d11 p1

inputs/11.txt

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+3279 998884 1832781 517 8 18864 28 0

src/11.ts

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+function solution(input: string): { part1: string; part2: string } {
+  let result1 = 0;
+  let result2 = 0;
+
+  const lines = input.split(" ");
+  const totalBlinkAmount = 25;
+  let stones: string[] = [...lines];
+
+  for (let i = 0; i < totalBlinkAmount; i++) {
+    stones = stones.flatMap((line) => {
+      if (line === "0") {
+        return "1";
+      }
+      if (line.length % 2 === 0) {
+        const half = line.length / 2;
+        const firstHalf = line.slice(0, half);
+        const secondHalf = line.slice(half);
+        return [Number(firstHalf).toString(), Number(secondHalf).toString()];
+      }
+      return (Number(line) * 2024).toString();
+    });
+  }
+
+  result1 = stones.length;
+
+  return {
+    part1: result1.toString(),
+    part2: result2.toString(),
+  };
+}
+
+export default solution;

test/11.test.ts

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+import { expect, test, describe } from "bun:test";
+import solution from "../src/11";
+
+const EXAMPLE_1 = `125 17`;
+const RESULT_1 = "55312";
+
+const EXAMPLE_2 = EXAMPLE_1;
+const RESULT_2 = "31";
+
+describe("Day 11", () => {
+  test("Part 1", () => {
+    const result = solution(EXAMPLE_1);
+    expect(result.part1).toBe(RESULT_1);
+  });
+
+  test("Part 2", () => {
+    const result = solution(EXAMPLE_2);
+    expect(result.part2).toBe(RESULT_2);
+  });
+});