Delete '4'

4

@@ -1,96 +0,0 @@
-#include <stdio.h>
-#include <stdbool.h>
-#include <string.h>
-#include <stdlib.h>
-struct Student {
-    char student_id[6];
-    int class_number;
-    float score1, score2, score3;
-};
-
-// 比较两个学生的函数，用于排序
-int compare_students(const void *a, const void *b) {
-    struct Student *student1 = (struct Student *)a;
-    struct Student *student2 = (struct Student *)b;
-
-    // 先按班级升序排序
-    if (student1->class_number < student2->class_number) {
-        return -1;
-    } else if (student1->class_number > student2->class_number) {
-        return 1;
-    } else {
-        // 如果班级相同，再按总成绩降序排序
-        float total1 = student1->score1 + student1->score2 + student1->score3;
-        float total2 = student2->score1 + student2->score2 + student2->score3;
-        
-        if (total1 < total2) {
-            return 1;
-        } else if (total1 > total2) {
-            return -1;
-        } else {
-            return 0;
-        }
-    }
-}
-
-int main() {
-    struct Student students[4];
-    int i;
-
-    // 初始化已有的三个学生信息
-    strcpy(students[0].student_id, "10001");
-    students[0].class_number = 11;
-    students[0].score1 = 99.5;
-    students[0].score2 = 88.5;
-    students[0].score3 = 89.5;
-
-    strcpy(students[1].student_id, "10002");
-    students[1].class_number = 12;
-    students[1].score1 = 77.9;
-    students[1].score2 = 56.5;
-    students[1].score3 = 87.5;
-
-    strcpy(students[2].student_id, "10003");
-    students[2].class_number = 11;
-    students[2].score1 = 92.5;
-    students[2].score2 = 99.0;
-    students[2].score3 = 60.5;
-
-    int num_students = 3; // 已有学生数量
-
-    // 输入新学生的信息
-    struct Student new_student;
-    printf("请输入新学生的信息 (学号 班级 成绩1 成绩2 成绩3): ");
-    scanf("%s %d %f %f %f", new_student.student_id, &new_student.class_number, &new_student.score1, &new_student.score2, &new_student.score3);
-
-    // 检查学号是否已存在
-    bool student_exists = false;
-    for (i = 0; i < num_students; i++) {
-        if (strcmp(new_student.student_id, students[i].student_id) == 0) {
-            student_exists = true;
-            break;
-        }
-    }
-
-    if (student_exists) {
-        printf("已存在学号的信息\n");
-    } else {
-        // 插入新学生信息并排序
-        students[num_students] = new_student;
-        num_students++;
-
-        qsort(students, num_students, sizeof(struct Student), compare_students);
-
-        // 输出所有学生信息
-        for (i = 0; i < num_students; i++) {
-            printf("%s %d %.1f %.1f %.1f", students[i].student_id, students[i].class_number, students[i].score1, students[i].score2, students[i].score3);
-            if (i == num_students - 1) {
-                printf(" inserted\n");
-            } else {
-                printf("\n");
-            }
-        }
-    }
-
-    return 0;
-}