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47. Find the Size of the Binary Tree
Objective: Given a Binary tree, Find the size of the tree.
Note : The size of the tree is the number of nodes in the tree
Example :
Approach :
- Very Simple solution
- Start from the root.
- Size = 1 (for the root) + Size Of left Sub-Tree + Size Of right Sub-Tree
- solve the left sub-tree and right sub-tree recursively.
Size of the Tree is: 7