?啥意思
by tribool4_in @ 2021-03-06 10:38:54
并查集(union set)
```c
void inun(int rt)
{
register int i;
unin[rt]=1;
for(i=1; i<=n; ++i)
if(cnct[rt][i])
if(!unin[i])
inun(i);
}
```
然后用```unin[i]^unin[j]```
by gheescoo @ 2021-05-02 00:59:12
@[gheescoo](/user/397548) 更好用递归父亲节点表示,我刚刚这个只是针对两个牧场
by gheescoo @ 2021-05-05 12:25:01