/******************************************************************************
Online C++ Compiler.
Code, Compile, Run and Debug C++ program online.
Write your code in this editor and press "Run" button to compile and execute it.
*******************************************************************************/
#include <iostream>
using namespace std;
int main()
{
bool topic_has_been_chosen = false;
char user_input;
while (topic_has_been_chosen == false)
{
cout<<"Choose a topic:\n[A]. topic 1\n[B]. topic 2\n[C]. topic 3"<<endl;
cin>>user_input;
if ( user_input != 'a' &&
user_input != 'A' &&
user_input != 'b' &&
user_input != 'B' &&
user_input != 'c' &&
user_input != 'C' )
{
topic_has_been_chosen = false;
std::cout << "Bad choice. \n";
}
else
{
topic_has_been_chosen = true;
}
}
cout << "You chose " << user_input;
}
