#运算结果只有a14和a24不对
#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define N 3
#define M 5
void randshuzu(double a[][M],int n)
{
int i,j;
srand(time(NULL));
for(i=0;i<n;i++)
for(j=0;j<M-1;j++)
{
a[i][j]=rand()%100+1;
}
}
void printfshuzu(double a[][M],int n)
{
int i,j;
double sum=0;
//for(i=0;i<n;i++)
i=0;
while(i<n)
{
printf("\n");
printf(" ");
for(j=0;j<M-1;j++)
{
printf("%7.1lf",a[i][j]);
sum=a[i][j]+sum;
}
a[i][4]=sum/4.0;
printf("%7.1lf",a[i][4]);
i++;
}
}
void maxshuzu(double a[][M],int n)
{
int i,j;
double max;
printf("\n");
printf("最高 ");
for(j=0;j<M;j++)
{
i=0;
max=a[i][j];
for(i=0;i<n;i++)
{
if(a[i][j]>=max){
max=a[i][j];}
}
printf("%7.1lf",max);
}
}
void minshuzu(double a[][M],int n)
{
int i,j;
double min;
printf("\n");
printf("最低 ");
for(j=0;j<M;j++)
{
i=0;
min=a[i][j];
for(i=0;i<n;i++)
{
if(a[i][j]<=min){
min=a[i][j];}
}
printf("%7.1lf",min);
}
}
int main()
{
double s1[N][M];
printf(" 课程01 课程02 课程03 课程04 平均分");
randshuzu(s1,N);
printfshuzu(s1,N);
maxshuzu(s1,N);
minshuzu(s1,N);
return 0;
}