Required knowledge Basic C programming, Functions, Singly Linked List, Dynamic memory allocation Algorithm … Continue reading C program to reverse a Singly Linked List → If we run above program then it will generate following output. One way of printing the list backward is to first reverse the list, then print it in forward order and then reverse it back again to restore the original list. We have to apply the iterative approach to solve this problem. data structures in c – linked list (20 programs) Try DATA STRUCTURES IN C – LINKED LIST (20 PROGRAMS) Linked List in C- Print Linked List in Reverse Order using Recursion : By using our site, you
Don’t stop learning now. brightness_4 Write an iterative algorithm in Java-like pseudocode for printing a singly linked list in reverse in O(N) time. Example 10->20->30->40->NULL NULL<-10<-20<-30<-40. Online C Linked List programs for computer science and information technology students pursuing BE, BTech, MCA, MTech, MCS, MSc, BCA, BSc. Here is the source code of the C Program to Print linked list in reverse order using recursion. 1.) A linked list is an ordered set of data elements, each containing a link to its successor. Reversing a Linked List Using Recursion. This tutorial outlines a challenge that requires printing a LinkedList in reverse order. Iterative method is the one which generally uses loops that are executed till the condition holds value 1 or true. In this post, We are going to write a code to reverse a linked list using recursion. A linked list a data structure for storing a collection of data elements. Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below. We will store the head node of linked list in function stack and then recursively call reverseLLPrint function for sub linked list starting from head->next. Printing Linked list in Reverse order using Recursion is very easy. In this post, we will cover recursive implementation of it. Please write to us at contribute@geeksforgeeks.org to report any issue with the above content. We are given a linked list, we need to print the linked list in reverse order. Reverse a Linked List Recursively To reverse a LinkedList recursively we need to divide the LinkedList into two parts: head and remaining. Program – print single linked list in reverse order using recursive algorithm. A linked list, the task is to reverse the linked list. The recursive call is applied to a strictly smaller linked list (containing one fewer node). Approach 1: Iterative. Print Linked List In Reverse - Implementation of this algorithm is given below − Now, start traversing through the linked list till the end. Write a C programming to sort a given linked list by bubble sort. The solution discussed in previous post uses recursive approach. 1) Divide the list in two parts - first node and rest of the linked list. Auxiliary Space: O(k). Ask Question Asked 6 years, 1 month ago. Online C Linked List programs for computer science and information technology students pursuing BE, BTech, MCA, MTech, MCS, MSc, BCA, BSc. Here I will show how to iterate a Singly Linked List in reverse order. 1.) Below is the implementation of above approach: edit C Program to print linked list nodes in reverse order. Printing this in reverse order produces: 9 3 7 The third linked list has elements: . Approach 1: The idea is to use stack data structure. Given a linked list, print reverse of it using a recursive function. This program makes each data element to link to its predecessor. This code is self explanatory. reverse manner. Many links that I studied seemed slightly unclear or had unnecessary steps. In this video, I show how to print the elements of a linked list in reverse order. Find the parent of a node in the given binary tree, Why companies like Amazon, Microsoft, Google focuses on Data Structures and Algorithms : Answered, Print the last k nodes of the linked list in reverse order | Recursive approach, Reverse alternate K nodes in a Singly Linked List - Iterative Solution, Print the alternate nodes of linked list (Iterative Method), Append odd position nodes in reverse at the end of even positioned nodes in a Linked List, Reverse a Linked List in groups of given size (Iterative Approach), Print Doubly Linked list in Reverse Order, Print nodes of a Binary Search Tree in Top Level Order and Reversed Bottom Level Order alternately, Generate Linked List consisting of maximum difference of squares of pairs of nodes from given Linked List, Merge two sorted linked lists such that merged list is in reverse order, Find the sum of last n nodes of the given Linked List, Exchange first and last nodes in Circular Linked List, Find the product of last N nodes of the given Linked List, Append the last M nodes to the beginning of the given linked list, Reverse alternate K nodes in a Singly Linked List, Given a linked list, reverse alternate nodes and append at the end, Reverse nodes of a linked list without affecting the special characters, Print All Leaf Nodes of a Binary Tree from left to right | Set-2 ( Iterative Approach ), Print all nodes at distance K from given node: Iterative Approach, An interesting method to print reverse of a linked list, Print reverse of a Linked List without extra space and modifications, Minimum sum path between two leaves of a binary tree, Minimum length substring with exactly K distinct characters, Find the first maximum length even word from a string, Finding in and out degrees of all vertices in a graph, Stack Data Structure (Introduction and Program), Write Interview
Let’s say, list contains the nodes 29, 34, 43, 56 and 88 and the value of k is 2 than the output will be the alternate nodes till k such as 56 and 88. To reverse the given linked list we will use three extra pointers that will be in the process. Unlike linked lists, one-dimensional arrays and other linear data structures, which are traversed in linear order, trees may be traversed in multiple ways in depth-first order (pre-order, in-order, and post-order) or breadth-first order (level order traversal). For others, like the cell deletion algorithm, the difference is more pronounced in favor of the recursive version. Input : 23 ->1 ->12 ->15 ->23 ->49 ->23 Output : 23 ->49 ->23 ->15 ->12 ->1 ->23. Notice that the only difference between the two methods (besides their different names) is the order of printing the node's value and the recursive call. Given a linked list containing N nodes and a positive integer K where K should be less than or equal to N. The task is to print the last K nodes of the list in reverse order. Iterative method Algorithm. Write a recursive function in C to reverse a linked list. Attention reader! Examples: Input : list : 5-> 15-> 20-> 25 Output : Reversed Linked list : 25-> 20-> 15-> 5 Input : list : 85-> 15-> 4-> 20 Output : Reversed Linked list : 20-> 4-> 15-> 85 Input : list : 85 Output : Reversed Linked list : 85 For printing a list in reverse order, we have already discussed Iterative and Recursive Methods to Reverse. (use reverse function) c. We merge both lists. Auxiliary Space: O(1). In this tutorial, we are going to use iterative approach to solve this problem. Python data structures - List 3. Output Reverse the linked list and return the head of the modified list. A companion tutorial to the previous video, learn how the instructor solved for the challenge of printing a LinkedList in reverse order. The C Program is … Output Reverse the linked list and return the head of the modified list. Reverse linked list iterative Reverse linked list iterative Problem. When sub linked list get printed in reverse order then we will print the head node stored in function stack. Print k values from starting of the array. Pop all elements one by one from stack and print them. To reverse the list itself see this. The following article discusses three iterative approaches to solve the above problem. We will initialize previous and after to NULL initially and current to head of the linked list. Now that you have a good handle on the linked list reversal, let's take a look at the related algorithm and code. Given a singly linked list, we have to write a code to reverse a linked list. Remove middle points in a linked list of line segments. Iterative solution. Write an iterative algorithm in Java-like pseudocode for printing a singly linked list in reverse in O(N) time. To learn how to reverse singly linked lists, you should know: 1. We use cookies to ensure you have the best browsing experience on our website. to learn more, see this post… Solution. Though less concise a iterative solution is more appropriate do to stack overflow (when the list is too long). However, we'll use a general singly-linked list data structure in this tutorial. The task is to print the reverse of a given linked list by using recursive function. Iterative method is the one which generally uses loops that are executed till the condition holds value 1 or true. Auxiliary Space: O(N). State the runtime of your algorithm in big-O notation. C Program to print linked list nodes in reverse order. C Programming Code Editor: Go to the editor Test Data and Expected Output: 5 15 33 49 6 65. public void print() { Node

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