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We return the pointer of next node to his previous(current) node and then make the previous node as the next node of returned node and then returning the current node. Copyright 2015 – 2020 – – All Rights Reserved. Please use, generate link and share the link here. If you can clearly identify the steps needed to reverse a linked list, then it shouldn't be very difficult to write some code. Recursively call reverse for the rest of the linked list. Linked List. In this post, we will cover recursive implementation of it. Each node is connected to a next node by links ( using a pointer). Reverse Linked List II. When you get that done, try to write a recursive function to reverse the linked list (btw, don't think of an – Kiril This question is very important in terms of interviews. 2) Call reverse for the rest of the linked list. C program to count number of nodes in a linked list, C program to insert a node at the beginning of a linked list. Don’t stop learning now. We use cookies to ensure you have the best browsing experience on our website. Linked list is a linear collection of data elements, called nodes. In this recursive algorithm, we first check base cases where the input pointer is or points to a single element. In this approach of reversing a linked list by passing a single pointer what we are trying to do is that we are making the previous node of the current node as his next node to reverse the linked list. In my previous post, I have. We have discussed an iterative and two recursive approaches in previous post on reverse a linked list. close, link Let’s write a c code to reverse a linked list using recursion. Attention reader! brightness_4 Please write to us at to report any issue with the above content. See your article appearing on the GeeksforGeeks main page and help other Geeks. We have discussed what is linked list. Technology Blog Where You Find Programming Tips and Tricks, Multiply Two Numbers without using * (Multiplication Operator), C program to reverse a singly linked list, Program to Print Middle Element of a Linked List, C Program to Insert a Node at the Beginning of Linked List. Write a c program to reverse a linked list using recursion. If you like GeeksforGeeks and would like to contribute, you can also write an article using or mail your article to Accepted. code. Then, then there’s a trick to getting the one front node all the way to the end of the list. Submissions. Example: Input: 1->2->3->4->5->NULL Output: 5->4->3->2->1->NULL Follow up: A linked list can be reversed either iteratively or recursively. In this post, We are going to write a code to reverse a linked list using recursion. // We can now assume the entire linked list after the head is correctly // reversed. struct node* reverse(struct node* head) { // BASE CASE: If no next node (AKA this linked list has length 1), // just return the current HEAD // reverse the linked list starting from the next node. Medium. Similar Questions. We need to reverse the list by changing links between nodes. This assumption that reverse() works for a subset of our linked list (but not the whole thing) has gotten us pretty far. Below is simple recursive implementation that works by pointers of the nodes and finally head pointer of the list. store // the address of the head of this reversed list. The general recursive algorithm for this is: Divide the list in 2 parts - first node and rest of the list. Now we need to do the rest of the work to have the whole linked list reversed.

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