Find if a given Binary Tree is a Sub-Tree of another Binary Tree

A sub-tree is a tree itself that is the subset of a bigger binary tree. A subtree of a node means that it is the child of that node. In this article, we will find out different ways to find out if a given binary tree is a sub-tree of another binary tree.

To understand this concept better, let us consider an example of a tree 'Target'.

Now, let us consider another tree called 'Source'.

Now, we will start to check from the root node of 'Target', that is 'a'. Since, 'a' is not present in 'Source'...