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Challenge 2 - Crossing Logic
EasyOrderbookMatching2 / 12

Challenge 2: Crossing Logic

A match can happen only when prices cross.

Task

Implement crosses.

Rules

  • Buy/taker bid crosses maker ask if bid_price >= ask_price.
  • Sell/taker ask crosses maker bid if ask_price <= bid_price.

This is the central predicate used by limit orders, post-only orders, and IOC orders.

LanguageRust
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    Challenge 2 - Crossing Logic · ORDERBOOK Exercise | learn.sol