@[rsg23](/user/384498) @[pzq_loves_qwq](/user/384214) 树剖神仙救救我/ll
by BFSDFS123 @ 2022-01-25 20:45:45
@[BFSDFS123](/user/358739) `scanf("%s", &opt)` -> `scanf("%s", opt)`
by esquigybcu @ 2022-01-25 21:42:14
@[pzq_loves_qwq](/user/384214) 改了，但是没有任何*用
by BFSDFS123 @ 2022-01-25 21:44:03
@[BFSDFS123](/user/358739) 开 sanitizer 看了下，应该是 `update` 里面访问到了一个不合法的地址
`qwq.cpp:78:20: runtime error: index 2097152 out of bounds for type 'long long int [2000040]'`
by esquigybcu @ 2022-01-25 22:06:01
锅的是 144 行
`u = 0, v = 9625`
by esquigybcu @ 2022-01-25 22:10:49
离大谱，`dfn[]` 里一大堆 0 /yiw
by esquigybcu @ 2022-01-25 22:35:04
@[pzq_loves_qwq](/user/384214) 我并没有看懂 dfn[] 为啥会出现 0 /kk
by BFSDFS123 @ 2022-01-25 22:37:40
@[BFSDFS123](/user/358739) 60 行不应该是 `return` 应该是 `continue`
by esquigybcu @ 2022-01-25 22:39:43
@[pzq_loves_qwq](/user/384214) 我*，谢谢神仙qwq
我是s*
by BFSDFS123 @ 2022-01-25 22:40:54
$\uparrow$ 59行
by esquigybcu @ 2022-01-25 22:41:06