From 5a7f354eadd672f0690607f7d69329b6c333fc2f Mon Sep 17 00:00:00 2001
From: x0x7 <x0x7@tutanota.com>
Date: Sun, 1 Dec 2024 08:50:53 -0500
Subject: [PATCH] Add 2024/day1/part2.js

---
 2024/day1/part2.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 2024/day1/part2.js

diff --git a/2024/day1/part2.js b/2024/day1/part2.js
new file mode 100644
index 0000000..0c52cd3
--- /dev/null
+++ b/2024/day1/part2.js
@@ -0,0 +1,19 @@
+#!/usr/bin/env node
+
+const list1=[];
+const list2=[];
+
+require('fs').readFileSync('input.txt','utf8').split('\n').filter(i=>i).forEach(line=>{
+ const parts = line.split('   ').map(i=>parseInt(i));
+ list1.push(parts[0]);
+ list2.push(parts[1]);
+});
+
+const counts = require('lodash').countBy(list2);
+
+var absurdscore=0;
+for(let num of list1) {
+ absurdscore+=num*(counts[num]||0);
+}
+
+console.log('Result:',absurdscore);
\ No newline at end of file