警示后人
cmp改成这个过了
```cpp
bool cmp(Q aa,Q bb)
{
if(bl[aa.l]!=bl[bb.l])return bl[aa.l]<bl[bb.l];
else if(bl[aa.r]!=bl[bb.r])return bl[aa.r]<bl[bb.r];
else return aa.t<bb.t;
}
```
此帖终
by DLYdly1105 @ 2023-10-27 19:11:38