title: address passing in scanf but not in printf
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/3893615/why-scanf-must-take-the-address-of-operator">Why scanf must take the address of operator</a>  </p>
  </blockquote>
  
  
  
  <p>Why do we pass the variable in the case of printf(), whereas the address of the variable in the case of scanf()?
  why to pass address in scanf</p>