YTU 2918: Shape系列-4

YTU 2918: Shape系列-4

2918: Shape系列-4

时间限制: 1 Sec   内存限制: 128 MB

提交: 276

解决: 232

题目描述

小聪送给小亮和小华的形状他们都很喜欢,小亮和小华非要比一下他们两个的形状，来看看小聪更爱谁

，请完成RsubC类。RsubC类中包括Rectangle类和Circle类的数据成员，新增布尔类型的数据成员sign（sign等于0时，新面积等于Rectangle+Circle，sign等于1时，新面积等于Rectangle-Circle），新定义了求面积的成员函数area()。但是小聪没有为RsubC类写构造函数和成员函数，请帮助小聪完成RsubC类。

小强写的文件头和Shape类

#include #define PI 3.14 using namespace std;class Shape { public: Shape(); Shape(int c); int getcolor(); double area(); protected: int color; }; Shape::Shape() { color=0; } Shape::Shape(int c) { color=c; } int Shape::getcolor() { return color; } double Shape::area() { return 10000; }小聪写的Rectangle类 class Rectangle:public Shape { public: Rectangle(int c,double w,double h); double getwidth(); double getheight(); double area(); double price(); protected: double height; double width; }; Rectangle::Rectangle(int c,double w,double h):Shape(c) { width=w; height=h; } double Rectangle::getwidth() { return width; } double Rectangle::getheight() { return height; } double Rectangle::area() { return height*width; } double Rectangle::price() { return height*width*color; }小聪写的Circle类class Circle:public Shape { public: Circle(int c,double r); double getradius(); double area(); double price(); protected: double radius; };Circle::Circle(int c,double r):Shape(c) { radius=r; } double Circle::getradius() { return radius; }double Circle::area() { return PI*radius*radius; } double Circle::price() { return PI*radius*radius*color; }小聪的测试函数：int main(){RsubC rc=RsubC(1,2,3,1,1); cout<<"RsubC area:"<

提示：不用提交全部程序，只提交补充部分。

输入

无

输出

输出小聪测试的RsubC的面积。

样例输出

RsubC area:2.86

im0qianqian_站在回忆的河边看着摇晃的渡船终年无声地摆渡,它们就这样安静地画下黄昏画下清晨......

#include#define PI 3.14using namespace std;class Shape{public: Shape(); Shape(int c); int getcolor(); double area();protected: int color;};Shape::Shape(){ color=0;}Shape::Shape(int c){ color=c;}int Shape::getcolor(){ return color;}double Shape::area(){ return 10000;}class Rectangle:public Shape{public: Rectangle(int c,double w,double h); double getwidth(); double getheight(); double area(); double price();protected: double height; double width;};Rectangle::Rectangle(int c,double w,double h):Shape(c){ width=w; height=h;}double Rectangle::getwidth(){ return width;}double Rectangle::getheight(){ return height;}double Rectangle::area(){ return height*width;}double Rectangle::price(){ return height*width*color;}class Circle:public Shape{public: Circle(int c,double r); double getradius(); double area(); double price();protected: double radius;};Circle::Circle(int c,double r):Shape(c){ radius=r;}double Circle::getradius(){ return radius;}double Circle::area(){ return PI*radius*radius;}double Circle::price(){ return PI*radius*radius*color;}class RsubC:public Shape{public: RsubC(int c,double w,double h,double r,bool s); double area();private: Rectangle rectangle; Circle circle; bool sign;};RsubC::RsubC(int c,double w,double h,double r,bool s):Shape(c),rectangle(c,w,h),circle(c,r),sign(s) {}double RsubC::area(){ if(sign==0) return rectangle.area()+circle.area(); else return rectangle.area()-circle.area();}int main(){ RsubC rc=RsubC(1,2,3,1,1); cout<<"RsubC area:"<

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。