因为$x$是一个数值 你无论是$rank(x+1)$还是$rank(x-1)$都只是改变了数值 而$x$的前驱跟后继不一定跟$x$就差$1$
by nanfeng2233 @ 2024-03-31 17:29:02
@[coolwind](/user/1067279)
by nanfeng2233 @ 2024-03-31 17:34:30
@[nanfeng2233](/user/1144252) 好嘞，蟹蟹佬
by coolwind @ 2024-04-02 22:51:02
我比较好奇为什么深基代码会[TLE](https://www.luogu.com.cn/record/155274678)（交的源码）
by kairuigg @ 2024-04-11 09:52:34