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  1. #include <iostream>
  2. #include <bits/stdc++.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n ; cin>>n;
  7. 	unordered_map<string,int>hash;
  8. 	for(int i = 0 ; i<n;i++){
  9. 		string s; 
  10. 		cin>>s;
  11. 		hash[s]++;
  12. 	}
  13. 	vector<string>ans;
  14. 	for(auto i : hash){
  15. 		if(i.second>1){
  16. 			ans.push_back(i.first);
  17. 		}
  18.  
  19. 	}
  20. 	 sort(ans.begin(),ans.end());
  21. 	for(string i : ans) cout<<i<<" ";
  22. 	return 0;
  23. }
Success #stdin #stdout 0s 5252KB
comments (?)
stdin
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7
batman latte cat matter cat matter cat
stdout
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cat matter
https://ideone.com/yzaLFN
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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