fork download 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	char a; 
  6. 	const string allowed{"iclvhkfsx"};
  7. 	while (  cin.get(a) && allowed.find(a)== string::npos)
  8. 	   cout << "Incorect input, try again ! ";
  9. 	if (cin.eof())
  10. 	   cout <<"EOF !!"<<endl; 
  11. 	else cout << "Success: "<<a<<endl; 
  12. 	return 0;
  13. }
Success #stdin #stdout 0s 3464KB
comments (?)
stdin 
XDEc
stdout 
Incorect input, try again ! Incorect input, try again ! Incorect input, try again ! Success: c
https://ideone.com/JXJGNN
language:
C++14 (gcc 8.3)
created:
7 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!