以下是使用 Python 解决此问题的示例代码: ```python def can_meet_requirement(n, u, k, a, target_length): total_length = n * u for length in a: total_length += length if total_length >= target_length: return True else: return False def min_consumption(n, u, k, a, target_length): a.sort(reverse=True) total_length = n * u consumed = 0 for length in a: total_length += length consumed += length if total_length >= target_length: return consumed for i in range(n): if total_length >= target_length: return consumed total_length += u consumed += u return -1 # 示例输入 n = 3 u = 5 k = 2 a = [3, 4] target_length = 20 if can_meet_requirement(n, u, k, a, target_length): print(min_consumption(n, u, k, a, target_length)) else: print("无法满足要求") ``` 在上述代码中,`can_meet_requirement` 函数用于判断现有面料是否能满足要求,`min_consumption` 函数用于计算满足要求时的最小消耗面料长度之和。首先对边角面料长度进行降序排序,然后依次累加,若能满足要求则返回消耗的长度和,若所有完整的原始面料都加入计算仍不满足要求,则返回 `-1` 表示无法满足。 [2024-09-28 11:30:31 | AI写代码神器 | 356点数解答]