Given a linked list with a loop, the task is to find whether it is palindrome or not. You are not allowed to remove the loop.
Input : 1 -> 2 -> 3 -> 2 /|\ \|/ ------- 1 Output: Palindrome Linked list is 1 2 3 2 1 which is a palindrome. Input : 1 -> 2 -> 3 -> 4 /|\ \|/ ------- 1 Output: Palindrome Linked list is 1 2 3 4 1 which is a not palindrome.
- Detect the loop using Floyd Cycle Detection Algorithm.
- Then find the starting node of loop as discussed in this
- Check linked list is palindrome or not as discussed in this
Below is the implementation.
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- Check if a doubly linked list of characters is palindrome or not
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- Detect loop in a linked list
- Make a loop at k-th position in a linked list
- Detect and Remove Loop in a Linked List
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- Find first node of loop in a linked list
- Check if a linked list is Circular Linked List
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- Check if a Linked List is Pairwise Sorted
- Check if elements of Linked List are present in pair
- Check if linked list is sorted (Iterative and Recursive)
- Check if a pair with given product exists in Linked list