采用指针法，输出二维数组各行的最大值和平均值 - 编程论坛

#2

fulltimelink2020-05-02 14:30

i计数了，但是指针没++

#3

吕孟伟2020-05-02 17:37

程序代码：

#include <stdio.h>
double fun1(double *p1);
double fun2(double *p2);
int main()
{
    double ss[3][5]={{1,2,3,4,5},{6,7,8,9,10},{11,12,13,14,15}};
    double (*p)[5];
    p=ss;
    printf("第一组数平均值=%.1f\n", fun1(*(p)));
    printf("第二组数平均值=%.1f\n", fun1(*(p+1)));
    printf("第三组数平均值=%.1f\n", fun1(*(p+2)));
    printf("第一组数最大值=%.1f\n", fun2(*(p)));
    printf("第二组数最大值=%.1f\n", fun2(*(p+1)));
    printf("第三组数最大值=%.1f\n", fun2(*(p+2)));
    int m = 100 / 20;
    printf("%d\n     ",m);
    return 0;
}
double fun1(double *p1)
{
    double s = 0, k = 0;
    for (int i = 0; i < 5; i++)
    {
        s += *p1++;
    }
    k = s / 5;
    return k;
}
double fun2(double *p2)
{
    int i=0, is=0;
    double m = 0;
        for (int i = 0; i < 5; i++)
        {
            if (m < *p2)
            {
                m = *p2;
            }
           ++p2;
        }
    return m;
}

#4

纯蓝之刃2020-05-02 18:19

程序代码：

#include <stdio.h>
double fun1(double *p1);
double fun2(double *p2);
int main()
{
    double ss[3][5]= {{1,2,3,4,5},{6,7,8,9,10},{11,12,13,14,15}};
    double (*p)[5];
    p=ss;
    printf("第一组数平均值=%.1f\n", fun1(*p));
    printf("第二组数平均值=%.1f\n", fun1(*(p+1)));
    printf("第三组数平均值=%.1f\n", fun1(*(p+2)));
    printf("第一组数最大值=%.1f\n", fun2(*p));
    printf("第二组数最大值=%.1f\n", fun2(*(p+1)));
    printf("第三组数最大值=%.1f\n", fun2(*(p+2)));
    int m = 100 / 20;
    printf("%d\n     ",m);
    return 0;
}
double fun1(double *p1)
{
    double s = 0;
    for (int i = 0; i < 5; i++)
    {
        s += *(p1+i);
    }
    return (s/5);
}
double fun2(double *p2)
{
    double m = *p2;
    for (int i = 0; i < 5; i++)
    {
        if (m < *(p2+i))
        {
            m = *(p2+i);
        }
    }
    return m;
}

#5

fengyinxqy2020-05-04 14:13

回复 2楼 fulltimelink

谢谢大佬！