Search⌘ K
AI Features

Solution: Rotate List

Explore how to rotate a singly linked list to the right by k positions using an in-place approach. Understand techniques to compute list length, form a circular list, and determine the new head efficiently. This lesson helps you implement a solution with linear time complexity and constant space usage, improving your linked list manipulation skills.

Statement

You are given the head of a singly linked list and a non-negative integer k. Your task is to rotate the list to the right by k positions.

A right rotation by 1 means the last node becomes the new head, and every other node shifts one position to the right.

Return the head of the rotated linked list.

Constraints:

  • The number of nodes in the list is in the range [0, ...