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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int n;
  7. 	cin>>n;
  8. 	int *arr=new int[n];
  9. 	for(int i=0;i<n;i++)
  10. 	{
  11. 		cin>>arr[i];
  12. 	}
  13. 	sort(arr,arr+n);
  14. 	int d=1,c=0;
  15. 	for(int i=0;i<n;i++)
  16. 	{
  17. 		if(d<=arr[i])
  18. 		{
  19. 			c++;
  20. 			d++;
  21. 		}
  22. 	}
  23. 	cout<<c;
  24. 	delete arr;
  25. 	return 0;
  26. }
Success #stdin #stdout 0s 15240KB
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https://ideone.com/Uf6mWg
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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