Question

根据数组int a[4][4]={{1,2,3,4},{5,6,7,8},{9,10,11,12}{13,14,15,16}}，输出每行的平均值

Answer 1

#include <stdio.h>
int main(void)
{
int a[4][4]={{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}};
int i, j;
int sum;
for (i = 0; i < 4; i++)
{
sum = 0;
for (j = 0; j < 4; j++)
{
sum += a[i][j];
}
printf("第%d行平均值: %f\n", i+1, sum / 4.0);
}
system("pause");
return (0);
}
运行结果如下：

您的程序。。
{int a[4][4]={{1,2,3,4},{5,6,7,8},{9,10,11,12} , {13,14,15,16}};//这里少了一个逗号，在12的括号后面。。
float sum;aver; // 这里是用逗号隔开的。。float sum, aver;

Answer 2

#include "stdio.h"void main()
{
int a[4][4]={{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}};
int i,j;
double s;
for (i=0;i<4;i++)
{
s=0;
for(j=0;j<4;j++)
s+=a[i][j];
s/=4;
printf("avg=%lf\n",s);
}}

Answer 3

没说用什么语言啊