feat(cpp): add cash register example with greedy change + integer cents#382
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syedk03 wants to merge 1 commit intodiwas7777:mainfrom
Open
feat(cpp): add cash register example with greedy change + integer cents#382syedk03 wants to merge 1 commit intodiwas7777:mainfrom
syedk03 wants to merge 1 commit intodiwas7777:mainfrom
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Summary
Adds a cash register example that returns {status, change} from price, cash, and cid. Uses greedy change with integer cents to avoid floating-point error. Produces OPEN, CLOSED, or INSUFFICIENT_FUNDS and a denomination breakdown.
Test/Demo cases
19.50 → 20.00 with quarters available → OPEN, [["QUARTER", 0.5]]
Exact drain drawer → CLOSED, change equals original cid
Not enough composition → INSUFFICIENT_FUNDS, []
Notes
Clear comments explaining the approach and edge cases.
No external dependencies; simple compile/run (C++) or node (JS).
Issue
Closes #378.