Question: Sample Data Structures Questions Chapter 10 Trees provide a specific short answer for the below question in c++. Using the binary_tree_node from Section 10.3, write

Sample Data Structures Questions Chapter 10 Trees

provide a specific short answer for the below question in c++.

Using the binary_tree_node from Section 10.3, write a function to meet the following specification. You do not need to check the precondition. Make the function as efficient as possible (do not visit nodes unnecessarily):

template

size_t count42(binary_tree_node* root_ptr)

//Precondition: root_ptr is the root pointer of a binary SEARCH tree.

// Postcondition: The return value indicates how many times 42 appears in the tree.

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