43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
import * as R from "remeda";
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import { readFile } from "../05/part1.js";
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const readInput = (...args) =>
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R.pipe(
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readFile(...args),
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(lines) => lines.split("\n\n"),
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R.compact, // remove last line
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R.map((block) => block.split("\n").map((line) => eval(line)))
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);
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export const puzzleInput = readInput(import.meta.url, "input");
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export const sample = readInput(import.meta.url, "sample");
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export function isLessThan(x, y) {
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if ([x, y].every(R.isNumber)) return x < y ? -1 : x == y ? 0 : 1;
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if ([x, y].every(R.isArray)) {
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for (const [a, b] of R.zip(x, y)) {
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const res = isLessThan(a, b);
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if (res !== 0) return res;
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}
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if (x.length === y.length) return 0;
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return x.length < y.length ? -1 : 1;
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}
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return isLessThan(...[x, y].map((z) => (R.isNumber(z) ? [z] : z)));
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}
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const passthru = (x) => (arg) => {
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x(arg);
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return arg;
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};
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export default R.createPipe(
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R.map(([x, y]) => isLessThan(x, y)),
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(results) => results.map((value, index) => ({ value, index: index + 1 })),
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R.filter(({ value }) => value !== 1),
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R.map(R.prop("index")),
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(results) => results.reduce((a, b) => a + b)
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);
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