FA-78293 / Subtitle cue timing / Member archive

Active cue lookup with prefix maximum ends: bisect side · case 03

A cue starting exactly at the query time is not shown.

Member previewVariant 3 · 3 implementations · 9 checks per implementation

Case contract

cues [start,end] are sorted by start. Return the ascending indices of cues active at t (start <= t < end). The search bisects the starts and walks backwards while the running maximum end of the prefix exceeds t.

Why this case matters

Subtitle timing defects shift, hide or overlap captions that viewers depend on for comprehension and accessibility.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
regression: bisect side	`[]`	`[0]`	Failed

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