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Binary search tree print Internal node using queue

Time complexity of this program O(n)

Accepted Output

Given BST tree node is:

417, 100, 487, 455, 554, 422, 495, 583, 529, 593, 507

Edit Tree Click Here

417487554495529583507455422593100

Result :

Internal node is : 417, 455, 487, 495, 529, 554, 583

Another BST tree data is :

470, 434, 591, 428, 541, 432, 515, 571, 502, 486

Edit Tree Click Here

470434591428541432515571502486

Result

428, 434, 470, 502, 515, 541, 591

Below in C implementation of this problem. Iterative approach.

Output
 BST Data is :  30  40  90  104  104  115  140  220  240
 Internal node is :   140  90  220  30  104  115
 Free Memory of Queue

 Free BST node

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