feat: add swift implementation to lcof problem: No.06 (#2853)

Author: klever34

lcof/面试题06. 从尾到头打印链表/README.md

@@ -402,6 +402,33 @@ var reversePrint = function (head) {
 };
 ```
 
+#### Swift
+
+```swift
+/* public class ListNode {
+*    public var val: Int
+*    public var next: ListNode?
+*    public init(_ val: Int) {
+*        self.val = val
+*        self.next = nil
+*    }
+* }
+*/
+
+class Solution {
+    func reversePrint(_ head: ListNode?) -> [Int] {
+        var stack = [Int]()
+        var current = head
+        while let node = current {
+            stack.append(node.val)
+            current = node.next
+        }
+
+        return stack.reversed()
+    }
+}
+```
+
 <!-- tabs:end -->
 
 <!-- solution:end -->

lcof/面试题06. 从尾到头打印链表/Solution.swift

@@ -0,0 +1,22 @@
+/* public class ListNode {
+*    public var val: Int
+*    public var next: ListNode?
+*    public init(_ val: Int) {
+*        self.val = val
+*        self.next = nil
+*    }
+* }
+*/
+
+class Solution {
+    func reversePrint(_ head: ListNode?) -> [Int] {
+        var stack = [Int]()
+        var current = head
+        while let node = current {
+            stack.append(node.val)
+            current = node.next
+        }
+        
+        return stack.reversed()
+    }
+}