From 3a51b65106147ccf6c503cdd443a36bcacbe4009 Mon Sep 17 00:00:00 2001
From: YDLIN <1924723909@qq.com>
Date: Fri, 27 Aug 2021 18:10:28 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A00541.=20=E5=8F=8D?=
 =?UTF-8?q?=E8=BD=AC=E5=AD=97=E7=AC=A6=E4=B8=B2II=20Swift=E7=89=88?=
 =?UTF-8?q?=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0541.反转字符串II.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/problems/0541.反转字符串II.md b/problems/0541.反转字符串II.md
index 02713c65..bdcb0ff8 100644
--- a/problems/0541.反转字符串II.md
+++ b/problems/0541.反转字符串II.md
@@ -226,6 +226,28 @@ var reverseStr = function(s, k) {
 
 ```
 
+Swift:
+
+```swift
+func reverseStr(_ s: String, _ k: Int) -> String {
+    var ch = Array(s)
+
+    for i in stride(from: 0, to: ch.count, by: 2 * k) {
+        var left = i
+        var right = min(s.count - 1, left + k - 1)
+      
+        while left < right {
+            (ch[left], ch[right]) = (ch[right], ch[left])
+            left += 1
+            right -= 1
+        }
+    }
+    return String(ch)
+}
+```
+
+
+
 
 
 -----------------------

From 3fcf18b0489295c81d11524945ad7f494a8decc2 Mon Sep 17 00:00:00 2001
From: YDLIN <1924723909@qq.com>
Date: Sat, 28 Aug 2021 11:03:51 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E5=89=91=E6=8C=87Offer?=
 =?UTF-8?q?=2005.=E6=9B=BF=E6=8D=A2=E7=A9=BA=E6=A0=BC=20Swift=E7=89=88?=
 =?UTF-8?q?=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/剑指Offer05.替换空格.md | 43 ++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/problems/剑指Offer05.替换空格.md b/problems/剑指Offer05.替换空格.md
index 3294a16b..47907319 100644
--- a/problems/剑指Offer05.替换空格.md
+++ b/problems/剑指Offer05.替换空格.md
@@ -264,6 +264,49 @@ javaScript:
 };
 ```
 
+Swift:
+
+```swift
+func replaceSpace(_ s: String) -> String {
+    var strArr = Array(s)
+    var count = 0
+
+    // 统计空格的个数
+    for i in strArr {
+        if i == " " {
+            count += 1
+        }
+    }
+    // left 指向旧数组的最后一个元素
+    var left = strArr.count - 1
+    // right 指向扩容后数组的最后一个元素（这里还没对数组进行实际上的扩容）
+    var right = strArr.count + count * 2 - 1
+
+    // 实际对数组扩容
+    for _ in 0..<(count * 2) {
+        strArr.append(" ")
+    }
+
+    while left < right {
+        if strArr[left] == " " {
+            strArr[right] = "0"
+            strArr[right - 1] = "2"
+            strArr[right - 2] = "%"
+            left -= 1
+            right -= 3
+        } else {
+            strArr[right] = strArr[left]
+            left -= 1
+            right -= 1
+        }
+    }
+
+    return String(strArr)
+}
+```
+
+
+
 
 
 -----------------------