~~这不就是一道树链剖分的裸题吗~~
by jxyzs @ 2019-10-06 19:27:12
~~QNDMX~~
by Sya_Resory @ 2019-10-06 19:28:19
>~~QNDMX~~
by Stick_With_Mars @ 2019-10-06 19:28:56
@[jxyzs](/space/show?uid=133922) 你要知道,tqr的日常deco行为
by 俾斯麦 @ 2019-10-06 19:28:58
@[_tqr](/space/show?uid=117842) ~~cv我的代码,已举报~~
by kkksx @ 2019-10-06 19:29:35
@[御坂20001号](/space/show?uid=115482) ~~改板子的事,能叫cv吗?~~
by 无意识躺枪人 @ 2019-10-06 19:30:06
Orz,每天AK的dalao
by YZhe @ 2019-10-06 19:35:56
Orz
by wwlw @ 2019-10-06 19:37:08
QNDMX(虽然只是道树剖模板)
by Provicy @ 2019-10-06 19:37:16
暂时发现的错误:
1. modify和query的递归写错了
2. dfs1里面应该是size[u]+=size[v];
by 无意识躺枪人 @ 2019-10-06 20:00:28