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  1. #include <iostream>
  2. using namespace std;
  3. const int maxN = 1e6+5;
  4.  
  5. int n, a[maxN];
  6.  
  7. void solve()
  8. {
  9. 	int ans = 0;
  10. 	for(int i=1; i<=n; i+=1)
  11. 	{
  12. 		if(a[i]<=i) ans++;
  13. 	}
  14. 	cout<<ans<<'\n';
  15. }
  16. int main() {
  17. 	int test = 1;
  18. 	cin>>test;
  19. 	while(test--)
  20. 	{
  21. 		cin>>n;
  22. 		for(int i=1; i<=n; i+=1) cin>>a[i];
  23. 		solve();
  24. 	}
  25. 	return 0;
  26. }
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
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4
3
3 2 1
5
4 3 2 5 1
4
4 2 1 3
4
2 3 4 1
stdout
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2
2
3
1
https://ideone.com/qdyeDP
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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