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Delete the Middle Node of a Linked List

You are given the head of a singly linked list.\ Your task is to **delete the middle node** and return the head of the modified linked list. The middle node of a linked list of size $N$ is the node at index $⌊N / 2⌋$ (0-based indexing), where ⌊x⌋ is the floor of $x$. If the list contains only **one node**, delete it and return an **empty list** ($NULL$). ## Function Declaration ### Function N

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solution.cppC++17

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