YTU 2440: C++习题 复数类--重载运算符+,-,*,/

2440: C++习题 复数类--重载运算符+,-,*,/

时间限制: 1 Sec  内存限制: 128 MB

提交: 1189  解决: 774

题目描述

定义一个复数类Complex，重载运算符“+”,“-”,“*”,“/”，使之能用于复数的加、减、乘、除。运算符重载函数作为Complex类的成员函数。编写程序，分别求两个复数之和、差、积和商。

输入

两个复数

输出

两个复数之和、差、积和商

样例输入

3 4
5 -10

样例输出

c1+c2=(8.00,-6.00i)
c1-c2=(-2.00,14.00i)
c1*c2=(55.00,-10.00i)
c1/c2=(-0.20,0.40i)

提示

前置代码及类型定义已给定如下，提交时不需要包含，会自动添加到程序前部







/* C++代码 */



#include <iostream>



#include <iomanip>



using namespace std;



class Complex



{



public:



    Complex();



    Complex(double r,double i);



    Complex operator+(Complex &c2);



    Complex operator-(Complex &c2);



    Complex operator*(Complex &c2);



    Complex operator/(Complex &c2);



    void display();



private:



    double real;



    double imag;



};







主函数已给定如下，提交时不需要包含，会自动添加到程序尾部







/* C++代码 */







int main()



{



    double real,imag;



    cin>>real>>imag;



    Complex c1(real,imag);



    cin>>real>>imag;



    Complex c2(real,imag);



    cout<<setiosflags(ios::fixed);



    cout<<setprecision(2);



    Complex c3=c1+c2;



    cout<<"c1+c2=";



    c3.display();



    c3=c1-c2;



    cout<<"c1-c2=";



    c3.display();



    c3=c1*c2;



    cout<<"c1*c2=";



    c3.display();



    c3=c1/c2;



    cout<<"c1/c2=";



    c3.display();



    return 0;



}

迷失在幽谷中的鸟儿，独自飞翔在这偌大的天地间，却不知自己该飞往何方……

#include <iostream>
#include <iomanip>
using namespace std;
class Complex
{
public:
    Complex();
    Complex(double r,double i);
    Complex operator+(Complex &c2);
    Complex operator-(Complex &c2);
    Complex operator*(Complex &c2);
    Complex operator/(Complex &c2);
    void display();
private:
    double real;
    double imag;
};
Complex::Complex()
{
    real=0;
    imag=0;
}
Complex::Complex(double r,double i)
{
    real=r;
    imag=i;
}
Complex Complex::operator-(Complex &c2)
{
    Complex c;
    c.real=real-c2.real;
    c.imag=imag-c2.imag;
    return c;
}
Complex Complex::operator +(Complex &c2)
{
    Complex c;
    c.real=real+c2.real;
    c.imag=imag+c2.imag;
    return c;
}
Complex Complex::operator /(Complex &c2)
{
    Complex c;
    c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);
    c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);
    return c;
}
Complex Complex::operator *(Complex &c2)
{
    Complex c;
    c.real=real*c2.real-imag*c2.imag;
    c.imag=imag*c2.real+real*c2.imag;
    return c;
}
void Complex::display()
{
    cout<<"("<<real<<","<<imag<<"i)"<<endl;
}
int main()
{
    double real,imag;
    cin>>real>>imag;
    Complex c1(real,imag);
    cin>>real>>imag;
    Complex c2(real,imag);
    cout<<setiosflags(ios::fixed);
    cout<<setprecision(2);
    Complex c3=c1+c2;
    cout<<"c1+c2=";
    c3.display();
    c3=c1-c2;
    cout<<"c1-c2=";
    c3.display();
    c3=c1*c2;
    cout<<"c1*c2=";
    c3.display();
    c3=c1/c2;
    cout<<"c1/c2=";
    c3.display();
    return 0;
}