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 1/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E4=BA=860844.=20?=
 =?UTF-8?q?=E6=AF=94=E8=BE=83=E5=90=AB=E9=80=80=E6=A0=BC=E7=9A=84=E5=AD=97?=
 =?UTF-8?q?=E7=AC=A6=E4=B8=B2=E5=8F=8C=E6=8C=87=E9=92=88=E6=96=B9=E6=B3=95?=
 =?UTF-8?q?=E7=9A=84Java=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
 

From d1ea59aebd4659274165c5a352166696275faddc Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Thu, 31 Mar 2022 22:14:20 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=EF=BC=880093.=E5=A4=8D?=
 =?UTF-8?q?=E5=8E=9FIP=E5=9C=B0=E5=9D=80.md=EF=BC=89=EF=BC=9A=E5=A2=9E?=
 =?UTF-8?q?=E5=8A=A0typescript=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0093.复原IP地址.md | 39 +++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/problems/0093.复原IP地址.md b/problems/0093.复原IP地址.md
index 714dcb4f..7910fc50 100644
--- a/problems/0093.复原IP地址.md
+++ b/problems/0093.复原IP地址.md
@@ -455,6 +455,45 @@ var restoreIpAddresses = function(s) {
 };
 ```
 
+## TypeScript
+
+```typescript
+function isValidIpSegment(str: string): boolean {
+    let resBool: boolean = true;
+    let tempVal: number = Number(str);
+    if (
+        str.length === 0 || isNaN(tempVal) ||
+        tempVal > 255 || tempVal < 0 ||
+        (str.length > 1 && str[0] === '0')
+    ) {
+        resBool = false;
+    }
+    return resBool;
+}
+function restoreIpAddresses(s: string): string[] {
+    const resArr: string[] = [];
+    backTracking(s, 0, []);
+    return resArr;
+    function backTracking(s: string, startIndex: number, route: string[]): void {
+        let length: number = s.length;
+        if (route.length === 4 && startIndex >= length) {
+            resArr.push(route.join('.'));
+            return;
+        }
+        if (route.length === 4 || startIndex >= length) return;
+        let tempStr: string = '';
+        for (let i = startIndex + 1; i <= Math.min(length, startIndex + 3); i++) {
+            tempStr = s.slice(startIndex, i);
+            if (isValidIpSegment(tempStr)) {
+                route.push(s.slice(startIndex, i));
+                backTracking(s, i, route);
+                route.pop();
+            }
+        }
+    }
+};
+```
+
 ## Go 
 
 回溯（对于前导 0的IP（特别注意s[startIndex]=='0'的判断，不应该写成s[startIndex]==0，因为s截取出来不是数字））