Question

一个C++程序，我不会请大家帮忙

编写递归函数GetPower（intx,int y)计算x的y次幂，在主程序中实现输入输出

Answer 1

int GetPower(int x,int y)
{
int r = 1;
if(y>0)
{
r*=x;
GetPower(x,--y);
}
else return r;
}

main()
{
int a,b;
cin<<a,b;
cout<<GetPower(a,b);
}

Answer 2

#include <stdio.h>

int GetPower(int x, int y)
{
int z = 0;

if (y == 0)
{
return 1;
}
else if (y == 1)
{
return x;
}
else
{
z = x * GetPower(x, --y);
}

return z;
}

void main()
{
int sum;
sum = GetPower(3, 3);

printf("%d\n", sum);
}