modamo.xyz
+39
day06/part1.ts
+39
day06/part1.ts
···
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import { readFileSync } from "fs";
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const input = readFileSync("./input.txt", "utf8")
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.split(/\n/)
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.map((line) => line.trim().split(/\s+/));
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const mathProblems = new Array(input[0].length)
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.fill(null)
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.map((n) => [] as (number | string)[]);
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for (let i = 0; i < input.length; i++) {
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for (let j = 0; j < input[i].length; j++) {
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mathProblems[j].push(input[i][j]);
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}
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}
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for (let i = 0; i < mathProblems.length; i++) {
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mathProblems[i] = [
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...mathProblems[i].slice(0, mathProblems[i].length - 1).map(Number),
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mathProblems[i][mathProblems[i].length - 1]
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];
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}
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let answersSum = 0;
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for (const mathProblem of mathProblems) {
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answersSum +=
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mathProblem[mathProblem.length - 1] === "+"
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? (mathProblem.slice(0, mathProblem.length - 1) as number[]).reduce(
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(a, c) => a + c,
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0
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)
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: (mathProblem.slice(0, mathProblem.length - 1) as number[]).reduce(
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(a, c) => a * c,
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1
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);
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}
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console.log(answersSum);