虚基类练习:动物

虚基类练习:动物

时间: 1ms        内存:128M

描述:

长期的物种进化使两栖动物既能活跃在陆地上,又能游动于水中。利用虚基类建立一个类的多重继承,包括动物(animal,属性有体长,体重和性别),陆生动物(ter_animal,属性增加了奔跑速度),水生动物(aqu_animal,属性增加了游泳速度)和两栖动物(amp_animal)。其中两栖动物保留了陆生动物和水生动物的属性。

输入:

两栖动物的体长,体重,性别,游泳速度,奔跑速度(running_speed)

输出:

初始化的两栖动物的体长,体重,性别,游泳速度,奔跑速度(running_speed)和输入的两栖动物的体长,体重,性别,游泳速度,奔跑速度(running_speed)

示例输入:

52
22
f
102
122

示例输出:

height:50
weight:20
sex:m
swimming_speed:100
running_speed:120

height:52
weight:22
sex:f
swimming_speed:102
running_speed:122

提示:

参考答案(内存最优[1092]):

#include <stdio.h>
int  main()
{
    int h,w,s,r;
    char se;
    scanf("%d%d%*c%c%d%d",&h,&w,&se,&s,&r);
    printf("height:50\nweight:20\nsex:m\nswimming_speed:100\nrunning_speed:120\n\n");
    printf("height:%d\nweight:%d\nsex:%c\nswimming_speed:%d\nrunning_speed:%d\n",h,w,se,s,r);
    return 0;
}

参考答案(时间最优[0]):


#include <iostream>

using namespace std;

class animal

{

protected:

    int hight;  

    int weight;  

    char sex;   

public:

    animal(){}

    animal(int h,int w,char s):

        hight(h),weight(w),sex(s){}

};

class aqu_animal:virtual public animal  

{

protected:

    int swimming_speed;  

public:

    aqu_animal(){}

    aqu_animal(int h,int w,char s,int s_p):

        animal(h,w,s),swimming_speed(s_p){}

};class ter_animal:virtual public animal  //陆生动物
{
protected:
    int running_speed;
public:
    ter_animal(){}
    ter_animal(int h,int w,char s,int r_p):
        animal(h,w,s),running_speed(r_p){}
};

class amp_animal:public aqu_animal,public ter_animal//两栖动物
{
public:
    amp_animal(){}
    amp_animal(int h,int w,char s,int s_p,int r_p):
        animal(h,w,s),aqu_animal(h,w,s,s_p),ter_animal(h,w,s,r_p){}
    void input();
    void show();
};
void amp_animal::input()
{
    cin>>hight>>weight>>sex>>swimming_speed>>running_speed;
}
void amp_animal::show()
{
    cout<<"hight:"<<hight<<endl;
    cout<<"weight:"<<weight<<endl;
    cout<<"sex:"<<sex<<endl;
    cout<<"swimming_speed:"<<swimming_speed<<endl;
    cout<<"running_speed:"<<running_speed<<endl;
}
int main()

{

    amp_animal a1(50,20,'m',100,120);

    amp_animal a2;

    a2.input();

    a1.show();

    cout<<endl;

    a2.show();

    return 0;

}

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