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BST tree traversal of Pre-order

Time complexity of this program O(n)

Below in C implementation of this problem. Recursive approach.

Accepted Output

Inserted Tree Data of BST is :

150, 73, 330, 190, 20, 110, 135, 610, 80, 130

Pre-order Traversal

150 20 110 80 135 130 730 330 190 610

Output
  Pre-order data is :  150  20  110  80  135  130  730  330  190  610 

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