FA-94700 / Exam timetabling constraints / Member archive

Online exam candidates consume hall seats · case 05

Periods with online exams appear over capacity.

Member previewVariant 5 · 3 implementations · 8 checks per implementation

Case contract

sits [student, exam, period, access]; cap period -> seats (missing = 0); mode exam -> paper/online (missing = paper). Each distinct (student, exam) uses one seat, two with an access arrangement, and none for online exams. Return [period, used, capacity] for periods over capacity, by period.

Why this case matters

Seat capacity per period is a hard constraint on which periods can take large exams.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
regression: online seats 1	`[[1, 5, 2], [2, 4, 0]]`	`[[1, 3, 2], [2, 2, 0]]`	Failed

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