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  1. #include <iostream>
  2. #include <string>
  3. #include <set>
  4. #include <algorithm>
  5.  
  6. int main() {
  7.     std::string line;
  8.     std::getline(std::cin,line);
  9.     line.erase(std::remove(line.begin(), line.end(), ' '), line.end());
  10.     std::set<char> dict(line.begin(),line.end());
  11.     for( const auto &el :dict)
  12.         std::cout<<el;
  13.     std::cout<<std::endl;
  14.     return 0;
  15. }
Success #stdin #stdout 0s 3420KB
comments (?)
stdin 
abccbb babba
stdout 
abc
https://ideone.com/3p69J8
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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