Buggy python submission (verdict: Runtime Error):
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    if M == 1:
        return 1
    
    hw = [0] * H
    wh = [0] * W
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h] += 1
        wh[w] += 1
    
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((sum(hw[i]), i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((sum(wh[i]), i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])

    w_max = w_list[0][0]
    w_idx_list = []
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
    
    cnt = 1
    for i in range(len(h_idx_list)):
        for j in range(len(w_idx_list)):
            if hw[h_idx_list[i] - 1][w_idx_list[j] - 1] != 1:
                cnt = 0
                break
    return w_max + h_max - cnt

if __name__ == '__main__':
    print(main())

Fixed submission:
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    if M == 1:
        return 1
    
    hw = [0] * H
    wh = [0] * W
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h-1] += 1
        wh[w-1] += 1
    
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((hw[i], i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((wh[i], i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    check_h = [0] * H
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])
        check_h[h_list[i][1]-1] = 1

    w_max = w_list[0][0]
    w_idx_list = []
    check_w = [0] * W
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
        check_w[w_list[i][1]-1] = 1
    
    cnt = 0
    for [h, w] in bombs:
        if check_h[h-1] == 1 and check_w[w-1] == 1:
            cnt += 1
    return h_max + w_max if cnt != len(h_idx_list) * len(w_idx_list) else h_max + w_max - 1

if __name__ == '__main__':
    print(main())

Buggy python submission (verdict: Runtime Error):
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    if M == 1:
        return 1
    
    hw = [[0] * W for i in range(H)]
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h - 1][w - 1] = 1
    
    wh = [list(x) for x in zip(*hw)]
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((sum(hw[i]), i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((sum(wh[i]), i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])

    w_max = w_list[0][0]
    w_idx_list = []
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
    
    cnt = 1
    for i in range(len(h_idx_list)):
        for j in range(len(w_idx_list)):
            if hw[h_idx_list[i] - 1][w_idx_list[j] - 1] != 1:
                cnt = 0
                break
    return w_max + h_max - cnt

if __name__ == '__main__':
    print(main())

Fixed submission:
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    if M == 1:
        return 1
    
    hw = [0] * H
    wh = [0] * W
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h-1] += 1
        wh[w-1] += 1
    
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((hw[i], i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((wh[i], i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    check_h = [0] * H
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])
        check_h[h_list[i][1]-1] = 1

    w_max = w_list[0][0]
    w_idx_list = []
    check_w = [0] * W
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
        check_w[w_list[i][1]-1] = 1
    
    cnt = 0
    for [h, w] in bombs:
        if check_h[h-1] == 1 and check_w[w-1] == 1:
            cnt += 1
    return h_max + w_max if cnt != len(h_idx_list) * len(w_idx_list) else h_max + w_max - 1

if __name__ == '__main__':
    print(main())

Buggy python submission (verdict: Runtime Error):
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    if M == 1:
        return 1
    
    hw = [[0] * W for i in range(H)]
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h - 1][w - 1] = 1
    
    wh = [list(x) for x in zip(*hw)]
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((sum(hw[i]), i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((sum(wh[i]), i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])

    w_max = w_list[0][0]
    w_idx_list = []
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
    
    cnt = 1
    for i in range(len(h_idx_list)):
        for j in range(len(w_idx_list)):
        if hw[h_idx_list[i] - 1][w_idx_list[j] - 1] != 1:
            cnt = 0
            break
    return w_max + h_max - cnt

if __name__ == '__main__':
    print(main())

Fixed submission:
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    if M == 1:
        return 1
    
    hw = [0] * H
    wh = [0] * W
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h-1] += 1
        wh[w-1] += 1
    
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((hw[i], i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((wh[i], i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    check_h = [0] * H
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])
        check_h[h_list[i][1]-1] = 1

    w_max = w_list[0][0]
    w_idx_list = []
    check_w = [0] * W
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
        check_w[w_list[i][1]-1] = 1
    
    cnt = 0
    for [h, w] in bombs:
        if check_h[h-1] == 1 and check_w[w-1] == 1:
            cnt += 1
    return h_max + w_max if cnt != len(h_idx_list) * len(w_idx_list) else h_max + w_max - 1

if __name__ == '__main__':
    print(main())

Buggy python submission (verdict: Runtime Error):
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    hw = [[0] * W for i in range(H)]
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h - 1][w - 1] = 1
    
    wh = [list(x) for x in zip(*hw)]
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((sum(hw[i]), i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((sum(wh[i]), i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])

    w_max = w_list[0][0]
    w_idx_list = []
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
    
    cnt = 1
    return w_max + h_max - cnt

if __name__ == '__main__':
    print(main())

Fixed submission:
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    if M == 1:
        return 1
    
    hw = [0] * H
    wh = [0] * W
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h-1] += 1
        wh[w-1] += 1
    
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((hw[i], i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((wh[i], i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    check_h = [0] * H
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])
        check_h[h_list[i][1]-1] = 1

    w_max = w_list[0][0]
    w_idx_list = []
    check_w = [0] * W
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
        check_w[w_list[i][1]-1] = 1
    
    cnt = 0
    for [h, w] in bombs:
        if check_h[h-1] == 1 and check_w[w-1] == 1:
            cnt += 1
    return h_max + w_max if cnt != len(h_idx_list) * len(w_idx_list) else h_max + w_max - 1

if __name__ == '__main__':
    print(main())

Buggy python submission (verdict: Runtime Error):
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    hw = [[0] * W for i in range(H)]
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h - 1][w - 1] = 1
    
    wh = [list(x) for x in zip(*hw)]
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((sum(hw[i]), i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((sum(wh[i]), i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])

    w_max = w_list[0][0]
    w_idx_list = []
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
    
    cnt = 1
    for i in range(len(h_idx_list)):
        for j in range(len(w_idx_list)):
            if hw[h_idx_list[i] - 1][w_idx_list[j] - 1] != 1:
                cnt = 0
                break
    return w_max + h_max - cnt

if __name__ == '__main__':
    print(main())

Fixed submission:
def main():
    H, W, M = map(int, input().split())
    bombs = [list(map(int, input().split())) for i in range(M)]
    
    if M == 1:
        return 1
    
    hw = [0] * H
    wh = [0] * W
    
    for i in range(len(bombs)):
        [h, w] = bombs[i]
        hw[h-1] += 1
        wh[w-1] += 1
    
    hw_tuple_list = []
    for i in range(len(hw)):
        hw_tuple_list.append((hw[i], i+1))
    
    wh_tuple_list = []
    for i in range(len(wh)):
        wh_tuple_list.append((wh[i], i+1))

    h_list = sorted(hw_tuple_list, reverse = True)
    w_list = sorted(wh_tuple_list, reverse = True)

    h_max = h_list[0][0]
    h_idx_list = []
    check_h = [0] * H
    for i in range(len(h_list)):
        if h_max > h_list[i][0]:
            break
        h_idx_list.append(h_list[i][1])
        check_h[h_list[i][1]-1] = 1

    w_max = w_list[0][0]
    w_idx_list = []
    check_w = [0] * W
    for i in range(len(w_list)):
        if w_max > w_list[i][0]:
            break
        w_idx_list.append(w_list[i][1])
        check_w[w_list[i][1]-1] = 1
    
    cnt = 0
    for [h, w] in bombs:
        if check_h[h-1] == 1 and check_w[w-1] == 1:
            cnt += 1
    return h_max + w_max if cnt != len(h_idx_list) * len(w_idx_list) else h_max + w_max - 1

if __name__ == '__main__':
    print(main())