------------
string.h
(~~好像是~~)
by ZnH2 @ 2019-11-24 18:52:03
@[在你头上暴扣](/user/217323) 试过了，不行啊~~（我太菜了）~~
by youyi @ 2019-11-24 20:02:28
------------
@[youyi](/user/136667) 所以还是用(~~bits/stdc++.h~~)自己手写大小写转换靠谱
by ZnH2 @ 2019-11-30 12:09:41
@[youyi](/user/136667)
%%%%%%%%%%%%%%%%%%%%%%%%%
by sunxiaofan @ 2019-12-06 15:37:16