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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int main() {
  4.     int n;
  5.     cin >> n;
  6.     vector<int> a(n);
  7.     for(int i = 0;i<n;i++){
  8.         cin >> a[i];
  9.     }
  10.     sort(a.begin(),a.end(),greater<int>());
  11.     int d = 0;
  12.     for(int i = 0;i<n;i++){
  13.         if(a[i]>i){
  14.             d += a[i] - i;
  15.         }
  16.     }
  17.     cout << d;
  18.     return 0;
  19. }
  20.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/s81Tp5
language:
C++14 (gcc 8.3)
created:
4 days ago
visibility:
public

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