FA-94643 / Exam timetabling constraints / Member archive

Overlap detected only when the second booking starts inside the first · case 03

A later-listed booking that starts earlier and overlaps is missed.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

bookings [room, exam, start, end, setup minutes]; each booking occupies [start - setup, end + cleanup). Two bookings in the same room conflict if their occupied intervals overlap (touching is fine). Return sorted [room, exam, exam] rows with the exam pair sorted.

Why this case matters

Exam rooms need setup and clearance time; conflicts must account for both buffers.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
regression: containment overlap 1	`[]`	`[["R2", "CS", "LAW"], ["R2", "GEO", "PHYS"]]`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.