2024(5): I was too quick to dismiss this for another time :D

I quickly realised what I had done.

2024/5/puzzle1.py

@@ -45,7 +45,7 @@ def is_update_legal(update, rules) -> bool:
 	return True
 
 def middle_page_num(update) -> int:
-	return len(update) // 2
+	return update[len(update) // 2]
 
 if __name__ == "__main__":
 	rules, updates = load_input()