From 8f6ca57372beee032547e64ae700a363f23d97d0 Mon Sep 17 00:00:00 2001
From: Chris <christopher@ezekia.com>
Date: Wed, 11 Dec 2024 15:37:44 +0000
Subject: [PATCH] Day 11

---
 2024/11/index.ts | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/2024/11/index.ts b/2024/11/index.ts
index b2dc384..f80a96f 100644
--- a/2024/11/index.ts
+++ b/2024/11/index.ts
@@ -4,9 +4,11 @@ const input = fs.readFileSync(__dirname + '/input.txt', 'utf8');
 
 let stones: Array<string> = input.slice(0, -1).split(' ');
 
+const countMap: { [key: string]: Array<number> } = {};
+
 let sum = 0;
 
-function splitStones(stones: Array<string>) {
+function getCountAfter(stone: string, blink: number) {
     const newStones: Array<string> = [];
     stones.forEach((stone) => {
         if (stone === '0') {
@@ -22,16 +24,17 @@ function splitStones(stones: Array<string>) {
         }
         newStones.push(''+(parseInt(stone) * 2024));
     });
-    return newStones;
+    if (blink === 1) {
+        return newStones;
+    }
+    return newStones.sum((newStone) => getCountAfter(newStone, blink - 1));
 }
 
-let newStones = stones;
-
 const blinks = 25;
 
-for (let i = 0; i < blinks; i++) {
-    newStones = splitStones(newStones);
-}
+stones.forEach((stone) => {
+    sum += getCountAfter(stone, 25);
+});
 
-console.log(newStones.length);
+console.log(sum);