+08:00", "phase_end_local": "2026-08-31T17:23:12+08:00", "observation_status": "complete", "observed_until_local": "2026-08-31T17:23:12+08:00" }, { "homework": "HW1", "phase": 4, "label": "80–100%", "phase_hours": 30.596666666666664, "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null, "phase_start_local": "2026-08-31T17:23:12+08:00", "phase_end_local": "2026-09-01T23:59:00+08:00", "observation_status": "complete", "observed_until_local": "2026-09-01T23:59:00+08:00" }, { "homework": "HW2", "phase": 0, "label": "0–20%", "phase_hours": 26.396666666666665, "state": "visible", "eligible_retries": 40, "new_bests": 21, "contributors": 8, "improvement_pct": 52.5, "phase_start_local": "2026-09-03T12:00:00+08:00", "phase_end_local": "2026-09-04T14:23:48+08:00", "observation_status": "complete", "observed_until_local": "2026-09-04T14:23:48+08:00" }, { "homework": "HW2", "phase": 1, "label": "20–40%", "phase_hours": 26.396666666666665, "state": "visible", "eligible_retries": 116, "new_bests": 42, "contributors": 13, "improvement_pct": 36.206896551724135, "phase_start_local": "2026-09-04T14:23:48+08:00", "phase_end_local": "2026-09-05T16:47:36+08:00", "observation_status": "complete", "observed_until_local": "2026-09-05T16:47:36+08:00" }, { "homework": "HW2", "phase": 2, "label": "40–60%", "phase_hours": 26.396666666666665, "state": "visible", "eligible_retries": 58, "new_bests": 27, "contributors": 7, "improvement_pct": 46.55172413793103, "phase_start_local": "2026-09-05T16:47:36+08:00", "phase_end_local": "2026-09-06T19:11:24+08:00", "observation_status": "complete", "observed_until_local": "2026-09-06T19:11:24+08:00" }, { "homework": "HW2", "phase": 3, "label": "60–80%", "phase_hours": 26.396666666666665, "state": "visible", "eligible_retries": 39, "new_bests": 21, "contributors": 8, "improvement_pct": 53.84615384615385, "phase_start_local": "2026-09-06T19:11:24+08:00", "phase_end_local": "2026-09-07T21:35:12+08:00", "observation_status": "complete", "observed_until_local": "2026-09-07T21:35:12+08:00" }, { "homework": "HW2", "phase": 4, "label": "80–100%", "phase_hours": 26.396666666666665, "state": "visible", "eligible_retries": 25, "new_bests": 14, "contributors": 8, "improvement_pct": 56.0, "phase_start_local": "2026-09-07T21:35:12+08:00", "phase_end_local": "2026-09-08T23:59:00+08:00", "observation_status": "complete", "observed_until_local": "2026-09-08T23:59:00+08:00" }, { "homework": "HW3", "phase": 0, "label": "0–20%", "phase_hours": 21.796666666666667, "state": "visible", "eligible_retries": 155, "new_bests": 39, "contributors": 12, "improvement_pct": 25.161290322580644, "phase_start_local": "2026-09-11T11:00:00+08:00", "phase_end_local": "2026-09-12T08:47:48+08:00", "observation_status": "complete", "observed_until_local": "2026-09-12T08:47:48+08:00" }, { "homework": "HW3", "phase": 1, "label": "20–40%", "phase_hours": 21.796666666666667, "state": "visible", "eligible_retries": 60, "new_bests": 33, "contributors": 13, "improvement_pct": 55.0, "phase_start_local": "2026-09-12T08:47:48+08:00", "phase_end_local": "2026-09-13T06:35:36+08:00", "observation_status": "complete", "observed_until_local": "2026-09-13T06:35:36+08:00" }, { "homework": "HW3", "phase": 2, "label": "40–60%", "phase_hours": 21.796666666666667, "state": "visible", "eligible_retries": 37, "new_bests": 13, "contributors": 7, "improvement_pct": 35.13513513513514, "phase_start_local": "2026-09-13T06:35:36+08:00", "phase_end_local": "2026-09-14T04:23:24+08:00", "observation_status": "complete", "observed_until_local": "2026-09-14T04:23:24+08:00" }, { "homework": "HW3", "phase": 3, "label": "60–80%", "phase_hours": 21.796666666666667, "state": "visible", "eligible_retries": 68, "new_bests": 22, "contributors": 9, "improvement_pct": 32.35294117647059, "phase_start_local": "2026-09-14T04:23:24+08:00", "phase_end_local": "2026-09-15T02:11:12+08:00", "observation_status": "complete", "observed_until_local": "2026-09-15T02:11:12+08:00" }, { "homework": "HW3", "phase": 4, "label": "80–100%", "phase_hours": 21.796666666666667, "state": "visible", "eligible_retries": 24, "new_bests": 12, "contributors": 6, "improvement_pct": 50.0, "phase_start_local": "2026-09-15T02:11:12+08:00", "phase_end_local": "2026-09-15T23:59:00+08:00", "observation_status": "complete", "observed_until_local": "2026-09-15T23:59:00+08:00" }, { "homework": "HW4", "phase": 0, "label": "0–20%", "phase_hours": 41.196666666666665, "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null, "phase_start_local": "2026-09-24T10:00:00+08:00", "phase_end_local": "2026-09-26T03:11:48+08:00", "observation_status": "complete", "observed_until_local": "2026-09-26T03:11:48+08:00" }, { "homework": "HW4", "phase": 1, "label": "20–40%", "phase_hours": 41.196666666666665, "state": "visible", "eligible_retries": 159, "new_bests": 41, "contributors": 10, "improvement_pct": 25.78616352201258, "phase_start_local": "2026-09-26T03:11:48+08:00", "phase_end_local": "2026-09-27T20:23:36+08:00", "observation_status": "complete", "observed_until_local": "2026-09-27T20:23:36+08:00" }, { "homework": "HW4", "phase": 2, "label": "40–60%", "phase_hours": 41.196666666666665, "state": "visible", "eligible_retries": 87, "new_bests": 56, "contributors": 15, "improvement_pct": 64.36781609195403, "phase_start_local": "2026-09-27T20:23:36+08:00", "phase_end_local": "2026-09-29T13:35:24+08:00", "observation_status": "complete", "observed_until_local": "2026-09-29T13:35:24+08:00" }, { "homework": "HW4", "phase": 3, "label": "60–80%", "phase_hours": 41.196666666666665, "state": "visible", "eligible_retries": 36, "new_bests": 21, "contributors": 12, "improvement_pct": 58.333333333333336, "phase_start_local": "2026-09-29T13:35:24+08:00", "phase_end_local": "2026-10-01T06:47:12+08:00", "observation_status": "complete", "observed_until_local": "2026-10-01T06:47:12+08:00" }, { "homework": "HW4", "phase": 4, "label": "80–100%", "phase_hours": 41.196666666666665, "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null, "phase_start_local": "2026-10-01T06:47:12+08:00", "phase_end_local": "2026-10-02T23:59:00+08:00", "observation_status": "complete", "observed_until_local": "2026-10-02T23:59:00+08:00" }, { "homework": "HW5", "phase": 0, "label": "0–20%", "phase_hours": 88.04666666666667, "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null, "phase_start_local": "2026-09-30T15:45:00+08:00", "phase_end_local": "2026-10-04T07:47:48+08:00", "observation_status": "complete", "observed_until_local": "2026-10-04T07:47:48+08:00" }, { "homework": "HW5", "phase": 1, "label": "20–40%", "phase_hours": 88.04666666666667, "state": "suppressed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null, "phase_start_local": "2026-10-04T07:47:48+08:00", "phase_end_local": "2026-10-07T23:50:36+08:00", "observation_status": "complete", "observed_until_local": "2026-10-07T23:50:36+08:00" }, { "homework": "HW5", "phase": 2, "label": "40–60%", "phase_hours": 88.04666666666667, "state": "visible", "eligible_retries": 29, "new_bests": 24, "contributors": 6, "improvement_pct": 82.75862068965517, "phase_start_local": "2026-10-07T23:50:36+08:00", "phase_end_local": "2026-10-11T15:53:24+08:00", "observation_status": "complete", "observed_until_local": "2026-10-11T15:53:24+08:00" }, { "homework": "HW5", "phase": 3, "label": "60–80%", "phase_hours": 88.04666666666667, "state": "visible", "eligible_retries": 31, "new_bests": 18, "contributors": 7, "improvement_pct": 58.064516129032256, "phase_start_local": "2026-10-11T15:53:24+08:00", "phase_end_local": "2026-10-15T07:56:12+08:00", "observation_status": "partial", "observed_until_local": "2026-10-13T14:13:19.647089+08:00" }, { "homework": "HW5", "phase": 4, "label": "80–100%", "phase_hours": 88.04666666666667, "state": "not_observed", "eligible_retries": null, "new_bests": null, "contributors": null, "improvement_pct": null, "phase_start_local": "2026-10-15T07:56:12+08:00", "phase_end_local": "2026-10-18T23:59:00+08:00", "observation_status": "not_observed", "observed_until_local": null } ] }, "exclusion_policy": { "basis": "Previously confirmed test account, matched by private HMAC linkage", "excluded_roster_members": 1, "excluded_submission_events": 2 }, "input_sha256": "3374b5b43147c944bd7b3aadd62b05af7db53fcbabaa2f25a0c6260b8da3731c" }