From 1f396281837e1587e1629e563d9e1cfb23d4f506 Mon Sep 17 00:00:00 2001
From: Lanre Adedara <lanre.adedara@shara.co>
Date: Mon, 4 Nov 2024 08:32:45 +0100
Subject: [PATCH] feat: add swift solution 2 implementation to lcof2 problem:
 No.119

---
 .../README.md"                                | 27 +++++++++++++++++++
 .../Solution2.swift"                          | 22 +++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 "lcof2/\345\211\221\346\214\207 Offer II 119. \346\234\200\351\225\277\350\277\236\347\273\255\345\272\217\345\210\227/Solution2.swift"

diff --git "a/lcof2/\345\211\221\346\214\207 Offer II 119. \346\234\200\351\225\277\350\277\236\347\273\255\345\272\217\345\210\227/README.md" "b/lcof2/\345\211\221\346\214\207 Offer II 119. \346\234\200\351\225\277\350\277\236\347\273\255\345\272\217\345\210\227/README.md"
index c38278c1a11ec..a7fc7b66ce480 100644
--- "a/lcof2/\345\211\221\346\214\207 Offer II 119. \346\234\200\351\225\277\350\277\236\347\273\255\345\272\217\345\210\227/README.md"	
+++ "b/lcof2/\345\211\221\346\214\207 Offer II 119. \346\234\200\351\225\277\350\277\236\347\273\255\345\272\217\345\210\227/README.md"	
@@ -360,6 +360,33 @@ var longestConsecutive = function (nums) {
 };
 ```
 
+#### Swift
+
+```swift
+class Solution {
+    func longestConsecutive(_ nums: [Int]) -> Int {
+        let numSet: Set<Int> = Set(nums)
+        var longestStreak = 0
+        
+        for num in nums {
+            if !numSet.contains(num - 1) {
+                var currentNum = num
+                var currentStreak = 1
+                
+                while numSet.contains(currentNum + 1) {
+                    currentNum += 1
+                    currentStreak += 1
+                }
+                
+                longestStreak = max(longestStreak, currentStreak)
+            }
+        }
+        
+        return longestStreak
+    }
+}
+```
+
 <!-- tabs:end -->
 
 <!-- solution:end -->
diff --git "a/lcof2/\345\211\221\346\214\207 Offer II 119. \346\234\200\351\225\277\350\277\236\347\273\255\345\272\217\345\210\227/Solution2.swift" "b/lcof2/\345\211\221\346\214\207 Offer II 119. \346\234\200\351\225\277\350\277\236\347\273\255\345\272\217\345\210\227/Solution2.swift"
new file mode 100644
index 0000000000000..948b3c0030aa9
--- /dev/null
+++ "b/lcof2/\345\211\221\346\214\207 Offer II 119. \346\234\200\351\225\277\350\277\236\347\273\255\345\272\217\345\210\227/Solution2.swift"	
@@ -0,0 +1,22 @@
+class Solution {
+    func longestConsecutive(_ nums: [Int]) -> Int {
+        let numSet: Set<Int> = Set(nums)
+        var longestStreak = 0
+        
+        for num in nums {
+            if !numSet.contains(num - 1) {
+                var currentNum = num
+                var currentStreak = 1
+                
+                while numSet.contains(currentNum + 1) {
+                    currentNum += 1
+                    currentStreak += 1
+                }
+                
+                longestStreak = max(longestStreak, currentStreak)
+            }
+        }
+        
+        return longestStreak
+    }
+}
\ No newline at end of file