use a c language to finish up this project. To do lists are commented in functions.

For an example, if i run program than it should be like this

#include #include #include #include

// maximum length for names (student, courses, university) #define MAX_NAME_LENGTH 20 // maximum number of courses students can be registered for #define MAX_REGISTERED_COURSES 5 // maximum number of courses at university #define MAX_COURSES 100 // maximum number of students at university #define MAX_STUDENTS 1000

// course data type, only has name typedef struct { char name[MAX_NAME_LENGTH]; } course;

// student data type, has name, registeredCourses[] and numberOfRegisteredCourses typedef struct { char name[MAX_NAME_LENGTH]; course * registeredCourses[MAX_REGISTERED_COURSES]; int numberOfRegisteredCourses; } student;

// university structure, holds name, courses and students // numberOfCourses holds how many courses we currently have // numberOfStudents holds how many students we currently have typedef struct { char name[MAX_NAME_LENGTH]; course * courses[MAX_COURSES]; int numberOfCourses; student * students[MAX_STUDENTS]; int numberOfStudents; } university;

// given a prompt and int * for choice // fills the value for choice prompting user multiple times if necessary void getNumber(char * prompt, int * choice) { printf("%s", prompt); int numberOfItemsRead = scanf("%d", choice); while (numberOfItemsRead != 1) { printf("Bad input "); printf("%s", prompt); numberOfItemsRead = scanf("%d", choice); } // choice has correct information }

// given a prompt and char * for message // fills the value for message prompting user multiple times if necessary void getString(char * prompt, char * msg) { printf("%s", prompt); int numberOfItemsRead = scanf("%s", msg); while (numberOfItemsRead != 1) { printf("Bad input "); printf("%s", prompt); numberOfItemsRead = scanf("%s", msg); } // msg has correct information }

// creates a student object, gets name from user student * makeStudent() { student * aStudent = (student *) malloc(sizeof(student)); aStudent->numberOfRegisteredCourses = 0; getString("Enter the name for student: ", aStudent->name); return aStudent; }

// free the student data that was allocated using malloc int deleteStudent(student * aStudent) { if (! aStudent) return -1; free(aStudent); return 0; }

// creates a course object, gets name from user // similar to makeStudent course * makeCourse() { // TODO - also change return value return NULL; }

// free the course data that was allocated using malloc // similar to deleteStudent int deleteCourse(course * aCourse) { printf("Not implemented yet: %s ", aCourse->name); // TODO return 0; } // creates a university object, gets name from user // sets numberOfCourses and numberOfStudents to 0 // similar to makeStudent university * makeUniversity() { // TODO - also change return value return NULL; }

// free the university data that was allocated using malloc // need to free each course in the courses array // need to free each student in student array int deleteUniversity(university * aUni) { if (! aUni) return -1; for (int i = 0; i numberOfStudents; i++) deleteStudent(aUni->students[i]); for (int i = 0; i numberOfCourses; i++) deleteCourse(aUni->courses[i]); free(aUni); return 0; }

// returns a student * from the students array in uni // returns NULL if a student with the given name is not found student * getStudent(university * uni) { // get student object char studentName[MAX_NAME_LENGTH]; getString("Enter the name for student: ", studentName); for (int i = 0; i numberOfStudents; i++) { if (strcmp(studentName,uni->students[i]->name) == 0) return uni->students[i];

} return NULL; }

// returns a course * from the courses array in uni // returns NULL if a course with the given name is not found course * getCourse(university * uni) { printf("Not implemented yet: %s ", uni->name); // TODO return NULL; } // enroll student at university // creates a new student and adds it to the students array for university void enrollStudent(university * uni) { student * aStudent = makeStudent(); uni->students[uni->numberOfStudents] = aStudent; uni->numberOfStudents++; }

// add a course at university // creates a new course and adds it to the courses array for university // similar to enrollStudent void addCourse(university * uni) { printf("Not implemented yet: %s ", uni->name); // TODO }

// Display basic information about the university void universityInformation(university * uni) { printf("%s has %d courses and %d students ", uni->name, uni->numberOfCourses, uni->numberOfStudents); }

// list all students at the university void listAllStudents(university * uni) { printf("Students are: "); for (int i = 0; i numberOfStudents; i++) { student * aStudent = uni->students[i]; printf("%s ", aStudent->name); }

printf(" "); }

// list all courses at the university // similar to listAllStudents void listAllCourses(university * uni) { printf("Not implemented yet: %s ", uni->name); // TODO }

// get student struct // get course strruct // if both student and course structs are found // add the course to the registeredCourses for the student void registerStudentForCourse(university * uni) { printf("Not implemented yet: %s ", uni->name);

//printf("Registered %s for %s course ", aStudent->name, aCourse->name); }

// helper function for listAllStudentsInCourse // return true if student is registered for courseName bool isStudentInCourse(student * aStudent, char * courseName) { printf("Not implemented yet: %s %s ", aStudent->name, courseName); return false; }

// list all students at the university // that are enrolled in a given course void listAllStudentsInCourse(university * uni) { printf("Not yet: %s ", uni->name); }

// main is registration system void mainMenu(university * uni) { int choice; printf("welcome to the %s menu ", uni->name); printf("1. Display information about the university "); printf("2. List all courses "); printf("3. Add a course "); printf("4. Enroll a new student "); printf("5. List all students "); printf("6. Register a student for a course "); printf("7. List all students enrolled in a course "); printf("10. Exit "); getNumber("Enter command: ", &choice); printf("Choice is %d ", choice); switch(choice) { case 1: universityInformation(uni); break; case 2: listAllCourses(uni); break; case 3: addCourse(uni); break; case 4: enrollStudent(uni); break; case 5: listAllStudents(uni); break; case 6: registerStudentForCourse(uni); break; case 7: listAllStudentsInCourse(uni); break; case 10: printf("Thank you for using the Registrar program "); deleteUniversity(uni); exit(0); default: printf("Bad input!"); } printf(" "); mainMenu(uni); }

int main() { university * uni = makeUniversity(); mainMenu(uni); return 0; }

Welcome to the UWB menu 1. Display information about the university 2. List all courses 3. Add a course 4. Enroll a new student 5. List all students 6. Register a student for a course 7. List all students enrolled in a course 10. Exit Enter command: 2 Choice is 2 Courses are: 132 142 Welcome to the UWB menu 1. Display information about the university 2. List all courses 3. Add a course 4. Enr11 a new student 5. List all students 6. Register a student for a course 7. List all students enrolled in a course 10. Exit Enter command: 4 Choice is 4 Enter the name for student: Kris Welcome to the UWB menu 1. Display information about the university 2. List all courses 3. Add a course 4. Enroll a new student 5. List all students 6. Register a student for a course 7. List all students enrolled in a course 10. Exit Enter command: 2 Choice is 2 Courses are: 132 142 Welcome to the UWB menu 1. Display information about the university 2. List all courses 3. Add a course 4. Enr11 a new student 5. List all students 6. Register a student for a course 7. List all students enrolled in a course 10. Exit Enter command: 4 Choice is 4 Enter the name for student: Kris