day two part two

02/code.js

@@ -1,10 +1,10 @@
 import { readFileSync } from 'node:fs';
 
-//const inputArray = readFileSync('sample.txt').toString().split(",");
+// 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) {
@@ -22,17 +22,44 @@ for (const element of inputArray) {
     }
   }
 }
-
+console.timeEnd("part1");
 console.log(sum);
 
 
 // Part Two
 
+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

03/code.js

@@ -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

day-template/code.js

@@ -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