#include <iostream>
#include <vector>
#include <fstream>
#include <string>

// 学生类
class Student {
public:
    std::string name;
    int id;
    std::string major;
    int grade;
    // 构造函数、其他方法等
};

// 宿舍类
class Dormitory {
public:
    int roomNumber;
    int capacity;
    std::string location;
    std::vector<int> studentIds; // 存储学生ID
    // 构造函数、其他方法等
};

// 宿舍管理系统类
class DormitoryManagementSystem {
private:
    std::vector<Student> students;
    std::vector<Dormitory> dormitories;

    void loadFromFiles() {
        // 从文件加载数据
    }

    void saveToFiles() {
        // 将数据保存到文件
    }

public:
    DormitoryManagementSystem() {
        loadFromFiles();
    }

    ~DormitoryManagementSystem() {
        saveToFiles();
    }

    void addStudent(const Student& student) {
        students.push_back(student);
    }

    void addDormitory(const Dormitory& dormitory) {
        dormitories.push_back(dormitory);
    }

    void assignDormitory(int studentId, int dormitoryRoomNumber) {
        // 分配学生到宿舍
    }

    // 其他管理功能...
};

int main() {
    DormitoryManagementSystem system;
    // 实现用户界面逻辑
    return 0;
}