Ace the Rust Interview

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Deterministic maps for consensus

chain-determinism-01Related book chapters: 30 (optional — this page is complete on its own)BTreeMapdeterminism

Slug: chain-determinism-01 · Paired reading: Chapter 30

Prompt

fn fingerprint_balances(balances: &BTreeMap<u8, u128>) -> u128 — rolling XOR/hash over sorted iteration. Also fn sorted_keys to show BTreeMap order is part of the contract.