C语言程序：学生成绩统计与排序（附源代码和截图）

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

#define MAX_STUDENT_NUM 100
#define MAX_NAME_LEN 20
#define MAX_COURSE_NUM 10

typedef struct {
    char id[10];
    char name[MAX_NAME_LEN];
    int score[MAX_COURSE_NUM];
    float avg_score;
} Student;

int main() {
    int n, m;
    printf("请输入学生人数和课程数：");
    scanf("%d %d", &n, &m);

    Student students[MAX_STUDENT_NUM];
    for (int i = 0; i < n; i++) {
        printf("请输入第%d个学生的学号、姓名、各科成绩：\n", i + 1);
        scanf("%s %s", students[i].id, students[i].name);
        for (int j = 0; j < m; j++) {
            scanf("%d", &students[i].score[j]);
            students[i].avg_score += students[i].score[j];
        }
        students[i].avg_score /= m;
    }

    for (int i = 0; i < n - 1; i++) {
        for (int j = 0; j < n - i - 1; j++) {
            if (students[j].avg_score < students[j + 1].avg_score) {
                Student tmp = students[j];
                students[j] = students[j + 1];
                students[j + 1] = tmp;
            }
        }
    }

    printf("\n按照平均分排序输出学生信息：\n");
    printf("学号\t姓名\t");
    for (int i = 0; i < m; i++) {
        printf("成绩%d\t", i + 1);
    }
    printf("平均分\n");

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

    return 0;
}

截图如下：