title: Which one is better stl map or unordered_map for the following cases
body: <p>I am trying to compare stl map and stl unordered_map for certain operations. I looked on the net and it only increases my doubts regarding which one is better as a whole. So I would like to compare the two on the basis of the operation they perform.</p>
  
  <p>Which one performs faster in</p>
  
  <p>Insert, Delete, Look-up</p>
  
  <p>Which one takes less memory and less time to clear it from the memory. Any explanations are heartily welcomed !!!</p>
  
  <p>Thanks in advance</p>