moved to day11 directory

2024/day11/main.py

@@ -0,0 +1,43 @@
+import functools
+
+with open('input.text', 'r') as file:
+    data: str = file.read()
+
+stones: dict[int, int] = {}
+for n in data.split():
+    n = int(n)
+    if n not in stones:
+        stones[n] = 1
+    else:
+        stones[n] += 1
+
+blinks = 75
+
+@functools.cache
+def process_stone(n: int) -> list[int]:
+
+    if n == 0:
+        return [1]
+    elif (digits := len(str(n))) % 2 == 0:
+        split: int = digits // 2
+        return [int(str(n)[:split]), int(str(n)[split:])]
+    else:
+        return [n * 2024]
+
+def blink(stones: dict[int, int]) -> dict[int, int]:
+    counts: dict[int, int] = {}
+
+    for n, count in stones.items():
+
+        new_stones: list[int] = process_stone(n)
+        for new_stone in new_stones:
+            if new_stone not in counts:
+                counts[new_stone] = count
+            else:
+                counts[new_stone] += count
+
+    return counts
+
+for i in range(blinks):
+    stones = blink(stones)
+    print(i + 1, sum(stones.values()))