20 lines
399 B
JavaScript
20 lines
399 B
JavaScript
function day7(input, part2) {
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let crabs = input.split(",").num()
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let max = crabs.max()
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let costs = []
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for (let i = 0; i < max; i++) {
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costs[i] = crabs.map((e) => {
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let dist = Math.abs(e - i)
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return part2 ? dist * (dist + 1) / 2 : dist
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}).sum()
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}
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return costs.min()
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}
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if (typeof window == "undefined") {
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module.exports = day7
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}
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