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Binary search tree print Internal node using recursion

In this post we are learning about how to print internal node (non leaf node) BST nodes. Assume that following data are inserted on tree [527, 442, 559, 417, 489, 592, 435, 486, 505, 569].

BST Tree Binary Search Tree 527559442417435489592486505569

internal node of BST are contain at least one child node.

Internal nodes Binary Search Tree Print internal nodes 527559442417435489592486505569

Try it Yourself

Algorithm:

Time complexity of this program O(n)

Execution Process:

Execution Process Code execution process to print all bst internal nodes. Stack Areamainroot(pointer)print_internaltemp(pointer)print_internaltemp(pointer)print_internaltemp(pointer)print_internaltemp(pointer)print_internaltemp(pointer) NULL Heap Areastruct Treedata (int)= 527left_child (pointer) right_child (pointer) struct Treedata (int)= 442left_child (pointer) right_child (pointer) struct Treedata (int)= 559left_child (pointer)= NULLright_child (pointer) struct Treedata (int)= 417left_child (pointer)= NULLright_child (pointer) struct Treedata (int)= 489left_child (pointer)= NULLright_child (pointer) struct Treedata (int)= 592left_child (pointer) right_child (pointer)= NULLstruct Treedata (int)= 435left_child (pointer)= NULLright_child (pointer)= NULLstruct Treedata (int)= 505left_child (pointer)= NULLright_child (pointer)= NULLstruct Treedata (int)= 569left_child (pointer)= NULLright_child (pointer)= NULL

In this execution process not imagination all steps. below link click and view how to insert bst node, how to show all bst node and how to print internal BST nodes.

C program to print all internal node of given binary search tree. recursive approach.

Output
BST Inorder data is :  417  435  442  489  505  527  559  569  592
    Internal Nodes is : 417 442 489 527 559 592

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