day_24a.py

#!/usr/bin/python3


def getCooordinatesFromPath(path):
    i = 0
    x = 0
    y = 0
    while i < len(path):
        if path[i] == "e":
            x = x + 2
            i = i + 1
        elif path[i] == "w":
            x = x - 2
            i = i + 1
        elif path[i : i + 2] == "nw":
            x = x - 1
            y = y + 1
            i = i + 2
        elif path[i : i + 2] == "ne":
            x = x + 1
            y = y + 1
            i = i + 2
        elif path[i : i + 2] == "sw":
            x = x - 1
            y = y - 1
            i = i + 2
        elif path[i : i + 2] == "se":
            x = x + 1
            y = y - 1
            i = i + 2
    return x, y


def main():
    f = open("../input/day_24_input")
    isWhiteUp = dict()
    for path in f:
        path = path.strip("\n")
        x, y = getCooordinatesFromPath(path)
        coord = (x, y)
        if coord in isWhiteUp:
            isWhiteUp[coord] = not isWhiteUp[coord]
        else:
            isWhiteUp[coord] = False
    count = 0
    for key in isWhiteUp:
        if not isWhiteUp[key]:
            count = count + 1
    print(count)
    return count


if __name__ == "__main__":
    main()