def day24_1():
    import re
    from collections import defaultdict

    with open("input24.txt", "r") as file:
        data = file.readlines()

    floor = defaultdict(lambda: False)
    for line in data:
        coords = re.findall(r"e|se|sw|w|nw|ne", line)
        ns = coords.count("se") + coords.count("sw") - coords.count("ne") - coords.count("nw")
        we = coords.count("e") + coords.count("ne") - coords.count("w") - coords.count("sw")

        floor[(ns, we)] = not floor[(ns, we)]

    return sum([v for v in floor.values()])