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fix: target without divisor denoms is no shortcut condition

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siiky 2025-01-31 13:19:05 +00:00
parent f846f7e8cc
commit 8abbc792f6
1 changed files with 1 additions and 6 deletions
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7
lib/coin-change.js
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@ -24,11 +24,6 @@ const prepare_denominations = denominations =>
const max_denomination_multiplicity = (denom, count, target) => const max_denomination_multiplicity = (denom, count, target) =>
Math.min(count, Math.floor(target / denom)) Math.min(count, Math.floor(target / denom))
const has_divisor = (didx, denominations, target) =>
denominations
.slice(didx)
.some(({ denom }) => (target % denom) === 0)
/* /*
* @returns null if there's no solution set; * @returns null if there's no solution set;
* false if there's no solution; * false if there's no solution;
@ -78,7 +73,7 @@ const solve = (model, target) => {
* of the denominations, or if the target is not divisible by any of the * of the denominations, or if the target is not divisible by any of the
* denominations * denominations
*/ */
if (target > csum || !has_divisor(didx, denominations, target)) if (target > csum)
return memo_set(memo, target, denom, false) return memo_set(memo, target, denom, false)
let solution = memo_get(memo, target, denom) let solution = memo_get(memo, target, denom)