title: Online C++ compiler with input stream?
body: <p>I kinda like <a href="http://codepad.org/" rel="noreferrer">codepad online editor (supports C++)</a>, but I'd like to use some <a href="http://en.cppreference.com/w/cpp/io/c/fscanf" rel="noreferrer">scanf</a>s which is not possible with codepad. </p>
  
  <p>Is there some online C++ compiler that supports input streams? Is that even possible?</p>