day 4

andipaetzold · Dec 4, 2023 · 8e462db · 8e462db
commit 8e462db
Show file tree

Hide file tree

Showing 24 changed files with 3,309 additions and 0 deletions.
diff --git a/01a/index.mjs b/01a/index.mjs
@@ -0,0 +1,14 @@
+import { readFileSync } from "fs";
+
+const input = readFileSync("input1.txt", "utf-8");
+
+let result = 0;
+for (const line of input.split("\n")) {
+  const [_1, first, _2, second = first] = /^[^\d]*(\d)(.*(\d))?[^\d]*$/g.exec(
+    line
+  );
+  const number = `${first}${second}`;
+  result += parseInt(number);
+}
+
+console.log(result);
diff --git a/01a/input0.txt b/01a/input0.txt
@@ -0,0 +1,4 @@
+1abc2
+pqr3stu8vwx
+a1b2c3d4e5f
+treb7uchet