サンプル53

#include
float GetAve(int *);
main ()
{
int mark[]={87,76,45,73,66,-1};

int i;
float ave;
ave=GetAve(mark);
printf("配列：");
for(i=0;mark[i]>=0;i++){
printf("%d,",mark[i]);
}
printf("\nのへ基金地は%5.2f点です。\n",ave);
}
float GetAve (int *pva1)
{
int count=0;
float average;
for(average=0.0;*pva1>=0;pva1++){
average+=*pva1;
count++;
}
average/=count;
return average;
}

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