Rotating a linked list by some places clockwise will take a time complexity of?*2 pointsO(1)O(n)O(n^2)None of the above
Question
Rotating a linked list by some places clockwise will take a time complexity of?
2 points
- O(1)
- O(n)
- O(n^2)
- None of the above
Solution
To determine the time complexity of rotating a linked list by some places clockwise, we need to consider the steps involved in the process.
-
Traverse to the (n-k)th node in the linked list, where n is the total number of nodes and k is the number of places to rotate.
- This step requires traversing through the linked list, which takes O(n) time.
-
Update the pointers to rotate the list.
- This step involves updating the pointers of the (n-k)th node and the last node in the original list, which takes constant time, O(1).
Therefore, the overall time complexity of rotating a linked list by some places clockwise is O(n).
Hence, the correct answer is O(n).
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