n层嵌套平方根的计算

#include<stdio.h>
#include<math.h>
double Y(double x,int n);
int main()
{
double x;
int n;
printf(“Please input x and n:”);
scanf("%lf,%d",&x,&n);
printf(“Result=%.2f\n”,Y(x,n));
}
double Y(double x,int n)
{
if(n==0) return 0;
else return (sqrt(Y(x,n-1)+x));
}