The steps involved in inserting a new item at the beginning of an unordered linked list are ____.
A)1.Create a new node.
2.Insert the node before first.
3.Increment the counter by 1.
B)1.Create a new node.
2.Store the new item in the new node.
3.Insert the node before first.
4.Increment the counter by 1.
C)1.Create a new node.
2.Store the new item in the new node.
3.Insert the node before first.
D)1.Create a new node.
2.Store the new item in the new node.
3.Insert the node before first.
4.Decrement the counter by 1.

Question

The steps involved in inserting a new item at the beginning of an unordered linked list are ____.
A)1.Create a new node.
2.Insert the node before first.
3.Increment the counter by 1.
B)1.Create a new node.
2.Store the new item in the new node.
3.Insert the node before first.
4.Increment the counter by 1.
C)1.Create a new node.
2.Store the new item in the new node.
3.Insert the node before first.
D)1.Create a new node. 
2.Store the new item in the new node.
3.Insert the node before first.
4.Decrement the counter by 1.

Quizplus · Accepted Answer

To insert a new item at the beginning of an unordered linked list, we need to create a new node, store the new item in that node, insert the node before the first node of the linked list, and then increment the counter by 1. Option B includes all these steps in the correct order, making it the best choice. Option A is incorrect because it does not mention storing the new item in the new node, while Option C is incorrect because it does not specify how to update the counter. Option D is incorrect because decrementing the counter by 1 for inserting a new item at the beginning of the list does not make sense.

The Steps Involved in Inserting a New Item at the Beginning