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  1. #include <iterator>
  2. #include <cstdio>
  3. #include <set>
  4. using namespace std;
  5. int main() 
  6. {
  7. 	int n;
  8. 	scanf ("%d", &n);
  9. 	int a[n];
  10. 	for (int i = 0; i < n; ++i)
  11. 		scanf ("%d", &a[i]);
  12. 	set<int> st;
  13. 	set<int>::iterator it;
  14. 	st.clear();
  15. 	for (int i = 0; i < n; ++i)
  16. 	{
  17. 		st.insert(a[i]);
  18. 		it = st.find(a[i]);
  19. 		++it;
  20. 		if (it != st.end())
  21. 			st.erase(a[i]);
  22. 	}
  23. 	printf ("%d\n",st.size());
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 3432KB
comments (?)
stdin 
5
1 4 2 4 3
stdout 
2
https://ideone.com/0LhtUI
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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