title: stl priority queue based on lower value first
body: <p>I have a problem with stl priority queue.I want to have the priority queue in the increasing 
  order,which is decreasing by default.Is there any way to do this in priority queue.</p>
  
  <p>And what is the complexity of building stl priority queue.If i use quick sort in an array which takes O(nlgn) is its complexity is similar to using priority queue???</p>
  
  <p>Plz someone ans.Advanced thanx.   </p>