Class Solution

  • All Implemented Interfaces:

    
    public final class Solution
    
                        

    2095 - Delete the Middle Node of a Linked List\.

    Medium

    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 <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 to x.

    • For n = 1, 2, 3, 4, and 5, the middle nodes are 0, 1, 1, 2, and 2, 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>

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
    • Field Summary

      Fields 
      Modifier and Type Field Description
    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()
    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
    • Method Summary

      Modifier and Type Method Description
      final ListNode deleteMiddle(ListNode head)
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait