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compare: eric:06de865c1294c3c722b2c110061f3ad04b04c3b6
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2 Commits
a466e30de5 ... 06de865c12

Author SHA1 Message Date
Eric Wagoner
06de865c12 day two part two 2025-12-02 12:56:37 -05:00
Eric Wagoner
26d828fe1a day two part one 2025-12-02 09:54:27 -05:00
3 changed files with 56 additions and 12 deletions
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56
02/code.js
View File

@@ -1,25 +1,65 @@
import { readFileSync } from 'node:fs';
const inputArray = readFileSync('sample.txt').toString().split("\n");
// const inputArray = readFileSync('input.txt').toString().split("\n");
// const inputArray = readFileSync('sample.txt').toString().split(",");
const inputArray = readFileSync('input.txt').toString().split(",");
// Part One
console.time("part1");
let sum = 0;
for (const element of inputArray) {
const contents = element.split(" ");
const contents = element.split("-");
const start = Number.parseInt(contents[0]);
const end = Number.parseInt(contents[1]);
for (let sku = start; sku <= end; sku++) {
const skuString = sku.toString();
const digits = skuString.length
if (digits % 2 === 0) {
if (skuString.slice(0, digits / 2) === skuString.slice(digits / 2)) {
sum += sku;
}
}
}
}
console.log();
console.timeEnd("part1");
console.log(sum);
// Part Two
for (const element of inputArray) {
const contents = element.split(" ");
console.time("part2");
let sum2 = 0;
const repeats = [];
for (const element of inputArray) {
const contents = element.split("-");
const start = Number.parseInt(contents[0]);
const end = Number.parseInt(contents[1]);
for (let sku = start; sku <= end; sku++) {
const skuString = sku.toString();
const digits = skuString.length
const maxRepeatLength = Math.floor(digits / 2);
for (let repeatLength = 1; repeatLength <= maxRepeatLength; repeatLength++) {
if (digits % repeatLength === 0) {
const maxRepeats = digits / repeatLength;
const repeatPattern = skuString.slice(0, repeatLength);
const repeatedPattern = repeatPattern.repeat(maxRepeats);
if (repeatedPattern === skuString) {
repeats.push(sku);
}
}
}
}
}
console.log();
const uniqueRepeats = [...new Set(repeats)];
for (const repeat of uniqueRepeats) {
sum2 += Number.parseInt(repeat);
}
console.timeEnd("part2");
console.log(sum2);
// functions

7
03/code.js
View File

@@ -4,22 +4,23 @@ const inputArray = readFileSync('sample.txt').toString().split("\n");
// const inputArray = readFileSync('input.txt').toString().split("\n");
// Part One
console.time("part1");
for (const element of inputArray) {
const contents = element.split(" ");
}
console.timeEnd("part1");
console.log();
// Part Two
console.time("part2");
for (const element of inputArray) {
const contents = element.split(" ");
}
console.log();
console.timeEnd("part2");
// functions

5
day-template/code.js
View File

@@ -5,21 +5,24 @@ const inputArray = readFileSync('sample.txt').toString().split("\n");
// Part One
console.time("part1");
for (const element of inputArray) {
const contents = element.split(" ");
}
console.timeEnd("part1");
console.log();
// Part Two
console.time("part2");
for (const element of inputArray) {
const contents = element.split(" ");
}
console.log();
console.timeEnd("part2");
// functions