Day11 2024 finished

Author: ZoltePudeleczko

2024/inputs/day11

@@ -0,0 +1 @@
+1117 0 8 21078 2389032 142881 93 385

2024/inputs/day11_ex

@@ -0,0 +1 @@
+125 17

2024/src/day11.py

@@ -0,0 +1,47 @@
+from common import *
+
+DAY_NUMBER = 11
+USE_EXAMPLE = False
+
+
+with get_data(DAY_NUMBER, USE_EXAMPLE) as f:
+    starting_stones = [int(i) for i in f.readline().strip().split()]
+    stones_count = {}
+    for i in starting_stones:
+        stones_count[i] = stones_count.get(i, 0) + 1
+
+
+def blink(stones):
+    new_stones = {}
+    for key, value in stones.items():
+        if key == 0:
+            new_stones[1] = new_stones.get(1, 0) + value
+        elif len(str(key)) % 2 == 0:
+            left = int(str(key)[: len(str(key)) // 2])
+            right = int(str(key)[len(str(key)) // 2 :])
+            new_stones[left] = new_stones.get(left, 0) + value
+            new_stones[right] = new_stones.get(right, 0) + value
+        else:
+            new_stones[key * 2024] = new_stones.get(key * 2024, 0) + value
+
+    return new_stones
+
+
+def part_one():
+    stones = stones_count.copy()
+    for _ in range(25):
+        stones = blink(stones)
+
+    return sum(stones.values())
+
+
+def part_two():
+    stones = stones_count.copy()
+    for _ in range(75):
+        stones = blink(stones)
+
+    return sum(stones.values())
+
+
+print_result(DAY_NUMBER, 1, part_one())
+print_result(DAY_NUMBER, 2, part_two())