有问题继续问我
#include
#include
int main()
{
int n;
double s = 0;
double q;
int i;
printf("请输入n的值:");
scanf("%d",&n);
printf("请输入q的值:");
scanf("%lf",&q);
for(i = 0; i <= n; i++)
{
s = s + pow(q, i);
}
printf("s = %.lf\n", s);
return 0;
}