fork download
copy 
  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	// your code goes here
  7. 	int t;
  8. 	cin>>t;
  9. 	while(t-->0)
  10. 	{
  11. 		int n;
  12. 		cin>>n;
  13. 		int a[n];
  14. 		for(int i=0;i<n;i++)
  15. 		cin>>a[i];
  16. 		sort(a,a+n);
  17. 		int b[n];
  18. 		for(int i=0;i<n;i++)
  19. 		b[i]=a[n-i-1];
  20. 		int ans=0;
  21. 		int i=0;
  22. 		while(i<n)
  23. 		{
  24. 			int j=i+b[i];
  25. 			if(j<=n) ans++;
  26. 			i=j;
  27. 		}
  28. 		cout<<ans<<endl;
  29. 	}
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 5508KB
comments (?)
stdin
copy 
2
3
1 1 1
3
3 1 1
stdout
copy 
3
1
https://ideone.com/9UBhvC
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!