From b6688d7a8949694c2988d48c79f4ebd75d5229ed Mon Sep 17 00:00:00 2001
From: Qianzhengjun <55390356+Qianzhengjun@users.noreply.github.com>
Date: Thu, 31 Mar 2022 11:37:47 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E4=BA=860844.=20=E6=AF=94?=
 =?UTF-8?q?=E8=BE=83=E5=90=AB=E9=80=80=E6=A0=BC=E7=9A=84=E5=AD=97=E7=AC=A6?=
 =?UTF-8?q?=E4=B8=B2=E5=8F=8C=E6=8C=87=E9=92=88=E6=96=B9=E6=B3=95=E7=9A=84?=
 =?UTF-8?q?Java=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0844.比较含退格的字符串.md | 30 ++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/problems/0844.比较含退格的字符串.md b/problems/0844.比较含退格的字符串.md
index 00d52e42..0d83d425 100644
--- a/problems/0844.比较含退格的字符串.md
+++ b/problems/0844.比较含退格的字符串.md
@@ -185,6 +185,36 @@ class Solution {
 }
 ```
 
+双指针：
+
+```java
+class Solution {
+public static boolean backspaceCompare(String s, String t) {
+        char[] sarray = s.toCharArray();
+        char[] tarray = t.toCharArray();
+        return generate(sarray).equals(generate(tarray));
+    }
+    public static String generate(char[] a){
+        int slow = -1;
+        int fast = 0;
+        if(a.length == 1){
+            return new String(a);
+        } else{
+            for(fast = 0; fast < a.length; fast++){
+                if(a[fast] != '#')
+                    a[++slow] = a[fast];
+                else{
+                    if(slow >= 0)
+                        slow--;
+                }
+            }
+            return new String(a,0,slow + 1);
+        }
+    }
+}
+```
+
+
 
 ### python