Question: please help and explain. 20. (4 marks) Consider the following linked list, and node r Consider the following code intended to add node r to

please help and explain. 20. (4 marks) Consider the following linked list, please help and explain.

20. (4 marks) Consider the following linked list, and node r Consider the following code intended to add node r to the end of the list. successor=pgetNext();successor=r; Draw the linked list resulting after the above code is executed and indicate whether the code is correct or not

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