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

struct Student {
    int student_id;
    int class_id;
    char name[50];
    float math_score;
    float physics_score;
    float english_score;
    float total_score;
};

struct Student students[3] = {
    {10001, 11, "Zhang", 99.5, 88.5, 89.5},
    {10002, 12, "Yang", 77.9, 56.5, 87.5},
    {10003, 11, "Liang", 92.5, 99.0, 60.5}
};

void updateStudent(int id, int new_id, int class_id, char new_name[], float score1, float score2, float score3) {
    int index = -1;

    for (int i = 0; i < 3; i++) {
        if (students[i].student_id == id) {
            index = i;
            break;
        }
    }

    if (index != -1) {
        students[index].student_id = new_id;
        students[index].class_id = class_id;
        strcpy(students[index].name, new_name);
        students[index].math_score = score1;
        students[index].physics_score = score2;
        students[index].english_score = score3;
        students[index].total_score = score1 + score2 + score3;

        for (int i = 0; i < 3; i++) {
            for (int j = i + 1; j < 3; j++) {
                if (students[i].class_id > students[j].class_id || 
                   (students[i].class_id == students[j].class_id && students[i].total_score < students[j].total_score)) {
                    struct Student temp = students[i];
                    students[i] = students[j];
                    students[j] = temp;
                }
            }
        }

        for (int i = 0; i < 3; i++) {
            if (i == 0 || students[i].class_id != students[i - 1].class_id) {
                printf("%d %d %s %.1f %.1f %.1f\n", students[i].class_id, students[i].student_id, students[i].name, students[i].math_score, students[i].physics_score, students[i].english_score);
            } else {
                printf("   %d %s %.1f %.1f %.1f\n", students[i].student_id, students[i].name, students[i].math_score, students[i].physics_score, students[i].english_score);
            }
        }

        printf(" modified\n");
    } else {
        printf("Student not found, no modifications made.\n");
    }
}

void sortStudents() {
    for (int i = 0; i < 3; i++) {
        for (int j = i + 1; j < 3; j++) {
            if (students[i].class_id > students[j].class_id || 
               (students[i].class_id == students[j].class_id && students[i].total_score < students[j].total_score)) {
                struct Student temp = students[i];
                students[i] = students[j];
                students[j] = temp;
            }
        }
    }

    for (int i = 0; i < 3; i++) {
        if (i == 0 || students[i].class_id != students[i - 1].class_id) {
            printf("%d %d %s %.1f %.1f %.1f\n", students[i].class_id, students[i].student_id, students[i].name, students[i].math_score, students[i].physics_score, students[i].english_score);
        } else {
            printf("   %d %s %.1f %.1f %.1f\n", students[i].student_id, students[i].name, students[i].math_score, students[i].physics_score, students[i].english_score);
        }
    }
}

int main() {
    printf("Initial Student Information:\n");
    sortStudents();

    updateStudent(10002, 10005, 13, "Li", 80.0, 70.5, 90.0);

    printf("\nUpdated Student Information:\n");
    sortStudents();

    return 0;
}