Implement Sliding Window Program

#include < iostream >
using namespace std;
int main() {
    char sender[50], receiver[50];
    int i, winsize;

    cout << "\nEnter the window size::";
    cin >> winsize;
    cout << "\nSender Window is Expanded to Store Message or Window::\n";
    cout << "\nEnter the data to be Send::";
    cin >> sender;

    for (i = 0; i < winsize; i++)
        receiver[i] = sender[i];
    receiver[i] = NULL;

    cout << "\nMessage Send by the Sender::";
    cout << sender;
    cout << "\nWindow Size of Receiver is Expanded::";
    cout << "\nAcknowledgement from Receiver::";

    for (i = 0; i < winsize; i++)
        cout << "\nAck" << i;

    cout << "\nMessage Received by Receiver is::";
    cout << receiver;
    cout << "\nWindow size of Receiver is Shrinked\n";

    return 0;
}



Output::

Enter the window size::2

Sender Window is Expanded to Store Message or Window::

Enter the data to be Send::45

Message Send by the Sender::45
Window Size of Receiver is Expanded::
Acknowledgement from Receiver::
Ack0
Ack1
Message Received by Receiver is::45
Window size of Receiver is Shrinked