FA-94832 / Exam timetabling constraints / Member archive

Two-hour exams given relief cover · case 02

Exactly two-hour exams draw relief invigilators unnecessarily.

Member previewVariant 2 · 3 implementations · 8 checks per implementation

Case contract

rooms [room, venue, period, exam duration, candidates]. Rooms with candidates running exams longer than 120 minutes need relief cover; each venue-period needs ceil(qualifying rooms / per_relief) relief invigilators. Return [venue, period, qualifying rooms, relief invigilators] sorted by venue, period.

Why this case matters

Long exams need relief invigilators so room staff can take breaks; cover is pooled per venue and period.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
regression: long exam threshold 1	`[["annex", 0, 1, 1], ["annex", 1, 1, 1], ["main", 0, 1, 1]]`	`[["annex", 0, 1, 1], ["annex", 1, 1, 1]]`	Failed

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