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xavierfederer

Untitled

Sep 21st, 2019
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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7. int n;
  8. cin >> n;
  9.  
  10. int arr[n];
  11. int i, j, sum=1;
  12.  
  13. for(i=0; i<n; i++)
  14. {
  15. cin >> arr[i];
  16. }
  17.  
  18. sort(arr, arr+n);
  19.  
  20. for(i=n-2, j=1; i>=0; i--, j++)
  21. {
  22. sum+=(arr[i]*j+1);
  23. }
  24.  
  25. cout << sum << endl;
  26.  
  27. return 0;
  28. }
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