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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. long long int n,m=0,p,q;
  4. int main(){
  5. cin>>n;
  6. long long int a[n];
  7. for(int j=0;j<n;j++){
  8. cin>>p>>q;
  9. m=m+(q*n)-p;
  10. a[j]=p-q;
  11. }
  12. sort(a,a+n);
  13. for(int i=0;i<n;i++){
  14. m=m+(a[n-i-1]*(i+1));
  15. }
  16. cout<<m;
  17. return 0;
  18. }
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/HKX9CT
stas and buffet - codeforces D
language:
C++ (gcc 8.3)
created:
20 days ago
visibility:
public

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