c++,binary calculator.need help!!!!

Add a do-while loop to your code, i.e. the front and end should look like this

// ... what-ever you have above, prior to the main
void main()
{
  do
  {
 
  //... the rest of your original code goes here ...
 
  } while(1)
}

then this program will keep going forever.

You might like to replace the '1' in 'while(1)' with a nicer condition, so for example it breaks when the user types 'q'.