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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t;
  6. 	t=1;
  7. 	// cin >> t;
  8. 	while (t--){
  9. 		int n;
  10. 	cin >> n;
  11. 	set<int> f;
  12. 	int A[n];
  13. 	for(int i=0;i<n;i++){
  14. 		cin >> A[i];
  15. 		f.insert(A[i]);
  16. 	}
  17. 	cout << f.size() << endl;
  18. 	}
  19. 	return 0;
  20. }
Success #stdin #stdout 0.01s 5392KB
comments (?)
stdin
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5
2 3 2 2 3
stdout
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2
https://ideone.com/9hTvF4
language:
C++ 4.3.2 (gcc-4.3.2)
created:
321 days ago
visibility:
public

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