title: Convert String containing several numbers into integers
body: <p>I realize that this question may have been asked several times in the past, but I am going to continue regardless.</p>
  
  <p>I have a program that is going to get a string of numbers from keyboard input. The numbers will always be in the form "66 33 9" Essentially, every number is separated with a space, and the user input will always contain a different amount of numbers.</p>
  
  <p>I'm aware that using 'sscanf' would work if the amount of numbers in every user-entered string was constant, but this is not the case for me. Also, because I'm new to C++, I'd prefer dealing with 'string' variables rather than arrays of chars.</p>