From bf804c482ca9608fe34de9f2c714cd57a920f6b9 Mon Sep 17 00:00:00 2001
From: Aelita4 <kontakt@mikorosa.pl>
Date: Tue, 6 Dec 2022 17:14:03 +0100
Subject: [PATCH] 06_2

---
 day06/index.js | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/day06/index.js b/day06/index.js
index 9dce2ac..b8c8f43 100644
--- a/day06/index.js
+++ b/day06/index.js
@@ -2,26 +2,33 @@ import { readFileSync } from "fs";
 
 const input = readFileSync("datastream.txt", "utf-8");
 
-function checkForDuplicates(arr) {
+function checkForDuplicates(arr, howMany) {
     const map = new Map();
     
     arr.forEach(char => {
         map.set(char, true);
     });
 
-    return map.size === 4;
+    return map.size === howMany;
 }
 
-const arr = ['', '', '', ''];
-let i = 1;
+const arr1 = new Array(4).fill('');
+const arr2 = new Array(14).fill('');
+let i = 1, startOfPacket = 0, startOfMessage = 0;
 
+
+console.log(arr1)
 for(const char of input) {
-    arr.shift()
-    arr.push(char);
+    arr1.shift()
+    arr1.push(char);
+
+    arr2.shift()
+    arr2.push(char);
     
-    if(i > 4 && checkForDuplicates(arr)) break;
+    if(startOfPacket === 0 && i > 4 && checkForDuplicates(arr1, 4)) startOfPacket = i;
+    if(startOfMessage === 0 && i > 14 && checkForDuplicates(arr2, 14)) startOfMessage = i;
     
     i++;
 }
 
-console.log(i);
\ No newline at end of file
+console.log(startOfPacket, startOfMessage);
\ No newline at end of file