title: importing numpy in hackerrank competitions
body: <p>I want to use numpy module for solving problems on hackerrank. But, when I imported numpy, it gave me the following error.</p>
  
  <blockquote>
    <p>ImportError: No module named 'numpy'.</p>
  </blockquote>
  
  <p>I understand that this might be a very trivial question. But, I am a beginner in programming. Any help is highly appreciated.</p>