adventofcode/2021/08/part1.mjs

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2021-12-08 17:45:55 +00:00
import fs from "fs-extra";
import fp from "lodash/fp.js";
import _ from "lodash";
export const digits = {
0: 'abcefg', // 6
1: 'cf', // 2
2: 'acdeg', // 5
3: 'acdfg', // 5
4: 'bcdf', // 4
5: 'abdfg', // 5
6: 'abdefg', // 6
7: 'acf', // 3
8: 'abcdefg',// 7
9: 'abcdfg', // 6
}
export const processInput = (lines) => {
return lines.split("\n").filter(x=>x).map( line => {
let [ input, output ] = line.split(' | ').map(
x => x.split(' ').map( x => x.split('').sort() )
);
return {input, output};
}
)
};
/** @return {number} */
export function solution(lines) {
return lines.map(fp.get('output')).flat().filter(
x => [2,4,3,7].includes(x.length )
).length
}