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You could definitely just return tmp, and in fact would be more efficient. I just did it this way for my own understanding of making it clear what my intention was. The intention being: if the list is empty, assign our new node (tmp) to the head.
Insert a Node at the Tail of a Linked List
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You could definitely just return tmp, and in fact would be more efficient. I just did it this way for my own understanding of making it clear what my intention was. The intention being: if the list is empty, assign our new node (tmp) to the head.