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题目：小明公司的办公区有一条长长的走廊，由 N 个方格区域组成，走廊内部署了 K 台扫地机器人，其中第 i 台在第 Ai 个方格区域中。
已知扫地机器人每分钟可以移动到左右相邻的方格中，并将该区域清扫干净。
请你编写一个程序，计算每台机器人的清扫路线，使得：
它们最终都返回出发方格，
每个方格区域都至少被清扫一遍，
从机器人开始行动到最后一台机器人归位花费的时间最少。
注意多台机器人可以同时清扫同一方块区域，它们不会互相影响。
输出最少花费的时间。 在上图所示的例子中，最少花费时间是 6。第一台路线：2-1-2-3-4-3-2，清 扫了 1、2、3、4 号区域。第二台路线
5-6-7-6-5，清扫了 5、6、7。第三台路线 10-9-8-9-10，清扫了 8、9 和 10。
输入格式
第一行包含两个整数 N 和 K。 接下来 K 行，每行一个整数 Ai。
输出格式
输出一个整数表示答案。
全部代码：
def judge(m,q): for i in range(k): if (a[i]-q) <= m: if a[i]<= m: m = a[i] + q
-1 else: m = a[i] + q -(a[i] - m) else: return 0 if m < n: return 0 return 1 n,k
= map(int,input().split()) a=[0]*k for i in range(k): a[i]=int(input()) a.sort()
if (n/k) >=a[0]: q = int(n/k) else: q = a[0] for i in range(q,n+1): m = 0 if
judge(m,i)==1: print(2 * (i - 1)) break
