fork download 
  1. #include <iostream>
  2. #include <string>
  3. #include <algorithm>
  4. #include <unordered_set>
  5.  
  6.  
  7. int main() {
  8.    std::unordered_set<char> a={'a','e','i','o','O','u','U','A','E','I',' '};
  9.  
  10.    std::string s="what are you doing";
  11.  
  12.    s.erase( std::remove_if( s.begin(), s.end(), [a] ( char c ){ return a.count(c) == 0; } ), s.end() );
  13.  
  14.    std::cout<<s << std::endl;
  15. }
Success #stdin #stdout 0s 4316KB
comments (?)
stdin 
Standard input is empty
stdout 
a ae ou oi
https://ideone.com/8iE0LT
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!