Create 876. Middle of the Linked List.java

Author: SharmaTushar1

java/876. Middle of the Linked List.java

@@ -0,0 +1,12 @@
+//fast and slow pointer
+class Solution {
+    public ListNode middleNode(ListNode head) {
+        ListNode slow = head;
+        ListNode fast = head;
+        while (fast!=null && fast.next!=null) {
+            fast = fast.next.next;
+            slow = slow.next;
+        }
+        return slow;
+    }
+}