FA-94458 / Exam timetabling constraints / Member archive

Extended sittings compared in input order · case 03

A student's exams listed out of order produce spurious or missed conflicts.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

A student's exams [id, start, duration] and an extra-time percentage. Extended duration = ceil(duration * (100 + pct) / 100), then rounded up to a multiple of 5 minutes. In start order (ties by id) a pair conflicts if the next start is earlier than the previous extended end plus the rest minutes. Return [[id, extended end] in order, conflicting pairs].

Why this case matters

Access arrangements extend sittings; the timetable must still leave rest between a student's exams.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
regression: chronological order 1	`[[["T1", 940], ["R0", 660]], [["T1", "R0"]]]`	`[[["R0", 660], ["T1", 940]], []]`	Failed

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