Question

(c++)编写一个递归函数Power(int x, int y)，计算x的y次幂，并在主函数中实现输入输出

Answer 1

#include<iostream>
using namespace std;
double power(int x,int y)
{
if(y==0)return 1;
else return x*power(x,y-1);
}
int main()
{
int a,b;
cin>>a;
cin>>b;
cout<<power(a,b);
}

Answer 2

double power(int x,int y){
if(y=0)return 1;
else return power(x,y-1)*x;
}

Answer 3

Power 换成fac也行