7.4: TODO

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Wikibooks - Data Structures
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 Merge-heap: it would take two max/min heap and merge them and return a single heap. O(n) time.
 Make-heap: it would also be nice to describe the O(n) make-heap operation
 Heap sort: the structure can actually be used to efficiently sort arrays

Make-heap would make use a function heapify

//Element is a data structure//
   Make-heap(Element Arr[],int size) 
   {
       for(j=size/2;j>0;j--)
           {
               Heapify(Arr,size,j);
           }
   }

   Heapify(Element Arr[],int size,int t)
   {
       L=2*t;
       R=2*t+1;
       if(L<size )
       {
           mix=minindex(Arr,L,t);
           if(R<=size)
               mix=minindex(Arr,R,mix);
       }
       else
           mix=t;
       if(mix!=t)
       {
           swap(mix,t);
           Heapify(Arr,size,mix);
       }
   }

minindex returns index of the smaller element