Write a C function that moves last element to front in a given Singly Linked List. For example, if the given Linked List is 1->2->3->4->5, then the function should change the list to 5->1->2->3->4.
Traverse the list till last node. Use two pointers: one to store the address of last node and other for address of second last node. After the end of loop do following operations.
i) Make second last as last (secLast->next = NULL).
ii) Set next of last as head (last->next = *head_ref).
iii) Make last as head ( *head_ref = last)
Linked list before moving last to front 1 2 3 4 5 Linked list after removing last to front 5 1 2 3 4
Time Complexity: O(n) where n is the number of nodes in the given Linked List.
Please write comments if you find any bug in above code/algorithm, or find other ways to solve the same problem.
- Find the middle of a given linked list in C and Java
- Program for n'th node from the end of a Linked List
- Write a function to get Nth node in a Linked List
- Given only a pointer/reference to a node to be deleted in a singly linked list, how do you delete it?
- Detect loop in a linked list
- Write a function to delete a Linked List
- Write a function that counts the number of times a given int occurs in a Linked List
- Reverse a linked list
- Given only a pointer to a node to be deleted in a singly linked list, how do you delete it?
- Write a function to get the intersection point of two Linked Lists.
- Function to check if a singly linked list is palindrome
- The Great Tree-List Recursion Problem.
- Clone a linked list with next and random pointer | Set 1
- Memory efficient doubly linked list
- Given a linked list which is sorted, how will you insert in sorted way
Improved By : Soumith Bsv