Mix Order Traversal of a Binary Tree

Mix Order Traversal of a Binary Tree

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Given a Binary Tree consisting of** N** nodes, the task is to print its Mix Order Traversal. 

Mix Order Traversal_ is a [tree traversal technique_](https://www.geeksforgeeks.org/tree-traversals-inorder-preorder-and-postorder/), which involves any two of the existing traversal techniques like Inorder, Preorder and Postorder Traversal. Any two of them can be performed or alternate levels of given tree and a mix traversal can be obtained.

Examples: 

_Input: _N = 6

_Output: __7 4 5 1 3 6 _

Explanation:

_Inorder-Preorder Mix Traversal is applied to the given tree in the following order: _

_Inorder Traversal is applied at level 0 _

_Preorder Traversal is applied at level 1 _

Inorder Traversal at level 2.

_Output: __4 5 7 1 6 3 _

data structures recursion tree inorder traversal postorder traversal preorder traversal tree traversals

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