#includeusing namespace std; deque myDeque;
myDeque.push_back(5); myDeque.push_back(10); myDeque.push_back(15);
myDeque.push_front(2); myDeque.push_front(4); myDeque.push_front(6);
cout << myDeque[0] << endl; // prints 6 cout << myDeque.at(2) << endl; // prints 10
myDeque.pop_back();
myDeque.pop_front();
if (myDeque.empty()) cout << "Deque is empty" << endl;The Deque data structure and functions are included in the C++ standard library (`#include