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#include <stdio.h>
#include <stdlib.h>
struct Student {
int student_id;
float math_score;
float physics_score;
float english_score;
float total_score;
float average_score;
} Student;
void swap(struct Student *a, struct Student *b) {
struct Student temp;
temp = *a;
*a = *b;
*b = temp;
}
void sortStudentsByTotalScore(struct Student students[], int num)
{
int i,j;
for (i = 0; i < num- 1; i++) {
for (j = 0; j < num - i - 1; j++) {
if (students[j].total_score > students[j + 1].total_score) {
swap(&students[j], &students[j + 1]);
}
}
}
}
void display_menu() {
printf("%30s 1. Input\n", "");
printf("%30s 2. Output\n", "");
printf("%30s 3. Order\n", "");
printf("%30s 4. Quit\n", "");
}
void input_students(struct Student *students) {
printf("Please input info of the three students:\n");
int i;
for (i = 0; i < 3; i++) {
scanf("%d", &students[i].student_id);
scanf("%f", &students[i].math_score);
scanf("%f", &students[i].physics_score);
scanf("%f", &students[i].english_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;
}
sortStudentsByTotalScore(students, 3);
for (i = 0; i < 3; i++) {
printf("%d,%.1f,%.1f\n", students[i].student_id, students[i].total_score, students[i].average_score);
}
}
int main() {
struct Student students[3];
char user_input[2];
while (1) {
display_menu();
scanf("%1s", user_input);
switch (user_input[0]) {
case 'i':
input_students(students);
break;
case 'o':
printf("%30s You are trying to Output info\n"," ");
break;
case 'm':
printf("%30s You are trying to Make things ordered\n", "");
break;
case 'q':
printf("%30s You are about to Quit\n", "");
default:
printf("%30s Wrong input\n", "");
break;
}
}
return 0;
}