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| <!DOCTYPE html> | |
| <html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> | |
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| body { | |
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| # | |
| # FP solve the Change Problem | |
| # eg. myChange = calcChange(cost, myPayment) | |
| # | |
| # Used in fold() to build change object | |
| # Should be nested in calcChange, but is lifted for cleanliness | |
| coinAccStructure = (acc, coinValue) -> | |
| amountRemaining = acc["remaining"] | |
| acc[coinValue] = Math.floor(amountRemaining / coinValue) |