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Linked Lists

Watch linked list operations unfold — reverse, merge, detect cycles, and more.

Categories

All Problems●Sorting Algorithms●Searching Algorithms●Arrays & Hashing●Sliding Window●Linked Lists●Trees●Graphs●Dynamic Programming●Stacks & Queues●Heaps & Priority Queues●Backtracking●Trie & Advanced
2 problems available in this category.

Reverse Linked List

easy

Interactive visualization for Reversing a Linked List. Learn how to invert pointers iteratively in O(n) time and O(1) space.

●Linked Listslinked-listlinked-listrecursion
O(O(n))•O(O(1))
Visualize

Merge Two Sorted Lists

easy

Interactive visualization for merging two sorted linked lists into one. Learn the typical O(n+m) two-pointer technique.

●Linked Listslinked-listlinked-listrecursion
O(O(n + m))•O(O(1))
Visualize