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fahimkamal63

Untitled

Jun 27th, 2019
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C++ 0.30 KB | None | 0 0
  1. #include<iostream>
  2. #include<algorithm>
  3. using namespace std;
  4.  
  5. int main(){
  6.     int n; cin >> n;
  7.     int a[n];
  8.     for(int i = 0; i < n; i++){
  9.         cin >> a[i];
  10.     }
  11.     sort(a, a+n);
  12.     int ans = 0;
  13.     for(int i = 0; i < n; i++){
  14.         if(a[i] >= ans + 1) ans++;
  15.     }
  16.     //ans--;
  17.     cout << ans;
  18. }
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