#include <iostream> #include <queue> using namespace std; int main() { // Create a queue of strings queue<string> cars; // Add elements to the queue cars.push("Volvo"); cars.push("BMW"); cars.push("Ford"); cars.push("Mazda"); // Change the value of the front element cars.front() = "Tesla"; // Change the value of the back element cars.back() = "VW"; // Access the front element cout << cars.front() << "\n"; // Access the back element cout << cars.back() << "\n"; return 0; }