solution: 2025/3

Signed-off-by: Alix von Schirp <github@avonschirp.bootmedia.de>

src/2025/3/1/index.ts

@@ -0,0 +1,19 @@
+export default async function runner(inputPath: string){
+  const input = (await Bun.file(inputPath).text()).trimEnd();
+
+  let sum = 0;
+
+  input.split("\n").forEach(line => {
+    let compare = 0;
+    if(line.trim() === "") return;
+    for(let i = 0; i<line.length; i++){
+      for(let j = i+1; j<line.length; j++) {
+        let wip = parseInt(`${line[i]}${line[j]}`)
+        if(wip > compare) compare = wip;
+      }
+    }
+    sum += compare;
+  })
+
+  console.log(sum);
+}

src/2025/3/2/index.ts

@@ -0,0 +1,43 @@
+export default async function runner(inputPath: string){
+  const input = (await Bun.file(inputPath).text()).trimEnd();
+
+  let sum = 0;
+
+  input.split("\n").forEach(line => {
+    let compare = 0;
+    if(line.trim() === "") return;
+
+    let removals = line.length-12;
+    const result: number[] = [];
+    for(let i = 0; i < line.length; i++){
+      const pointed = parseInt(line[i]!);
+      if(removals === 0 || result.length === 0) {
+        result.push(pointed);
+        continue;
+      }
+      while (removals > 0 && result.length > 0 && result[result.length - 1]! < pointed) {
+        result.pop();
+        removals--;
+      }
+      result.push(pointed);
+    }
+
+    const final = result.length===12 ? result.join("") : result.map((value, index) => [index, value])
+      .sort((a, b) => {
+      if (b[1] !== a[1]) {
+        return b[1]! - a[1]!;
+      }
+      return a[0]! - b[0]!;
+    })
+      .slice(0, 12)
+      .sort((a, b) => a[0]! - b[0]!)
+      .map(value => value[1])
+      .join("");
+
+    sum += parseInt(final)
+  })
+
+  console.log()
+  console.log()
+  console.log(sum);
+}