FA-94093 / Shift rostering labor rules / Member archive

Trainees counted as full heads · case 03

Slots staffed only by trainees appear fully covered.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

Shifts [worker, role, start, end], a list of required headcount per slot and a slot length. A shift covers slot k only if it spans the whole slot [k*slot, (k+1)*slot). Coverage is counted in half-heads: trainees 1, staff and supervisors 2; a worker counts once per slot at their best role weight. Return [slot, have, need] (half-heads) for every understaffed slot.

Why this case matters

Coverage checks decide whether a roster meets minimum staffing ratios.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
regression: trainee weight 1	`[[0, 0, 2], [1, 2, 6]]`	`[[0, 0, 2], [1, 2, 6], [2, 5, 6]]`	Failed

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