A loop does not always stop. For example, if n = 10 then
  i = 0;
  while(i != n)
  {
    printf("%i\n", i);
  }
      will never end.  If you suspect that your
      program is in an infinite loop, use control-C
      to stop it.  Consider running a 
        debugger
        to find out where the problem is.
    
    
    How can you stop a program that appears to be in an infinite loop? Answer