2015: d02: ex2: add solution

2015/d02/ex2/ex2.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+
+import sys
+
+
+def solve(input: str) -> int:
+    def parse_line(input: str) -> tuple[int, int, int]:
+        x, y, z = map(int, input.split("x"))
+        return x, y, z
+
+    def parse(input: str) -> list[tuple[int, int, int]]:
+        return [parse_line(line) for line in input.splitlines()]
+
+    def ribbon(x: int, y: int, z: int) -> int:
+        bow = x * y * z
+        return 2 * min(x + y, y + z, z + x) + bow
+
+    presents = parse(input)
+    return sum(ribbon(*present) for present in presents)
+
+
+def main() -> None:
+    input = sys.stdin.read()
+    print(solve(input))
+
+
+if __name__ == "__main__":
+    main()