Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- #include <iostream>
- #include <algorithm>
- #include <vector>
- using namespace std;
- int main(){
- long n, v=0;
- cin>> n;
- vector <long> a(n);
- vector <long> d(n);
- for(long i=0; i<n; i++){
- cin>> a[i];
- cin>> d[i];
- }
- sort(a.begin(), a.end());
- sort(d.begin(), d.end());
- for(long p=0, i=0, j=0; i<n;){
- if(a[i]<d[j]){
- p++;
- v+=p-1;
- i++;
- }
- else{
- p--;
- j++;
- }
- }
- cout<<(v+n)*2;
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement