버전은 2.7.8 사용중입니다. IDLE, ideone에서는 별다른 에러없이 success하는데 알고스팟에서 채점을 하면 nonzero return code 라는 에러를 띄우네요. 해결 방법이 어떻게 될까요 ㅜㅜ?

#hasWord : find word
dx = [-1, -1, -1, 1, 1, 1, 0, 0]
dy = [-1, 0, 1, -1, 0, 1, -1, 1]
board_matrix = [[0 for col in range(5)] for row in range(5)]
def hasWord(y, x, dic):
    global board_matrix
    if(y == 5 or x == 5): return False
    if(board_matrix[y][x] != dic[0]): return False
    if(len(dic) == 1): return True
    for direction in range(0, 8):
        nextY = y + dy[direction]
        nextX = x + dx[direction]
        if(hasWord(nextY, nextX, dic[1:])):
            return True
    return False
#main
test_number = int(raw_input())
for i in range(0, test_number): 
    for i in range(0, 5):
        board_matrix[i] = raw_input()   
    dic_number = int(raw_input());
    dic_matrix = [[0 for col in range(dic_number)] for row in range(16)]
    for i in range(0, dic_number):
        dic_matrix[i] = raw_input()
#    for i in range(0, 5):
#        print word_matrix[i]
        chk = False
        for y in range(0, 5):
            for x in range(0, 5):                        
                if(hasWord(y, x, dic_matrix[i])):
                    chk = True
        if(chk): print dic_matrix[i] + ' ' + "YES"
        else: print dic_matrix[i] + ' ' + "NO"