11: Solve in Python

11/input

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+Monkey 0:
+  Starting items: 61
+  Operation: new = old * 11
+  Test: divisible by 5
+    If true: throw to monkey 7
+    If false: throw to monkey 4
+
+Monkey 1:
+  Starting items: 76, 92, 53, 93, 79, 86, 81
+  Operation: new = old + 4
+  Test: divisible by 2
+    If true: throw to monkey 2
+    If false: throw to monkey 6
+
+Monkey 2:
+  Starting items: 91, 99
+  Operation: new = old * 19
+  Test: divisible by 13
+    If true: throw to monkey 5
+    If false: throw to monkey 0
+
+Monkey 3:
+  Starting items: 58, 67, 66
+  Operation: new = old * old
+  Test: divisible by 7
+    If true: throw to monkey 6
+    If false: throw to monkey 1
+
+Monkey 4:
+  Starting items: 94, 54, 62, 73
+  Operation: new = old + 1
+  Test: divisible by 19
+    If true: throw to monkey 3
+    If false: throw to monkey 7
+
+Monkey 5:
+  Starting items: 59, 95, 51, 58, 58
+  Operation: new = old + 3
+  Test: divisible by 11
+    If true: throw to monkey 0
+    If false: throw to monkey 4
+
+Monkey 6:
+  Starting items: 87, 69, 92, 56, 91, 93, 88, 73
+  Operation: new = old + 8
+  Test: divisible by 3
+    If true: throw to monkey 5
+    If false: throw to monkey 2
+
+Monkey 7:
+  Starting items: 71, 57, 86, 67, 96, 95
+  Operation: new = old + 7
+  Test: divisible by 17
+    If true: throw to monkey 3
+    If false: throw to monkey 1

11/solution.py

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+#!/usr/bin/env python3
+
+import sys
+from collections import deque
+from copy import deepcopy
+from math import prod
+
+monkeys = []
+
+for l in sys.stdin:
+    l = l.strip()
+    if l.startswith("M"):
+        monkeys.append({})
+        monkeys[-1]["count"] = 0
+    elif l.startswith("S"):
+        monkeys[-1]["items"] = deque(int(x) for x in l[16:].split(", "))
+    elif l.startswith("O"):
+        monkeys[-1]["op"] = l[17:]
+    elif l.startswith("T"):
+        monkeys[-1]["test"] = int(l[19:])
+    elif l.startswith("If t"):
+        monkeys[-1][True] = int(l[25:])
+    elif l.startswith("If f"):
+        monkeys[-1][False] = int(l[26:])
+
+monkeysG = deepcopy(monkeys)
+
+for it in range(20):
+    for m in monkeys:
+        while len(m["items"]):
+            m["count"] += 1
+            old = m["items"].popleft()
+            new = eval(m["op"]) // 3
+            monkeys[m[not (new % m["test"])]]["items"].append(new)
+
+ohmygodihateyoueric = prod(m["test"] for m in monkeys)
+for it in range(10000):
+    for m in monkeysG:
+        while len(m["items"]):
+            m["count"] += 1
+            old = m["items"].popleft()
+            new = eval(m["op"]) % ohmygodihateyoueric
+            monkeysG[m[not (new % m["test"])]]["items"].append(new)
+
+resS = sorted(m["count"] for m in monkeys)[-2:]
+resG = sorted(m["count"] for m in monkeysG)[-2:]
+
+print(f"Silver: {prod(resS)}\nGold: {prod(resG)}")