8 lines
189 B
JavaScript
8 lines
189 B
JavaScript
function day1(input, part2) {
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return input.split`\n`.num().count((e, i, a, k = a[i - (part2 ? 3 : 1)]) => k && e > k)
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}
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if (typeof window == "undefined") {
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module.exports = day1
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}
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