问题：有n个结构体变量，内含学生学号、姓名和3门课程的成绩。要求输出平均成绩最高的学生的信息

Question

问题遇到的现象和发生背景

题目：有n个结构体变量，内含学生学号、姓名和3门课程的成绩。要求输出平均成绩最高的学生的信息
不知道错在哪

用代码块功能插入代码，请勿粘贴截图

#pragma warning(disable : 4996) 
#include<stdio.h>
#include<stdlib.h>
#define N 3

struct Student
{
    int num;
    char name[20];
    float score[3];
    double aver;
};

int main()
{
    void input(struct Student* p1);
    struct Student* max(struct Student* p2);
    printf("输入3位学生的信息:\n");
    struct Student* p;
    p = (struct Student*)malloc(sizeof(struct Student));
    if (p == NULL)
    {
        printf("application failed");
        return -1;
    }
    memset(p, 0, sizeof(struct Student*));
    input(p);
    print(max(p));
    free(p);
    p = NULL;
    return 0;
}

void input(struct Student* p1)
{
    int i;
    for (i = 0; i < N; i++,p1++)
    {
        scnaf("%d %s %f %f %f", &(p1->num), &(p1->name), &(p1->score[0]), &(p1->score[1]), &(p1->score[2]));
        p1->aver = (p1->score[0] + p1->score[1] + p1->score[2]) / 3.0;
    }
}

struct Student* max(struct Student* p2)
{
    int i;
    int m = 0;
    for (i = 0; i < N; i++)
    {
        if ((p2 + i)->aver > (p2 + m)->aver)
        {
            m = i;
        }
    }
    return (p2 + m);
}

void print(struct Student* p3)
{
    printf("平均成绩最高的学生是：\n");
    printf("学生号:%d\n学生姓名:%s\n各个课程的成绩:%5.2f%5.2f%5.2f\n平均成绩:%3.2f", p3->num, p3->name, p3->score[0], p3->score[1], p3->score[2], p3->aver);
}

运行结果及报错内容

struct Student* max(struct Student* p2)函数报错

Answer 1

max的逻辑没有错，但是名字和库里面的会冲突，建议改成Max
下面是帮你修改的代码

#include <stdio.h>
#include<stdlib.h>
#define N 3

struct Student
{
    int num;
    char name[20];
    float score[3];
    double aver;
};

int main()
{
    void input(struct Student* p1);

    struct Student* Max(struct Student* p2);//max的名字改成首字母大写了

    void print(struct Student* p3);//生命加上

    printf("输入3位学生的信息:\n");
    struct Student* p;
    p = (struct Student*)malloc(sizeof(struct Student) * 3);//3个学生
    if (p == NULL)
    {
        printf("application failed");
        return -1;
    }
    memset(p, 0, sizeof(struct Student*));
    input(p);

    print(Max(p));
    free(p);
    p = NULL;
    return 0;
}

void input(struct Student* p1)
{
    int i;
    for (i = 0; i < N; i++, p1++)
    {
        scanf("%d %s %f %f %f", &(p1->num), &(p1->name), &(p1->score[0]), &(p1->score[1]), &(p1->score[2]));
        p1->aver = (p1->score[0] + p1->score[1] + p1->score[2]) / 3.0;
    }
}

struct Student* Max(struct Student* p2)
{
    int i;
    int m = 0;
    for (i = 0; i < N; i++)
    {
        if ((p2 + i)->aver > (p2 + m)->aver)
        {
            m = i;
        }
    }
    return (p2 + m);
}

void print(struct Student* p3)
{
    printf("平均成绩最高的学生是：\n");
    printf("学生号:%d\n学生姓名:%s\n各个课程的成绩:%5.2f%5.2f%5.2f\n平均成绩:%3.2f", p3->num, p3->name, p3->score[0], p3->score[1], p3->score[2], p3->aver);
}