advent-of-code/2022/18-Boiling-Boulders/first.js
2022-12-27 22:42:42 +01:00

38 lines
941 B
JavaScript

import * as fs from "fs";
function load(filename) {
return fs.readFileSync(filename, "utf8")
.trim()
.split("\n");
}
let example = load("example");
let input = load("input");
function countSides(cube, input) {
let [x, y, z] = cube.split(",").map(n => parseInt(n));
let count = 6;
if (input.includes([x+1, y, z].join(","))) count--;
if (input.includes([x-1, y, z].join(","))) count--;
if (input.includes([x, y+1, z].join(","))) count--;
if (input.includes([x, y-1, z].join(","))) count--;
if (input.includes([x, y, z+1].join(","))) count--;
if (input.includes([x, y, z-1].join(","))) count--;
return count;
}
function solve(input) {
let count = 0;
input.forEach(cube => {
count += countSides(cube, input);
});
return count;
}
const exampleOutput = solve(example);
if (exampleOutput !== 64) {
console.log("Example failed with " + exampleOutput);
process.exit(1); // eslint-disable-line
}
console.log(solve(input));