FA-100080 / Preference pair construction / Member archive

Preference pairs: pair weights remain unnormalized · case 05

pair weights remain unnormalized.

Member previewVariant 5 · 3 implementations · 6 checks per implementation

Case contract

Input weights are nonnegative integers; return each positive weight divided by their positive sum as exact fractions [numerator,denominator], or [] if none are positive.

Why this case matters

A small deterministic preference-data transform makes pair semantics inspectable without a training framework.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
unequal weights	`[[5, 1], [10, 1]]`	`[[1, 3], [2, 3]]`	Failed

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

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