perfect binary trees

Perfect Binary Trees: Perfect binary trees are a type of binary tree where every level is completely filled with nodes, except for the last level, which is filled from left to right. They have a balanced structure, with each non-leaf node having exactly two child nodes. The number of nodes in a perfect binary tree can be expressed as 2^h - 1, where 'h' is the height of the tree. This type of binary tree ensures efficient searching and indexing operations, making it useful in various applications such as binary heaps and some indexing schemes.

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