방문 길이

 

 

 

def solution(dirs):
    px, py = 0, 0
    finished = []

    for i in dirs:
        imsimove = [(px, py)]

        if i == 'U' and px < 5:
            px += 1
        elif i == 'D' and px > -5:
            px -= 1
        elif i == 'R' and py < 5:
            py += 1
        elif i == 'L' and py > -5:
            py -= 1
        else:
            continue

        imsimove.append((px, py))

        if finished.count([imsimove[1],imsimove[0]]) == 0 and finished.count(imsimove) == 0:
            finished.append(imsimove)

    answer = len(finished)
    return answer