Mad Street Den Interview Questions, Process, and Tips

Invert a given binary tree by swapping left and right child nodes recursively.

• Recursively swap left and right child nodes of each node in the binary tree.

• Start from the root node and swap its left and right child nodes.

• Then, recursively swap the left and right child nodes of the left and right child nodes of the root node.

• Repeat the process until all nodes have been swapped.

• Return the inverted binary tree.

Trees are a type of graph with a hierarchical structure. Graphs are a collection of nodes and edges.

• Trees have a single root node, while graphs can have multiple disconnected nodes.

• Traversal of trees can be done using depth-first or breadth-first search algorithms.

• Traversal of graphs can be done using various algorithms like Dijkstra's algorithm, Bellman-Ford algorithm, etc.