add solution for 2022/11 part a

Author: SH1RL0CK

2022/11.py

@@ -0,0 +1,54 @@
+from dataclasses import dataclass
+
+from aocd.models import Puzzle
+
+puzzle = Puzzle(2022, 11)
+input_data = puzzle.input_data.split("\n\n")
+
+
+@dataclass(order=True)
+class Monkey:
+    items: list[int]
+    operation: str
+    divisible_by: int
+    if_true: int
+    if_false: int
+    inspected_items: int = 0
+
+
+def parse():
+    monkeys = []
+    for monkey in input_data:
+        monkey = monkey.splitlines()
+        monkeys.append(
+            Monkey(
+                items=[int(i) for i in monkey[1].split(":")[1].split(", ")],
+                operation=monkey[2].split("= ")[1],
+                divisible_by=int(monkey[3].split("by ")[1]),
+                if_true=int(monkey[4][-1]),
+                if_false=int(monkey[5][-1]),
+            )
+        )
+    return monkeys
+
+
+def part_a():
+    monkeys: list[Monkey] = parse()
+    for round in range(20):
+        for monkey in monkeys:
+            for item in monkey.items:
+                monkey.inspected_items += 1
+                old = item
+                item = eval(monkey.operation) // 3
+                if item % monkey.divisible_by == 0:
+                    monkeys[monkey.if_true].items.append(item)
+                else:
+                    monkeys[monkey.if_false].items.append(item)
+            monkey.items = []
+        print(round)
+    monkeys.sort(key=lambda m: m.inspected_items, reverse=True)
+    return monkeys[0].inspected_items * monkeys[1].inspected_items
+
+
+if __name__ == "__main__":
+    puzzle.answer_a = part_a()