35 lines
775 B
TypeScript
35 lines
775 B
TypeScript
import * as fs from "node:fs/promises";
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export async function readFile(filename: string): Promise<number[][]> {
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const lines = await fs
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.readFile(filename, { encoding: "utf8" })
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.then((lines: string) => lines.split(/\n/))
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.then((lines: string[]) =>
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lines.filter((x) => x).map((x) =>
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x.split(/ +/).map((x) => Number(x))
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)
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);
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const l1: number[] = [];
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const l2: number[] = [];
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lines.forEach(([a, b]) => {
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l1.push(a);
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l2.push(b);
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});
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return [l1, l2];
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}
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export function solve(...lists: number[][]) {
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lists.forEach((l) => l.sort());
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let sum = 0;
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for (const i in lists[0]) {
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sum += Math.abs(lists[0][i] - lists[1][i]);
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}
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return sum;
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}
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