Class Solution
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public final class Solution2095 - Delete the Middle Node of a Linked List\.
Medium
You are given the
headof a linked list. Delete the middle node , and return theheadof the modified linked list.The middle node of a linked list of size
nis the <code>⌊n / 2⌋<sup>th</sup></code> node from the start using 0-based indexing , where⌊x⌋denotes the largest integer less than or equal tox.For
n=1,2,3,4, and5, the middle nodes are0,1,1,2, and2, respectively.
Example 1:
Input: head = 1,3,4,7,1,2,6
Output: 1,3,4,1,2,6
Explanation:
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.
Example 2:
Input: head = 1,2,3,4
Output: 1,2,4
Explanation:
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.
Example 3:
Input: head = 2,1
Output: 2
Explanation:
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 <code>1, 10<sup>5</sup></code>.
<code>1 <= Node.val <= 10<sup>5</sup></code>
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Constructor Summary
Constructors Constructor Description Solution()
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Method Summary
Modifier and Type Method Description final ListNodedeleteMiddle(ListNode head)-
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Method Detail
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deleteMiddle
final ListNode deleteMiddle(ListNode head)
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