#include"stdio.h"
#include"conio.h"
int avg,i,j,a[50][2],sum=0,count=0;
void main()
{
for(i=0;i<50;i++)
{
printf("Enter id number on %d: ",i );
scanf("%d",&a[i][0]);
if(a[i][0]<0)
break;
else
{
printf("Enter expensive on %d: ",j);
scanf("%d",&a[i][1]);
}
sum+=a[i][1];
count++;
}
avg=sum/count;
printf("Avrege is %d :",avg);
getch();
}
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