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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	string a, b;
  7. 	while(getline(cin, a) && getline(cin, b)){
  8. 		for(char letter ='a'; letter <= 'z'; ){
  9. 			if((a.find(letter)!=string::npos) && 
  10. 				(b.find(letter)!=string::npos)){
  11. 				cout << letter;
  12. 				a.erase(a.find(letter),1); /* стираем найденную 
  13. 				букву в первой строке */
  14. 				b.erase(b.find(letter),1); /* стираем найденную 
  15. 				букву во второй строке */
  16. 			}
  17. 			else letter++;
  18.  
  19. 		}
  20. 	cout << endl;
  21. 	}
  22.  
  23. 	return 0;
  24. }
Success #stdin #stdout 0s 3464KB
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https://ideone.com/qZNLE6
2040
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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