用数组表示一个学生5门课成绩

#include<stdio.h>
main()
{
int i;
float a[5],aver,sum; /*定义成绩数组，平均值和总成绩*/
aver=0.0;
sum=0.0; /*赋初值*/
printf("Please input the score(5 scores):\n");
for(i=0;i<5;i++) /*输入成绩*/
scanf("%f",&a[i]);
printf("The scores are:\n");
for(i=0;i<5;i++)
printf("%6.2f ",a[i]);
printf("\n");
for(i=0;i<5;i++) /*计算总数*/
sum+=a[i];
aver=sum/5; /*计算平均值*/
printf("The sum of the scores is %6.2f\n",sum);
printf("The aver of the scores is %6.2f\n",aver);
}

main()
{int a[5],i,m=0;
for(i=0;i++;i<5);
{scanf(%d,&a[i]);
m=m+a[i];}
printf("%d\n",m);
printf("%.2f\n",m/5);
}
具体语法忘记了,两年没碰过了!

#include<stdio.h>
main()
{float a[5],n,m;
for(n=0;n<=4;n++)
scanf("%f",&a[n]);
for(n=0;n<=4;n++)