下面的程序先输入10位同学的成绩,求平均分,再求低于平均分的人数,最后输出
#include<stdio.h>
#include<stdlib.h>
int main()
{
int grade[10];
int i;
double ave;
int sum;
int sign;
for(i=0;i<10;i++)
{
printf("please input %d grade:\n",i+1);
scanf("%d",&grade[i]);
}
printf("the grades are:\n");
for(i=0;i<10;i++)
{
printf("%d ",grade[i]);
}
sum=0;
for(i=0;i<10;i++)
{
sum=sum+grade[i];
}
ave=sum/(1.0*10);
printf("\nthe average grade is:%f\n",ave);
printf("the numbers of students below the average grade:\n");
//printf("the number is:%d\n",(int)ave);
sign=0;
for(i=0;i<10;i++)
{
if(grade[i]<(int)ave+1)
{
sign++;
}
}
printf("%d\n",sign);
return 0;
}
运行结果如下,如果有什么不明白的还可以问我
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/a1ec08fa513d2697a0df091550fbb2fb4316d86e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)