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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int t;
  6.     cin>>t;
  7.     while(t--){
  8.         string s;
  9.         cin>>s;
  10.         map<char,int> mp;
  11.         for(int i=0;i<s.size();i++){
  12.             mp[s[i]]++;
  13.         }
  14.         for(auto x: mp){
  15.             if(x.second<2) cout<<x.first;
  16.         }
  17.         cout<<endl;
  18.     }
  19. }
Success #stdin #stdout 0.02s 5320KB
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Standard input is empty
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https://ideone.com/OwR6qR
language:
C++14 (gcc 8.3)
created:
18 days ago
visibility:
public

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