from math import inf n, k = list(map(int, input().split(" "))) a = list(map(int, input().split(" "))) dp = [[-inf] * (k + 1) for _ in range(n)] # dp[i][j], 当前在i, 跳了j次的最大余额 for i in range(6): dp[i][1] = a[i] for i in range(n): for j in range(k): # 仅到k - 1 if not dp[i][j] > -inf...