图表作为蕴涵方法

def print_tree_by_level(tree):    for level in tree:        print(level)def print_tree_by_level2(tree):    for level in tree:        for i in range(len(level)):            print(str(level[i]), end = ' ')        print()def get_path(edge):    path = []    while edge.parent:        path.append(edge.tag)        edge = edge.parent    path.append(edge.tag)    return path[::-1]

tree = generate_random_game_tree(g_cur_game)solution = reverse_induction(tree, g_cur_game)path = get_path(solution.path_last)print("Game cost array: {}".format(solution.cost_array))print("Winner is {} player ({})".format(1 + get_max_index(solution.cost_array), max(solution.cost_array)))print("Path is {}".format(path))