FA-97848 / Dataset split isolation / Member archive
Dataset split: groups are alternated by input order despite unequal sizes · case 03
groups are alternated by input order despite unequal sizes.
Case contract
Groups map to nonempty lists of row IDs. Return train IDs from largest-first greedy size balancing; ties choose train.
Why this case matters
This toy split allocator makes membership rules explicit for reproducible evaluation fixtures.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| large first | [0, 1, 2, 3, 4, 5, "c"] | [0, 1, 2, 3, 4, 5] | Failed |
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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