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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. set<int>st;
  4. int main() {
  5.  
  6. 	int n;
  7. 	cin>>n;
  8. 	for(int x,i=0; i<n;i++){
  9. 		cin>>x;
  10. 		st.insert(x);
  11. 	}
  12. 	if(st.size()>2)cout<<n-2;
  13. 	else cout<<0;
  14. 	return 0;
  15. }
Success #stdin #stdout 0s 15240KB
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https://ideone.com/yMg5FU
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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