#include <stdio.h>
#include <stdbool.h>
#include <string.h>

struct Student {
    int student_id;
    float math_score;
    float physics_score;
    float english_score;
    float total_score;
    float average_score;
};

void print_menu() {
    printf("                              1.Input\n");
    printf("                              2.Output\n");
    printf("                              3.Order\n");
    printf("                              4.Quit\n");
}

int main() {
    struct Student students[3];
    int choice;
    int i;

    while (1) {
        print_menu();
        printf("Please enter your choice: ");
        scanf("%d", &choice);

        if (choice == 1) {
            printf("Please input info of the three students:\n");
            for (i = 0; i < 3; i++) {
                printf("Student %d information:\n", i + 1);
                printf("Student ID (5-digit natural number): ");
                scanf("%d", &students[i].student_id);
                printf("Math Score (2-digit integer, 1 decimal place): ");
                scanf("%f", &students[i].math_score);
                printf("Physics Score (2-digit integer, 1 decimal place): ");
                scanf("%f", &students[i].physics_score);
                printf("English Score (2-digit integer, 1 decimal place): ");
                scanf("%f", &students[i].english_score);

                // Calculate total and average score
                students[i].total_score = students[i].math_score + students[i].physics_score + students[i].english_score;
                students[i].average_score = students[i].total_score / 3.0;

                // Print student info
                printf("%d,%.1f,%.1f,%.1f\n", students[i].student_id, students[i].total_score, students[i].average_score);
            }
        } else if (choice == 2) {
            for (i = 0; i < 3; i++) {
                printf("%d,%.1f,%.1f,%.1f\n", students[i].student_id, students[i].total_score, students[i].average_score);
            }
        } else if (choice == 3) {
            // Sort students based on total score (ascending order)
            for (i = 0; i < 3; i++) {
                for (int j = i + 1; j < 3; j++) {
                    if (students[i].total_score > students[j].total_score) {
                        struct Student temp = students[i];
                        students[i] = students[j];
                        students[j] = temp;
                    }
                }
            }

            // Print sorted student info
            for (i = 0; i < 3; i++) {
                printf("%d,%.1f,%.1f\n", students[i].student_id, students[i].total_score, students[i].average_score);
            }
        } else if (choice == 4) {
            printf("You are about to Quit\n");
            break;
        } else {
            printf("Wrong input\n");
        }
    }

    return 0;
}