顺便说一下：我输入样例后输出的是247，不知道这个信息有没有用
by BotTleR @ 2020-04-16 12:15:58
@[HSHSTC12345](/user/184180)
```cpp
std::sort(edge+1,edge+n+1,cmp);
```
改成m
by infinities @ 2020-04-16 12:17:16
？
by BotTleR @ 2020-04-16 12:17:59
我试试
by BotTleR @ 2020-04-16 12:18:06
仍然是247啊qwq
by BotTleR @ 2020-04-16 12:18:50
样例247认真的？
by infinities @ 2020-04-16 12:21:21
对啊
by BotTleR @ 2020-04-16 12:22:04
啊啊啊
by BotTleR @ 2020-04-16 12:22:48
```cpp
if(tot=n-1)
std::cout<<ans;
```
这个等于号....
by infinities @ 2020-04-16 12:22:55
awsl
by BotTleR @ 2020-04-16 12:22:55