The time complexity of deleting the last node of a doubly linked list referenced as TAIL is O(1).

Here are the steps:

1. Access the last node directly through the TAIL reference, which takes constant time.

2. Update the TAIL reference to the previous node of the current TAIL, which also takes constant time.

3. Remove the last node (current TAIL) from memory, which again takes constant time.

Since all these operations take constant time, the overall time complexity is O(1).

Question

The time complexity of deleting the last node of a doubly linked list referenced as TAIL is O(1).

Here are the steps:

1. Access the last node directly through the TAIL reference, which takes constant time.

2. Update the TAIL reference to the previous node of the current TAIL, which also takes constant time.

3. Remove the last node (current TAIL) from memory, which again takes constant time.

Since all these operations take constant time, the overall time complexity is O(1).

Knowee AI · Accepted Answer

The time complexity of deleting the last node of a doubly linked list referenced as TAIL is O(1).

Here are the steps:

1. Access the last node directly through the TAIL reference, which takes constant time.

2. Update the TAIL reference to the previous node of the current TAIL, which also takes constant time.

3. Remove the last node (current TAIL) from memory, which again takes constant time.

Since all these operations take constant time, the overall time complexity is O(1).

What is the time complexity of deleting the last node of a doubly linked list referenced as TAIL?