The Binary search tree works in a manner where every element that is to be inserted gets sorted then and there itself upon insertion. The comparison starts with the root, thereby following the left or right sub-tree depending if the value to be inserted is lesser or greater than root, respectively.

What is binary tree in algorithm?

A binary tree is a tree-type non-linear data structure with a maximum of two children for each parent. Every node in a binary tree has a left and right reference along with the data element. The node at the top of the hierarchy of a tree is called the root node. The nodes that hold other sub-nodes are the parent nodes.

Why is it called a binary search tree?

2 Answers. A binary tree is called binary since each node has at most TWO children. At first glance, the name might be confusing (You might think that it can only store 1’s or 0’s or something like that).