10 exciting C++ projects with source code

				#include <iostream>
#include <vector>
#include <string>
#include <algorithm>

class Student {
public:
    Student(const std::string& name, int rollNumber)
        : name(name), rollNumber(rollNumber), allocatedRoomNumber(-1) {}

    const std::string& getName() const {
        return name;
    }

    int getRollNumber() const {
        return rollNumber;
    }

    int getAllocatedRoomNumber() const {
        return allocatedRoomNumber;
    }

    void allocateRoom(int roomNumber) {
        allocatedRoomNumber = roomNumber;
    }

private:
    std::string name;
    int rollNumber;
    int allocatedRoomNumber;
};

class Hostel {
public:
    Hostel(int totalRooms) : totalRooms(totalRooms), availableRooms(totalRooms) {
        for (int i = 1; i <= totalRooms; ++i) {
            availableRooms.push_back(i);
        }
    }

    void displayAvailableRooms() const {
        std::cout << "===== Available Rooms =====\n";
        for (int room : availableRooms) {
            std::cout << "Room " << room << "\n";
        }
    }

    bool allocateRoom(Student& student) {
        if (availableRooms.empty()) {
            std::cout << "No available rooms.\n";
            return false;
        }

        int roomNumber = availableRooms.back();
        availableRooms.pop_back();

        student.allocateRoom(roomNumber);
        allocatedStudents.push_back(student);

        std::cout << "Room allocated successfully. Student " << student.getName() << " assigned to Room " << roomNumber << "\n";

        return true;
    }

    void displayAllocatedRooms() const {
        std::cout << "===== Allocated Rooms =====\n";
        for (const auto& student : allocatedStudents) {
            std::cout << "Student " << student.getName() << " | Roll Number: " << student.getRollNumber()
                      << " | Room: " << student.getAllocatedRoomNumber() << "\n";
        }
    }

    bool deallocateRoom(int rollNumber) {
        auto it = std::find_if(allocatedStudents.begin(), allocatedStudents.end(),
                               [rollNumber](const Student& student) { return student.getRollNumber() == rollNumber; });

        if (it != allocatedStudents.end()) {
            int roomNumber = it->getAllocatedRoomNumber();
            availableRooms.push_back(roomNumber);
            allocatedStudents.erase(it);

            std::cout << "Room deallocated successfully. Student " << it->getName() << " removed from Room " << roomNumber << "\n";

            return true;
        }

        std::cout << "Student not found or not allocated a room.\n";
        return false;
    }

private:
    int totalRooms;
    std::vector<int> availableRooms;
    std::vector<Student> allocatedStudents;
};

int main() {
    // Create Hostel with 10 rooms
    Hostel hostel(10);

    // Add students
    Student student1("John Doe", 101);
    Student student2("Jane Smith", 102);

    // Allocate rooms
    hostel.allocateRoom(student1);
    hostel.allocateRoom(student2);

    // Display allocated rooms
    hostel.displayAllocatedRooms();

    // Deallocate a room
    hostel.deallocateRoom(student1.getRollNumber());

    // Display updated allocated rooms
    hostel.displayAllocatedRooms();

    return 0;
}