@[noip](/user/3296)
by wlzhouzhuan @ 2019-11-07 13:56:48
orz
by tiger0133 @ 2019-11-07 13:57:00
orzzz
by SIGSEGV @ 2019-11-07 13:57:35
zz loves xyr
by __Hacheylight__ @ 2019-11-07 13:57:37
而且，数据都满足$n=m$的特殊性质。。。
by wlzhouzhuan @ 2019-11-07 13:58:11
这题没什么用了吧，懒得加了qwq
by noip @ 2019-11-07 23:22:09