摘要:
![](https://img2018.cnblogs.com/blog/1492082/201910/1492082-20191024094619619-1247717309.jpg)![](https://img2018.cnblogs.com/blog/1492082/201910/1492082-20191024100254066-907187055.jpg)![](https://img... 阅读全文
摘要:
``` include using namespace std; const int N=805; define son(x) (rt 4 2+x) define ll long long struct node{ int mn; int mx; void reset(){ mx=INT_MIN; 阅读全文