add 2025

2025/3.2.ts

@@ -0,0 +1,31 @@
+import { open } from 'node:fs/promises';
+
+
+const file = await open('./2025/inputs/3');
+let count = 0
+for await (const line of file.readLines()) {
+    count += findPair(line.split("").map(Number))
+}
+
+
+function findPair(numbs: Array<number>) {
+    let result = ''
+    for (var i = 12; i > 0; i--) {
+        const max = findDigit(numbs, i)
+        const maxIndex = numbs.indexOf(max)
+        numbs = numbs.slice(maxIndex + 1)
+        result += max
+        result
+    }
+
+    return Number(result)
+}
+
+function findDigit(numbs: Array<number>, pow: number) {
+    if (pow != 1) {
+        numbs = numbs.slice(0, -(pow - 1))
+    }
+    const max = Math.max(...numbs)
+    return max
+}
+console.log(count)