FA-12698 / Auction allocation rules / Member archive

Uniform unit pricing reads the last winner instead of the first loser · case 03

Uniform unit pricing reads the last winner instead of the first loser.

Member previewVariant 3 · 3 implementations · 7 checks per implementation

Case contract

Each integer bid requests one unit. For positive supply, return the first excluded bid as uniform payment, or zero if demand does not exceed supply. Zero supply returns None.

Why this case matters

Deterministic teaching model for reviewing auction allocation software; not a representation of any venue or financial advice.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
interior cutoff	`20`	`10`	Failed

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