查找具有排除组合的给定数组的值的最佳组合

def find_best_combination(arr, exclude_combinations):
    def backtrack(start, path):
        if len(path) == k:
            if tuple(path) not in exclude_combinations:
                valid_combinations.append(path[:])
            return
        for i in range(start, len(arr)):
            path.append(arr[i])
            backtrack(i + 1, path)
            path.pop()

    n = len(arr)
    k = 3  # 假设我们要找3个元素的组合
    valid_combinations = []
    exclude_combinations = set(exclude_combinations)
    backtrack(0, [])
    
    # 找到最佳组合（这里假设最佳组合是和最大的组合）
    best_combination = max(valid_combinations, key=sum, default=[])
    return best_combination

# 示例
arr = [1, 2, 3, 4, 5]
exclude_combinations = [(1, 2, 3), (2, 3, 4)]
best_combination = find_best_combination(arr, exclude_combinations)
print("最佳组合:", best_combination)