Question

If we put 15 in the root, what would be the process of heapify?

            85
            /\
           /  \
          /    \
        55      70
        /\      /\
       /  \    /  \
      22  33  30  65
     /\   /
   14 15 15

What should be the way to delete 85 from the Heap?

Answer 1

As you are always swapping it with the larger of the two (heap property means that the parent is always larger than its children):

            15
            /\
           /  \
          /    \
        55      70
        /\      /\
       /  \    /  \
      22  33  30  65
     /\   
   14 15

            70
            /\
           /  \
          /    \
        55      15
        /\      /\
       /  \    /  \
      22  33  30  65
     /\   
   14 15

            70
            /\
           /  \
          /    \
        55      65
        /\      /\
       /  \    /  \
      22  33  30  15
     /\   
   14 15