내 풀이

def solution(sizes):
    answer = 0
    w_max, h_max = 0, 0

    for w, h in sizes:
        if h > w:
            h, w = w, h
        if w_max < w:
            w_max = w
        if h_max < h:
            h_max = h

    return w_max * h_max
AND