aoc/2018/8/part1.js
2018-12-09 00:37:33 +00:00

22 lines
566 B
JavaScript

const fs = require('fs');
const input = fs.readFileSync('input.txt', 'utf-8').split('\n')[0].split(' ').map(Number);
function parse(arr) {
if (arr[0] == 0) {
debugger;
return ([2 + arr[1], arr.slice(2, 2 + arr[1])]);
}
let meta = []
let pointer = 2;
for (let i = 0; i < arr[0]; i++) {
let child = parse(arr.slice(pointer, arr.length));
pointer += child[0];
meta = meta.concat(child[1]);
}
meta = meta.concat(arr.slice(pointer, pointer + arr[1]))
return [pointer + arr[1], meta];
}
let v = parse(input)[1];
console.log(v.reduce((a, b) => a + b));