package q2095

type ListNode struct {
	Val  int
	Next *ListNode
}

func deleteMiddle(head *ListNode) *ListNode {
	stub := &ListNode{Next: head}

	fast, slow := stub, stub
	for fast.Next != nil && fast.Next.Next != nil {
		fast = fast.Next.Next
		slow = slow.Next
	}
	if slow.Next != nil {
		slow.Next = slow.Next.Next
	}
	return stub.Next
}

var _ = deleteMiddle