add aoc2023

1 files changed, 43 insertions, 0 deletions

diff --git a/aoc_2023/day0/main_2.js b/aoc_2023/day0/main_2.js
new file mode 100644
index 0000000..3ba05be
--- /dev/null
+++ b/aoc_2023/day0/main_2.js
@@ -0,0 +1,43 @@
+const fs = require("node:fs");
+
+const digits = {
+  one: 1,
+  two: 2,
+  three: 3,
+  four: 4,
+  five: 5,
+  six: 6,
+  seven: 7,
+  eight: 8,
+  nine: 9,
+};
+
+const data = fs.readFileSync("input.txt", "utf8");
+
+const res = data
+  .split("\n")
+  .filter((line) => line && line != "")
+  .map((line) => {
+    let newLine = "";
+    for (let i = 0; i < line.length; i++) {
+      for (let j = i + 1; j < line.length + 1; j++) {
+        const word = line.substring(i, j);
+        if (word.match(/^[0-9]$/)) {
+          newLine += word;
+        }
+        if (word in digits) {
+          newLine += digits[word].toString();
+        }
+      }
+    }
+    return newLine;
+  })
+  .reduce((acc, line) => {
+    const nums = line.split("");
+    const first = parseInt(nums.at(0));
+    const last = parseInt(nums.at(-1));
+
+    return acc + (first * 10 + last);
+  }, 0);
+
+console.log(res);