Modify a data structure : Remove Head

The video tutorial explains how to implement a 'remove head' function for a linked list. It covers handling both empty and non-empty lists, rewiring pointers, and ensuring the function returns the correct value. The tutorial includes testing the function with examples to verify its correctness. The next video will cover the 'remove tail' function.

What should the remove head function return when the linked list is empty?

• An error message

• Null

• The value of the first node

• The value of the last node

What is the first step when removing the head from a non-empty linked list?

• Delete the tail node

• Add a new node to the head

• Save the value of the head node

• Reverse the linked list

After saving the head node's value, what is the next step in the remove head function?

• Rewire the pointers to the next node

• Add a new node to the tail

• Reverse the linked list

• Set the tail to null

What happens to the previous property of the new head node if it exists?

• It remains unchanged

• It is set to the tail node

• It is set to null

• It is set to the previous node

What value should be returned after successfully removing the head node?

• The value of the removed node

• The value of the tail node

• The value of the new head node

• Null

What is the expected output after removing the head node with value 2000?

• 1000

• 2000

• 3000

• Null

What will be the focus of the next video after the remove head function?

• Creating the remove tail method

• Reversing the linked list

• Adding nodes to the head

• Sorting the linked list