How to Solve Delete the Middle Node of a Linked List Problem
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Delete the Middle Node of a Linked List
You are given the head of a linked list. 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 ⌊n / 2⌋th node from the start using ...
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Understanding the Delete the Middle Node of a Linked List Problem
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Problem Statement
You are given the head of a linked list. 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 ⌊n / 2⌋th node from the start using 0-based indexing, where ⌊x⌋ denotes the largest integer less than or equal to x. For n = 1, 2, 3, 4, and 5, the middle nodes are 0, 1, 1, 2, and 2, respectively.
Delete the Middle Node of a Linked List
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Examples
head = [1,3,4,7,1,2,6][1,3,4,1,2,6]The above figure represents the given linked list. The indices of the nodes are written below. Since n = 7, node 3 with value 7 is the middle node, which is marked in red. We return the new list after removing this node.
head = [1,2,3,4][1,2,4]The above figure represents the given linked list. For n = 4, node 2 with value 3 is the middle node, which is marked in red.
head = [2,1][2]The above figure represents the given linked list. For n = 2, node 1 with value 1 is the middle node, which is marked in red. Node 0 with value 2 is the only node remaining after removing node 1.
Constraints
The number of nodes in the list is in the range [1, 105].1 <= Node.val <= 105How Interview Coder Helps with Leetcode Problems
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