add new solutions

solutions/20/q2095/solution.go

@@ -0,0 +1,22 @@
+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