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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. int fr[101]={0},n,x;
  6. 	cin>>n;
  7. 	for(int i=0;i<n;i++){
  8. 		cin>>x;//3 2 1
  9. 		fr[x]++;//0 1 1 1 0 
  10. 	}
  11. 	for(int i=0;i<101;i++){
  12. 		if(fr[i]>=2){
  13. 			cout<<i;
  14. 		}
  15. 	}
  16.  
  17. 	return 0;
  18. }
  19.  
  20.  
  21.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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7
1 5 3 5 1 2 8
stdout
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15
https://ideone.com/Zm0pik
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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