adventofcode/2021/06/part1.mjs
2021-12-06 11:26:18 -05:00

23 lines
552 B
JavaScript

import fs from "fs-extra";
import fp from "lodash/fp.js";
import _ from "lodash";
export const processInput = (input) =>
input.split(',').map( x => parseInt(x) );
export function solution(input,days = 80) {
let fish = Array.from({length:8}, ()=>0);
input.forEach( x => fish[x]++ );
for( let i = 0; i< days; i++ ) {
const breeders = fish.shift();
if(breeders ) {
fish[8] = breeders;
fish[6] = (fish[6] || 0) + breeders;
}
// console.log(fish);
}
return _.sum(fish);
};