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  1. #include <iostream>
  2. #include <string>
  3. #include <set>
  4.  
  5. int main() {
  6.     std::string line;
  7.     std::getline(std::cin,line);
  8.  
  9.     std::set<char> dict(line.begin(),line.end());
  10.     dict.erase(' ');
  11.     for( const auto &el :dict)
  12.         std::cout<<el;
  13.     std::cout<<std::endl;
  14.     return 0;
  15. }
Success #stdin #stdout 0s 3468KB
comments (?)
stdin 
aa bb cc
stdout 
abc
https://ideone.com/K5uQNZ
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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