Interview Course Based on Story Questions

# Problem statement
You are given a linked list where each node contains an additional pointer called `random`. This pointer can point towards any node in the list or none. Your task is to create a function that takes the head of this linked list, creates a deep copy of the list, and then outputs the head of the copied list. 




## Input
The function’s input will be the `head` of a linked list with a random pointer. This `head` will be of type `Node`. The `Node` class contains an integer `val`, a `next` node pointer, and a `random` node pointer. The following is an example input:



DIY: Copy List with Random Pointer

Problem statement