C8-1 复数加减乘除

最新推荐文章于 2022-07-06 12:41:56 发布

Eroslol

最新推荐文章于 2022-07-06 12:41:56 发布

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#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
using namespace std;

class Complex{
public:
	Complex(double r = 0.0, double i = 0.0) : real(r), imag(i) {};
	Complex operator+ (const Complex &c2) const;
	Complex operator- (const Complex &c2) const;

	/*实现下面三个函数*/
	Complex operator* (const Complex &c2) const;//成员函数
	Complex operator/ (const Complex &c2) const;//成员函数
	friend ostream & operator<< (ostream &out, const Complex &c);//非成员函数，声明为友元

private:
	double real;
	double imag;
};

Complex Complex::operator+ (const Complex &c2) const
{
	return Complex(real + c2.real, imag + c2.imag);
}

Complex Complex::operator- (const Complex &c2) const
{
	return Complex(real - c2.real, imag - c2.imag);
}

Complex Complex::operator* (const Complex &c2) const
{
	return Complex(real*c2.real - imag*c2.imag, imag*c2.real + real*c2.imag);
}
Complex Complex::operator/ (const Complex &c2) const
{
	return Complex((real*c2.real + imag*c2.imag) / (c2.real*c2.real + c2.imag*c2.imag), (imag*c2.real - real*c2.imag) / (c2.real*c2.real + c2.imag*c2.imag));
}

ostream & operator<< (ostream &out, const Complex &c)
{
	out << c.real << " " << c.imag;
	return out;
}

int main() {
	double real, imag;
	cin >> real >> imag;
	Complex c1(real, imag);
	cin >> real >> imag;
	Complex c2(real, imag);
	cout << c1 + c2 << endl;
	cout << c1 - c2 << endl;
	cout << c1 * c2 << endl;
	cout << c1 / c2 << endl;
}