adding the simplify path example

lectures/14_stacks_queues/queue.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+#include <queue>
+
+int main() {
+	std::queue<int> myQueue;
+
+	myQueue.push(10);
+	myQueue.push(20);
+	myQueue.push(30);
+	myQueue.push(40);
+	myQueue.push(50);
+
+	std::cout << "Size of queue: " << myQueue.size() << std::endl;
+	std::cout << "Front element: " << myQueue.front() << std::endl;
+
+	if (!myQueue.empty()) {
+		std::cout << "Queue is not empty" << std::endl;
+	} else {
+		std::cout << "Queue is empty" << std::endl;
+	}
+
+	myQueue.pop();
+	std::cout << "Front element after pop: " << myQueue.front() << std::endl;
+
+	return 0;
+}