add notes to 234

Li Li · Li Li · commit a05689bfcedc · 2017-08-28T10:39:43.000-04:00
diff --git a/Algorithms Basics/Chapter 2. Linked List/234. Palindrome Linked List.cs b/Algorithms Basics/Chapter 2. Linked List/234. Palindrome Linked List.cs
@@ -1,3 +1,4 @@
+// reverse the second half and use two pointer to compare first and second half
 public class Solution {
     public bool IsPalindrome(ListNode head) {
         if (head == null || head.next == null) {

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+// reverse the second half and use two pointer to compare first and second half`
`1`	`2`	`public class Solution {`
`2`	`3`	`public bool IsPalindrome(ListNode head) {`
`3`	`4`	`if (head == null \|\| head.next == null) {`