输出100—999中所有的水仙花数，若3位数xyz满足

, 则xyz为水仙花数，例如

, 因此153是水仙花数。

#include <iostream>

using namespace std;

// 方法一

void daffodil_1()

{

    int a = 0;

    for (int x=1; x<10; x++)

    {

        for (int y =0; y<10; y++)

        {

            for (int z = 0; z<10; z++)

            {

                a = 100*x+10*y+z;

                if (a== x*x*x + y*y*y + z*z*z)

                {

                    cout<<a<<" 是水仙花数"<<endl;

                }

            }

        }

    }

}

// 方法二

void daffodil_2()

{

    int x = 0;

    int y = 0;

    int z = 0;

    for (int n=100; n<1000; n++)

    {

        x = n / 100;

        y = (n % 100)/10 ;

        z = n % 10;

        if(n == x*x*x + y*y*y +z*z*z)

        {

            cout<<n<<" 是水仙花数"<<endl;

        }

    }

}

int main()

{

    cout<<"----------daffodil_1()---------"<<endl;

    daffodil_1();

    cout<<endl;

    cout<<"----------daffodil_2()---------"<<endl;

    daffodil_2();

    return 0;

}