王中第

[miantt]

Student students = (Student)malloc(n * sizeof(Student));

input_students(students, n); sort_students(students, n);

printf("\n学号\t成绩\n"); for (int i = 0; i < n; i++) { printf("%d\t%.2f\n", students[i].id, students[i].score); }

float avg_score = calculate_avg_score(students, n); int failed_count = count_failed_students(students, n);

printf("\n平均成绩: %.2f\n", avg_score); printf("不及格人数: %d\n", failed_count); free(students); return 0;