icecathy @ 2016-11-07 19:30:25
即a[i]<=a[j] (i<j)。
by icecathy @ 2016-11-07 19:32:36
n<=1000
by BlueArc @ 2017-05-24 20:57:56
@icecathy 第三问呢？
by 时光 @ 2017-07-09 16:41:20
似（肯）乎（定）没有那么简单啊~
by 时光 @ 2017-07-09 16:42:01
网络流啊