Linked List Coding Challenges

Reverse the order of elements in an array representing a linked list. Covers two-pointer swap technique and the relationship to linked list reversal.

Find the value of the nth node from the end of a linked list. Covers the offset two-pointer technique and bounds checking.

Find the middle element of an array representing a linked list. Covers the two-pointer technique and odd/even length handling.

Remove all occurrences of a target value from a linked list represented as an array. Teaches element filtering and the pointer-update pattern for node removal.

Merge two sorted arrays into one sorted array using the two-pointer technique. Teaches the merge step of merge sort and the comparison-based merging pattern.

Check whether an array representing a linked list is a palindrome using two pointers. Covers odd/even length handling and the empty array edge case.