C语言实验——计算表达式 (sdut oj)

C语言实验——计算表达式

Problem Description

Input

Output

Example Input

3 2

Example Output

2.00

Hint

Author

参考代码

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