2024-12-07: part one: solution code and sample data

jayaddison · jayaddison · commit 2cffbf89b63c · 2024-12-07T15:48:27.000Z
diff --git a/2024/07/07.py b/2024/07/07.py
@@ -0,0 +1,21 @@
+import itertools
+import sys
+
+operators = {
+    '*': int.__mul__,
+    '+': int.__add__,
+}
+
+result = 0
+for line in sys.stdin.read().splitlines():
+    output, _, inputs = line.partition(': ')
+    output, inputs = int(output), list(map(int, inputs.split()))
+    procedures = itertools.product(operators.keys(), repeat=len(inputs) - 1)
+    for procedure in procedures:
+        evaluation = inputs[0]
+        for input, operation in zip(inputs[1:], procedure):
+            evaluation = operators[operation](evaluation, input)
+        if evaluation == output:
+            result += output
+            break
+print(result)
diff --git a/2024/07/07.txt b/2024/07/07.txt
@@ -0,0 +1,9 @@
+190: 10 19
+3267: 81 40 27
+83: 17 5
+156: 15 6
+7290: 6 8 6 15
+161011: 16 10 13
+192: 17 8 14
+21037: 9 7 18 13
+292: 11 6 16 20
