#include "p8.h"

#define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>

void prompt_student_info(Student* out_student) {
	printf("Enter student ID: ");
	scanf("%d", &out_student->id);

	printf("Enter student first name: ");
	// Our array can only hold 16 characters including the null terminator,
	// so we can only read 15 non-null characters. Consider what happens
	// to any remaining characters if the user enters a string longer than
	// 15 characters.
	scanf("%15s", out_student->first_name);

	printf("Enter student last name: ");
	// Same as first name
	scanf("%15s", out_student->last_name);

	printf("Enter student GPA: ");
	scanf("%lf", &out_student->gpa);
}

void print_student(Student* student) {
	printf("%8d%16s%16s%8.2lf\n", student->id, student->first_name,
	       student->last_name, student->gpa);
}

double compute_average_gpa(Student* students, int num_students) {
	double gpa_sum = 0.0;

	for (int i = 0; i < num_students; ++i) {
		gpa_sum += students[i].gpa;
	}

	return gpa_sum / num_students;
}