```cpp
//AC
int h,n,l,r;
friend bool operator < (const PT &a,const PT &b){
if(a.h!=b.h) return a.h<b.h;
else return a.n>b.n;
//30
int h,n,l,r;
friend bool operator < (const PT &a,const PT &b){
if(a.h!=b.h) return a.h<b.h;
else return a.n<b.n;
```
by Thecats @ 2017-04-01 17:59:24