diff --git a/lcci/03.04.Implement Queue using Stacks/README.md b/lcci/03.04.Implement Queue using Stacks/README.md
index b20d26f7adcf1..d2b43370b5fb2 100644
--- a/lcci/03.04.Implement Queue using Stacks/README.md	
+++ b/lcci/03.04.Implement Queue using Stacks/README.md	
@@ -299,6 +299,52 @@ impl MyQueue {
 */
 ```
 
+```swift
+class MyQueue {
+ private var stk1: [Int] = []
+ private var stk2: [Int] = []
+
+ init() {}
+
+ func push(_ x: Int) {
+ stk1.append(x)
+ }
+
+ @discardableResult
+ func pop() -> Int {
+ move()
+ return stk2.removeLast()
+ }
+
+ func peek() -> Int {
+ move()
+ return stk2.last!
+ }
+
+ func empty() -> Bool {
+ return stk1.isEmpty && stk2.isEmpty
+ }
+
+ private func move() {
+ if stk2.isEmpty {
+ while !stk1.isEmpty {
+ stk2.append(stk1.removeLast())
+ }
+ }
+ }
+}
+
+/**
+ * Your MyQueue object will be instantiated and called as such:
+ * let obj = new MyQueue();
+ * obj.push(x);
+ * let param_2 = obj.pop();
+ * let param_3 = obj.peek();
+ * var myValue : Bool
+ * myValue = obj.empty();
+ */
+```
+
 
 
 
diff --git a/lcci/03.04.Implement Queue using Stacks/README_EN.md b/lcci/03.04.Implement Queue using Stacks/README_EN.md
index 78b7e19cf7331..c9427f964e505 100644
--- a/lcci/03.04.Implement Queue using Stacks/README_EN.md	
+++ b/lcci/03.04.Implement Queue using Stacks/README_EN.md	
@@ -330,6 +330,52 @@ impl MyQueue {
 */
 ```
 
+```swift
+class MyQueue {
+ private var stk1: [Int] = []
+ private var stk2: [Int] = []
+
+ init() {}
+
+ func push(_ x: Int) {
+ stk1.append(x)
+ }
+
+ @discardableResult
+ func pop() -> Int {
+ move()
+ return stk2.removeLast()
+ }
+
+ func peek() -> Int {
+ move()
+ return stk2.last!
+ }
+
+ func empty() -> Bool {
+ return stk1.isEmpty && stk2.isEmpty
+ }
+
+ private func move() {
+ if stk2.isEmpty {
+ while !stk1.isEmpty {
+ stk2.append(stk1.removeLast())
+ }
+ }
+ }
+}
+
+/**
+ * Your MyQueue object will be instantiated and called as such:
+ * let obj = new MyQueue();
+ * obj.push(x);
+ * let param_2 = obj.pop();
+ * let param_3 = obj.peek();
+ * var myValue : Bool
+ * myValue = obj.empty();
+ */
+```
+
 
 
 
diff --git a/lcci/03.04.Implement Queue using Stacks/Solution.swift b/lcci/03.04.Implement Queue using Stacks/Solution.swift
new file mode 100644
index 0000000000000..e2aafc5b74060
--- /dev/null
+++ b/lcci/03.04.Implement Queue using Stacks/Solution.swift	
@@ -0,0 +1,43 @@
+class MyQueue {
+ private var stk1: [Int] = []
+ private var stk2: [Int] = []
+
+ init() {}
+
+ func push(_ x: Int) {
+ stk1.append(x)
+ }
+
+ @discardableResult
+ func pop() -> Int {
+ move()
+ return stk2.removeLast()
+ }
+
+ func peek() -> Int {
+ move()
+ return stk2.last!
+ }
+
+ func empty() -> Bool {
+ return stk1.isEmpty && stk2.isEmpty
+ }
+
+ private func move() {
+ if stk2.isEmpty {
+ while !stk1.isEmpty {
+ stk2.append(stk1.removeLast())
+ }
+ }
+ }
+}
+
+/**
+ * Your MyQueue object will be instantiated and called as such:
+ * let obj = new MyQueue();
+ * obj.push(x);
+ * let param_2 = obj.pop();
+ * let param_3 = obj.peek();
+ * var myValue : Bool 
+ * myValue = obj.empty();
+ */
\ No newline at end of file
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