From d1a5c9cc908e78ffdb82f5acf6a2ff297254e2fa Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Tue, 18 Jan 2022 13:25:50 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=EF=BC=88=E5=89=91?=
 =?UTF-8?q?=E6=8C=87Offer58-II.=E5=B7=A6=E6=97=8B=E8=BD=AC=E5=AD=97?=
 =?UTF-8?q?=E7=AC=A6=E4=B8=B2.md=EF=BC=89=EF=BC=9A=E5=A2=9E=E5=8A=A0typesc?=
 =?UTF-8?q?ript=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../剑指Offer58-II.左旋转字符串.md    | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/problems/剑指Offer58-II.左旋转字符串.md b/problems/剑指Offer58-II.左旋转字符串.md
index c391d661..2fbd2888 100644
--- a/problems/剑指Offer58-II.左旋转字符串.md
+++ b/problems/剑指Offer58-II.左旋转字符串.md
@@ -209,6 +209,31 @@ var reverseLeftWords = function(s, n) {
 };
 ```
 
+TypeScript：
+
+```typescript
+function reverseLeftWords(s: string, n: number): string {
+    /** Utils */
+    function reverseWords(strArr: string[], start: number, end: number): void {
+        let temp: string;
+        while (start < end) {
+            temp = strArr[start];
+            strArr[start] = strArr[end];
+            strArr[end] = temp;
+            start++;
+            end--;
+        }
+    }
+    /** Main code */
+    let strArr: string[] = s.split('');
+    let length: number = strArr.length;
+    reverseWords(strArr, 0, length - 1);
+    reverseWords(strArr, 0, length - n - 1);
+    reverseWords(strArr, length - n, length - 1);
+    return strArr.join('');
+};
+```
+
 Swift:
 
 ```swift

From 76893360a9bc77a61ac0f620441680f4ba56a3d9 Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Tue, 18 Jan 2022 13:30:39 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=EF=BC=88=E5=89=91?=
 =?UTF-8?q?=E6=8C=87Offer58-II.=E5=B7=A6=E6=97=8B=E8=BD=AC=E5=AD=97?=
 =?UTF-8?q?=E7=AC=A6=E4=B8=B2.md=EF=BC=89=EF=BC=9AJS=E7=89=88=E6=9C=AC?=
 =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E6=96=B0=E8=A7=A3=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../剑指Offer58-II.左旋转字符串.md    | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/problems/剑指Offer58-II.左旋转字符串.md b/problems/剑指Offer58-II.左旋转字符串.md
index 2fbd2888..61391274 100644
--- a/problems/剑指Offer58-II.左旋转字符串.md
+++ b/problems/剑指Offer58-II.左旋转字符串.md
@@ -209,6 +209,36 @@ var reverseLeftWords = function(s, n) {
 };
 ```
 
+版本二（在原字符串上操作）：
+
+```js
+/**
+ * @param {string} s
+ * @param {number} n
+ * @return {string}
+ */
+var reverseLeftWords = function (s, n) {
+    /** Utils */
+    function reverseWords(strArr, start, end) {
+        let temp;
+        while (start < end) {
+            temp = strArr[start];
+            strArr[start] = strArr[end];
+            strArr[end] = temp;
+            start++;
+            end--;
+        }
+    }
+    /** Main code */
+    let strArr = s.split('');
+    let length = strArr.length;
+    reverseWords(strArr, 0, length - 1);
+    reverseWords(strArr, 0, length - n - 1);
+    reverseWords(strArr, length - n, length - 1);
+    return strArr.join('');
+};
+```
+
 TypeScript：
 
 ```typescript