From b17cdcd283416d63093519f7f804fe364b0f5206 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9E=81=E5=AE=A2=E5=AD=A6=E4=BC=9F?= <qxuwei@yeah.net>
Date: Thu, 26 Aug 2021 14:59:02 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=20242.=E6=9C=89=E6=95=88?=
 =?UTF-8?q?=E7=9A=84=E5=AD=97=E6=AF=8D=E5=BC=82=E4=BD=8D=E8=AF=8D=20Swift?=
 =?UTF-8?q?=E7=89=88=E6=9C=AC?=
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---
 problems/0242.有效的字母异位词.md | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/problems/0242.有效的字母异位词.md b/problems/0242.有效的字母异位词.md
index 15bf14ca..1b6b3109 100644
--- a/problems/0242.有效的字母异位词.md
+++ b/problems/0242.有效的字母异位词.md
@@ -198,6 +198,29 @@ var isAnagram = function(s, t) {
 };
 ```
 
+Swift：
+```Swift
+func isAnagram(_ s: String, _ t: String) -> Bool {
+    if s.count != t.count {
+        return false
+    }
+    var record = Array(repeating: 0, count: 26)
+    let aUnicodeScalar = "a".unicodeScalars.first!.value
+    for c in s.unicodeScalars {
+        record[Int(c.value - aUnicodeScalar)] += 1
+    }
+    for c in t.unicodeScalars {
+        record[Int(c.value - aUnicodeScalar)] -= 1
+    }
+    for value in record {
+        if value != 0 {
+            return false
+        }
+    }
+    return true
+}
+```
+
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