Suppose a Java linked list implementation contains a reference to the (1).pdf
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In a Java implementation of a doubly-linked list, certain operations can be performed in O(1) time due to the presence of both forward and backward references. Specifically, the insertion of an item immediately before the cursor position can be efficiently executed in O(1) time in a doubly-linked list, but in a singly-linked list, this same operation cannot be better than O(n) due to the need to traverse the list. Other operations mentioned may have different time complexities depending on the structure of the list.
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Suppose a Java linked list implementation contains a reference to the (1).pdf
- 1. Suppose a Java linked list implementation contains a reference to the first node (head), a reference to the tail (last node), an integer that tracks the number of items in the list, two references to nodes that record the cursor position and the predecessor of the cursor position, respectively, and no other instance variables. Which one of the following operations can have an O(1) implementation for a doubly-linked list, but cannot be implemented in better than O(n) time for a singly-linked list? Group of answer choices Insertion of an item immediately before the position of the cursor. Deletion at the beginning of the list. Insertion at the end of the list. Deletion at the end of the list. Insertion at the beginning of the list. Insertion of an item immediately after the position of the cursor.