FA-12730 / Auction allocation rules / Member archive

Marginal pro-rata allocation loses residual units · case 05

Marginal pro-rata allocation loses residual units.

Member previewVariant 5 · 3 implementations · 7 checks per implementation

Case contract

For positive integer requests and capacity between zero and their sum, floor proportional shares then give one remaining unit to each largest fractional remainder, breaking ties by input order. Empty requests require zero capacity.

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
largest remainder is not first	`[0, 1]`	`[1, 1]`	Failed

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