Question
Consider the following C++-like pseudo-code for a binary tree traversal: ```cpp struct Node { int data; Node left; Node right; }; void trickyTraversal(Node root) { if (root == nullptr) { return; } if (root->left != nullptr) { trickyTraversal(root->left); } std::cout data right != nullptr) { trickyTraversal(root->right); } } ``` Given the following binary tree: ``` 10 / \ 5 15 / \ / 2 7 12 ``` What will be the output of `trickyTraversal(root)` where `root` points to the node with data `10`?
Solution
The `trickyTraversal` function is an Inorder Traversal. It first recursively visits the left child. Then it prints the current node's data. Then it recursively visits the right child. This is the definition of an Inorder Traversal. For the given tree: ``` 10 / \ 5 15 / \ / 2 7 12 ``` Inorder traversal: Left -> Root -> Right 1. `trickyTraversal(10)` 1.1. `trickyTraversal(5)` 1.1.1. `trickyTraversal(2)` 1.1.1.1. `trickyTraversal(nullptr)` -> return 1.1.1.2. Print `2` 1.1.1.3. `trickyTraversal(nullptr)` -> return 1.1.2. Print `5` 1.1.3. `trickyTraversal(7)` 1.1.3.1. `trickyTraversal(nullptr)` -> return 1.1.3.2. Print `7` 1.1.3.3. `trickyTraversal(nullptr)` -> return 1.2. Print `10` 1.3. `trickyTraversal(15)` 1.3.1. `trickyTraversal(12)` 1.3.1.1. `trickyTraversal(nullptr)` -> return 1.3.1.2. Print `12` 1.3.1.3. `trickyTraversal(nullptr)` -> return 1.3.2. Print `15` 1.3.3. `trickyTraversal(nullptr)` -> return Output: `2 5 7 10 12 15`
- In a relational database, which relationship allows multiple records in one table to be associated with multiple records in another table?
- Which type of relationship exists when a record in one table can relate to multiple records in another table, and vice versa?
- In an E-R Diagram, entities are typically represented by:
- Multiversion Concurrency Control (MVCC) ensures:
- Examine the following Java-like code: ```java class Parent { String name = "Parent"; public void display() { Syst...
- Which of the following is true about ACID properties in DBMS?
- A software defect that causes a program to produce incorrect output without crashing or displaying an error message is typically classified as a:
- Which key uniquely identifies a record in a table?
- Given a binary tree, a "zigzag" level order traversal prints the nodes level by level, but alternating the order of nodes from left-to-right and right-to-l...
- Consider the following Java code snippet public class Car { private String model; private int year; public Car(String model, int year) {...