Leetcode Problem 61. Rotate List

61. Rotate List

Leetcode Solutions

Check if the head is null or k is 0, return head as is.
Initialize a variable to keep track of the length of the list and set it to 1 (since we start with the head).
Traverse the list to find the tail and calculate the length.
Connect the tail to the head to form a ring.
Find the new tail, which is at position (n - k % n - 1) from the head.
Find the new head, which is the next node of the new tail.
Break the ring by setting new_tail.next to None.
Return the new head as the start of the rotated list.

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