我想张贴整个代码，但我在网站上的格式问题。但我张贴的代码结构和InsertFlight是在一个类。我会尝试张贴完整的代码，如果需要的话

struct FlightRec {
string FlightNO;
string Destination;
TimeRec Time;
FlightType Ftype;
bool Delay;
TimeRec ExpectedTime; // if the flight is delayed
};

template <class T>

struct Node {
    T entry;
    Node<T>* next;
};

// Add a flight to the list
void InsertFlight(const T& flight) {
    // Create a new node for the flight
    Node<T>* node = new Node<T>(flight);
    // Add the node to the head of the list
    node->next = head;
    head = node;
}