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Jan 25th, 2020
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  1. #include<algorithm>
  2.  
  3. using namespace std;
  4.  
  5. void removeString(string s)
  6. {
  7.  
  8. for(int i=0; i<s.length(); i++)
  9. {
  10. for(int j=(i+1); j>=0; j--)
  11. {
  12. if(s[i]==s[j])
  13. {
  14. s.erase(std::remove(s.begin(), s.end(), s[i]));
  15. }
  16. }
  17. }
  18. cout << s << endl;
  19. }
  20.  
  21. int main()
  22. {
  23. string s;
  24. getline(cin,s);
  25. removeString(s);
  26. return 0;
  27. }
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