有高手在么。帮忙看下这个程序哪里错了，求任意个整数的平均值。

#include <stdio.h>
#include <ctype.h>
int main()
{
char answer='N';
int count=0;
double value=0.0;
double total=0.0;
printf("\nThis program calculates the average of any number of values.");
for(;;)
{
printf("\nEnter a value:");
scanf("%lf",&value);
total+=value;
count++;
printf("\nDo you want to enter another value?(Y or N):");
scanf("%c",&answer);
if(tolower(answer)=='n')
break;
}
printf("\nThe average is %.2lf\n",total/count);
return 0;
}
编译正确，但运行结果错误，