@LHQing... 帮我调调啊
by 1kri @ 2020-04-08 15:29:13
@[L_C_A](/user/235926) @[LHQing](/user/167507)
by 1kri @ 2020-04-08 15:29:26
@[L_C_A](/user/235926) ~~你这个问题这么智障没人睬你~~
by 1kri @ 2020-04-08 15:30:03
蛤?
by LHQing @ 2020-04-08 15:30:07
@[L_C_A](/user/235926) ~~所以我是萌新啊~~
by 1kri @ 2020-04-08 15:30:20
@[LHQing](/user/167507) please look look
by 1kri @ 2020-04-08 15:30:43
您的BIT是啥?
by LHQing @ 2020-04-08 15:31:09
@[LHQing](/user/167507) 树状数组，在dfs序上统计子树和
by 1kri @ 2020-04-08 15:32:00
这题我都没听过...走了...
by LHQing @ 2020-04-08 15:32:18
@[L_C_A](/user/235926) ~~萌新爆切紫题~~
by kevin516 @ 2020-04-08 15:33:21