Linked Lists intro time O(n) space O(1)
Traverse a Linked List
A linked list is a chain of nodes; each node holds a value and a pointer to the next one. You cannot jump to index 5 — you must start at the head and follow pointers until you reach ∅.
A list of 4 nodes. Each points to the next; the last points to ∅.
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Practice
Machine twin: /dsa-viz-v2/linked-list-traverse.json — the full deterministic run as structured data.