@[Ofnoname](/space/show?uid=73489) 树状数组求逆序对w
by かなで @ 2018-05-31 18:52:36
@[かなで](/space/show?uid=100018) 您太强了，我当初完全没想到
by AlgoEmperor @ 2018-05-31 18:58:13
@[Ofnoname](/space/show?uid=73489) 您才强呢qwq
by かなで @ 2018-05-31 18:58:46
@[かなで](/space/show?uid=100018) 我要是强，世界上80%的人就能AK IOI了
by AlgoEmperor @ 2018-05-31 19:29:28
@[Ofnoname](/space/show?uid=73489) 那估计全谷都属于那20%了qwq
by かなで @ 2018-05-31 19:31:17
话说这题貌似三个标签都用不上啊
by FCBM71 @ 2018-05-31 19:51:09
这标签好毒......
by qwqqqqqq @ 2018-06-02 21:03:08