FA-98102 / Sequence batch packing / Member archive
Length bin packing uses next-fit instead of first-fit · case 02
Length bin packing uses next-fit instead of first-fit.
Case contract
Sort lengths descending with stable ties, then place each item into the first existing bin with enough remaining capacity; otherwise open a bin.
Why this case matters
This deterministic toy packing rule models a common boundary in preparing bounded training sequences.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| reuse earlier bin | [[4], [3, 2], [1]] | [[4, 1], [3, 2]] | Failed |
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