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Showing posts from May, 2024

Write Reverse Linked List in Python

 Reversing a linked list is a common problem in data structures, which involves changing the direction of the links between nodes so that the list's head becomes the tail and vice versa. Here, I will provide a Python implementation for reversing a singly linked list. Firstly, I'll define the Node class, which represents each element in the list, and then I'll define a LinkedList class which includes a method to reverse the list. Explanation : Node Class:      Each node has a data field and a next pointer to the next node in the list. LinkedList Class:      The append method adds a new node to the end of the list.      The print_list method prints all the nodes in the list from head to tail.      The reverse method changes the pointers' directions:                    -  We keep track of three pointers: prev for the previous node, current for the current n...