java - Is this a valid MaxHeap structure? -


i trying convert minheap class maxheap class. given code minheap class, 1 method of add. looks this:

while (index > 1 && getparent(index).compareto(newelement) > 0) 

the first node automatically set null, gets add placed in node 1 onwards. code stated gives minheap structure. change maxheap, flipped comparator sign so:

while (index > 1 && getparent(index).compareto(newelement) < 0) 

the items entering being stored integer value. in order of insertion are:

3 7 8 10 6 1 9 2 

in minheap structure, these stored in nodes so:

            1        2         3     6     7   8     9  10 

in maxheap structure, changing sign stores them so:

           10       8           9    2     7     3     6  1 

note how no longer in same kind of sequential order in minheap structure. matter or still valid maxheap?

apologies awful attempt @ showing tree structure.

yes. if heap being stored valid max-heap. max-heap have property every node (except root) contain value less or equal parent. heap obey rule.


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