求一组成绩的平均分数以及高于平均分的成绩，设给定的成绩为90，85，92，77，80，62

main()
{
int a[]={95,85,92,77,80,62},x,y=0;
printf("the scores are:\n");
for(x=0;x<6;x++)
printf("%d,",a[x]);
printf("\n");
for(x=0;x<6;x++)y=y+a[x];
printf("the agerage scores:%d\n",y/6);
printf(">%d:\n",y/6);
for(x=0;x<6;x++)
if(a[x]>y/6)printf("%d,",a[x]);
}

#include <stdio.h>

//定义学生个数
#define MAX_LEN 10

void main()
{
double a[MAX_LEN], n=0, dTotalScore = 0, dAvgScore=0;
int i, iFailCount = 0;
char ch;
printf( "请输入%d个学生的成绩:\n", MAX_LEN );
for ( i=0; i < MAX_LEN; i++ )
{
scanf( "%lf", &a[i]);
dTotalScore+=a[i];
}

dAvgScore = dTotalScore / MAX_LEN;

for ( i=0; i < MAX_LEN; i++ )
{
if ( a[i] < dAvgScore )
{
++iFailCount;
}
}