@[Conical](/space/show?uid=7004) 打错了。。是 $O(n\log^2n)$
by Conical @ 2019-05-14 22:34:34
环烃、烯烃、炔烃、顺反异构还有苯环的特殊结构。。爆搜怕是都难写
by SSerxhs @ 2019-05-14 22:35:14
@[Conical](/space/show?uid=7004) 老哥你那是烷烃不是烃啊
by songyuchen @ 2019-05-14 22:38:10
烃不全是树状结构的
by songyuchen @ 2019-05-14 22:38:40
我说的不考虑特殊情况就是指有环的烃啊（
by Conical @ 2019-05-14 22:39:41
没咋学化学の蒟蒻路过
by ferrum_cccp @ 2019-05-15 12:39:08
慢慢数
by wohaopa @ 2019-05-16 12:58:22
@[NaCly_Fish](/space/show?uid=115864) 鱼鱼 has AKed IOI for many times
by David崔 @ 2019-06-18 20:15:11