dp数组开大一点，把maxx去掉应该可以吧
by MarsNotFound @ 2023-10-17 16:38:53
@[MarsNotFound](/user/973789) 谢谢
by tyh0929 @ 2023-10-17 19:59:52
@[tyh18696696627](/user/705729) my pleasure
by MarsNotFound @ 2023-10-17 20:00:51