876

Author: ForLoopCodes

876. Middle of The Linked List.js

@@ -0,0 +1,20 @@
+/**
+ * Definition for singly-linked list.
+ * function ListNode(val, next) {
+ *     this.val = (val===undefined ? 0 : val)
+ *     this.next = (next===undefined ? null : next)
+ * }
+ */
+/**
+ * @param {ListNode} head
+ * @return {ListNode}
+ */
+var middleNode = function (head) {
+  middle = head;
+  end = head;
+  while (end && end.next) {
+    middle = middle.next;
+    end = end.next.next;
+  }
+  return middle;
+};