title: how to look up hash_map in C++?
body: <p>Here's what I have, I am new to C++ so I am not sure if this is right...</p>
  
  <pre><code>typedef pair&lt;string, int&gt;:: make_pair;
  hash_map &lt;string, int&gt; dict;
  dict.insert(make_pair("apple", 5));
  </code></pre>
  
  <p>I want to give my hash_map "apple", and I want to get back 5. How do I do it?</p>