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Binary tree or Binary search tree print sum of leaf node

In this post we are learning about how to sum of all leaf binary tree or binary search tree BST nodes. Assume that following data are inserted on tree [517, 492, 553, 490, 507, 549, 567, 476, 528, 561].

sum of leaf node in given tree

Try it yourself

Leaf node of tree has not contain any child nodes.

Sum of leaf nodes


Time complexity of this program O(n)

Execution Process:

Code execution Execution process to sum of leaf nodes. Stack Areamainresult (int) =1511root(pointer)sum_of_leafsum(pointer)temp(pointer)sum_of_leafsum(pointer)temp(pointer)sum_of_leafsum(pointer)temp(pointer)sum_of_leafsum(pointer)temp(pointer) Heap Areastruct Treedata (int)= 517left_child (pointer) right_child (pointer) struct Treedata (int)= 492left_child (pointer) right_child (pointer) struct Treedata (int)= 553left_child (pointer) right_child (pointer) struct Treedata (int)= 490left_child (pointer) right_child (pointer)= NULLstruct Treedata (int)= 507left_child (pointer)= NULLright_child (pointer)= NULLstruct Treedata (int)= 549left_child (pointer) right_child (pointer)= NULLstruct Treedata (int)= 567left_child (pointer) right_child (pointer)= NULLstruct Treedata (int)= 476left_child (pointer)= NULLright_child (pointer)= NULLstruct Treedata (int)= 528left_child (pointer)= NULLright_child (pointer)= NULLstruct Treedata (int)= 561left_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 sum of leaf BST nodes.

Click To Visualize Code

C programm to sum of all Leaf nodes. Recursive approach.

 BST Inorder data is :  476  490  492  507  517  528  549  553  561  567
 Sum of Leaf Nodes is: [2072]

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