#include<stdio.h>
int main(void)
{
FILE *fp;
int n=0;
char name[100];
double height, weight, hsum=0.0, wsum=0.0;
if((fp=fopen("idata.txt","r"))==NULL)
printf("FILE OPEN ERROR \n");
else
{
while(fscanf(fp, "%s%lf%lf",name, &height, &weight)!=EOF)
{
printf("%-8s \t %5.1f %5.1f \n", name, height, weight);
n++;
hsum+=height;
wsum+=weight;
}
fclose(fp);
printf("average \t %5.1f %5.1f \n",hsum/n, wsum/n);
}
return 0;
}