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Which of the following need not be a binary tree?
(a) Heap (b) B-Tree
(c) AVL- Tree (d) None of these
asked in DS | 259 views
Heap need not be always binary , it may be $d_{ary}$ heap
A B-Tree is not a binary tree , it may be n-ary tree

(b) B-Tree
selected
B tree...................... B trees need not be the binary tree. B trees may have more than 2 children....

order of B tree is max. no. of children a node can have..