From d43d8c0cf1b7bfbb97208451e6f46b031e522e7d Mon Sep 17 00:00:00 2001 From: Bruno BELANYI Date: Sun, 4 Dec 2022 06:31:43 +0100 Subject: [PATCH] 2022: d04: ex1: add solution --- 2022/d04/ex1/ex1.py | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100755 2022/d04/ex1/ex1.py diff --git a/2022/d04/ex1/ex1.py b/2022/d04/ex1/ex1.py new file mode 100755 index 0000000..8ec60f6 --- /dev/null +++ b/2022/d04/ex1/ex1.py @@ -0,0 +1,24 @@ +#!/usr/bin/env python + +import sys + + +def solve(input: list[str]) -> int: + def is_redundant(line: str) -> bool: + def assignment_to_set(elf: str) -> set[int]: + start, end = elf.split("-") + return set(range(int(start), int(end) + 1)) + + elf1, elf2 = map(assignment_to_set, line.split(",")) + return elf1.issubset(elf2) or elf2.issubset(elf1) + + return sum(map(is_redundant, input)) + + +def main() -> None: + input = sys.stdin.read().splitlines() + print(solve(input)) + + +if __name__ == "__main__": + main()