Add day 4

Author: LiquidFun

2023/04/04.py

@@ -0,0 +1,13 @@
+from sys import stdin
+
+lines = stdin.read().strip().split("\n")
+p = 0
+repeat = [1] * len(lines)
+for i, line in enumerate(lines):
+    right, left = line.split(":")[1].split("|")
+    shared = len(set(right.split()) & set(left.split()))
+    if shared:
+        p += 2**(shared - 1)
+        for j in range(i+1, min(i+1+shared, len(lines))):
+            repeat[j] += repeat[i]
+print(p, sum(repeat), sep='\n')

README.md

@@ -4,7 +4,7 @@
 
 <!-- AOC TILES BEGIN -->
 <h1 align="center">
-  2023 - 6 ⭐
+  2023 - 8 ⭐
 </h1>
 <a href="2023/01/01.py">
   <img src="Media/2023/01.png" width="161px">
@@ -15,6 +15,9 @@
 <a href="2023/03/03.py">
   <img src="Media/2023/03.png" width="161px">
 </a>
+<a href="2023/04/04.py">
+  <img src="Media/2023/04.png" width="161px">
+</a>
 <h1 align="center">
   2022 - 50 ⭐
 </h1>