When the min element is removed an empty node is created at the root. Since the heap tree is now with one
node less than the earlier number of nodes, the last element in the heap must move somewhere in the heap.
26
33
21
23
18
70
67
28
34
16
Empty node
Element to be placed
in the proper location
22
33
21
23
18
70
67
28
34
16
Empty node
moved down
(a) Delete minimum element 15
(b) Deletetion of minimum element 15 created an empty node
(c) Empty node moved one level down
Figure 11.14
Deletion of element
11.12|Data Structures and Algorithms Using C++
22
33
21
23
18
70
67
28
34
16
(d) Empty node moved ...
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