From 9ecc7e9be3d54469c2828a4093746857a4c1d157 Mon Sep 17 00:00:00 2001
From: Lanre Adedara <lanre.adedara@shara.co>
Date: Thu, 18 Apr 2024 09:01:21 +0100
Subject: [PATCH 1/2] Swift implementation for LCCI 02.02

Signed-off-by: Lanre Adedara
---
 .../02.02.Kth Node From End of List/README.md | 34 +++++++++++++++++++
 .../README_EN.md                              | 34 +++++++++++++++++++
 .../Solution.swift                            | 31 +++++++++++++++++
 3 files changed, 99 insertions(+)
 create mode 100644 lcci/02.02.Kth Node From End of List/Solution.swift

diff --git a/lcci/02.02.Kth Node From End of List/README.md b/lcci/02.02.Kth Node From End of List/README.md
index 28b6653c49462..785680474ed4a 100644
--- a/lcci/02.02.Kth Node From End of List/README.md	
+++ b/lcci/02.02.Kth Node From End of List/README.md	
@@ -203,6 +203,40 @@ var kthToLast = function (head, k) {
 };
 ```
 
+```swift
+/**
+ * Definition for singly-linked list.
+ * public class ListNode {
+ *     var val: Int
+ *     var next: ListNode?
+ *     init(_ x: Int, _ next: ListNode? = nil) {
+ *         self.val = x
+ *         self.next = next
+ *     }
+ * }
+ */
+
+class Solution {
+    func kthToLast(_ head: ListNode?, _ k: Int) -> Int {
+        var slow = head
+        var fast = head
+        var k = k
+        
+        while k > 0 {
+            fast = fast?.next
+            k -= 1
+        }
+        
+        while fast != nil {
+            slow = slow?.next
+            fast = fast?.next
+        }
+        
+        return slow?.val ?? 0
+    }
+}
+```
+
 <!-- tabs:end -->
 
 <!-- end -->
diff --git a/lcci/02.02.Kth Node From End of List/README_EN.md b/lcci/02.02.Kth Node From End of List/README_EN.md
index d994e8cab5f21..c0c9085cafc0d 100644
--- a/lcci/02.02.Kth Node From End of List/README_EN.md	
+++ b/lcci/02.02.Kth Node From End of List/README_EN.md	
@@ -205,6 +205,40 @@ var kthToLast = function (head, k) {
 };
 ```
 
+```swift
+/**
+ * Definition for singly-linked list.
+ * public class ListNode {
+ *     var val: Int
+ *     var next: ListNode?
+ *     init(_ x: Int, _ next: ListNode? = nil) {
+ *         self.val = x
+ *         self.next = next
+ *     }
+ * }
+ */
+
+class Solution {
+    func kthToLast(_ head: ListNode?, _ k: Int) -> Int {
+        var slow = head
+        var fast = head
+        var k = k
+        
+        while k > 0 {
+            fast = fast?.next
+            k -= 1
+        }
+        
+        while fast != nil {
+            slow = slow?.next
+            fast = fast?.next
+        }
+        
+        return slow?.val ?? 0
+    }
+}
+```
+
 <!-- tabs:end -->
 
 <!-- end -->
diff --git a/lcci/02.02.Kth Node From End of List/Solution.swift b/lcci/02.02.Kth Node From End of List/Solution.swift
new file mode 100644
index 0000000000000..d42d107223b2b
--- /dev/null
+++ b/lcci/02.02.Kth Node From End of List/Solution.swift	
@@ -0,0 +1,31 @@
+/**
+ * Definition for singly-linked list.
+ * public class ListNode {
+ *     var val: Int
+ *     var next: ListNode?
+ *     init(_ x: Int, _ next: ListNode? = nil) {
+ *         self.val = x
+ *         self.next = next
+ *     }
+ * }
+ */
+
+class Solution {
+    func kthToLast(_ head: ListNode?, _ k: Int) -> Int {
+        var slow = head
+        var fast = head
+        var k = k
+        
+        while k > 0 {
+            fast = fast?.next
+            k -= 1
+        }
+        
+        while fast != nil {
+            slow = slow?.next
+            fast = fast?.next
+        }
+        
+        return slow?.val ?? 0
+    }
+}
\ No newline at end of file

From 167f2b14bb48102518390db9f6bdcf0deea413c7 Mon Sep 17 00:00:00 2001
From: klever34 <klever34@users.noreply.github.com>
Date: Thu, 18 Apr 2024 08:49:53 +0000
Subject: [PATCH 2/2] style: format code and docs with prettier

---
 lcci/02.02.Kth Node From End of List/README.md    | 6 +++---
 lcci/02.02.Kth Node From End of List/README_EN.md | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lcci/02.02.Kth Node From End of List/README.md b/lcci/02.02.Kth Node From End of List/README.md
index 785680474ed4a..8b013264d05a0 100644
--- a/lcci/02.02.Kth Node From End of List/README.md	
+++ b/lcci/02.02.Kth Node From End of List/README.md	
@@ -221,17 +221,17 @@ class Solution {
         var slow = head
         var fast = head
         var k = k
-        
+
         while k > 0 {
             fast = fast?.next
             k -= 1
         }
-        
+
         while fast != nil {
             slow = slow?.next
             fast = fast?.next
         }
-        
+
         return slow?.val ?? 0
     }
 }
diff --git a/lcci/02.02.Kth Node From End of List/README_EN.md b/lcci/02.02.Kth Node From End of List/README_EN.md
index c0c9085cafc0d..785b3fb5a598b 100644
--- a/lcci/02.02.Kth Node From End of List/README_EN.md	
+++ b/lcci/02.02.Kth Node From End of List/README_EN.md	
@@ -223,17 +223,17 @@ class Solution {
         var slow = head
         var fast = head
         var k = k
-        
+
         while k > 0 {
             fast = fast?.next
             k -= 1
         }
-        
+
         while fast != nil {
             slow = slow?.next
             fast = fast?.next
         }
-        
+
         return slow?.val ?? 0
     }
 }