Complex Again

题目描述：

I know you have learned operator overloading. Your task is to finish this easy class Complex according to the function main.

class Complex {

      //A friend function to print Complex numbers like a+bi where a is the real part and b is the imaginary part
      
public:
   Complex(double = 0.0, double = 0.0);
   
   //Some function about operator overloading.

   void SetReal(double re){real = re;}
   void SetImag(double im){imag = im;}
private:
   double real; 
   double imag; 
};

 

tip:

You should first enter the real part and then the imaginary part.

That is , cin >> x1 >> y1; Complex C(x1,y1);  x1 is the real part and y1 is the imaginary part.

Sample Input

4 6 1 1

2 3

Sample Output

2+3i
4+6i
1+1i
5+7i
3+5i
-2+10i
5+1i
5+7i
4+6i
-2+10i
4+6i
1
0
代码：

 

#include <iostream>#include "Complex.h"using namespace std;int main(int argc, const char *argv[]) {    double x1, y1, x2, y2;    cin >> x1 >> y1 >> x2 >> y2;    // x1 and x2 are the real part, y1 and y2 are the imaginary part    Complex a(x1, y1), b(x2, y2);     Complex c = a;    double c1, c2;    // c1 is the real part and c2 is the imaginary part    cin >> c1 >> c2;     c.SetReal(c1);    c.SetImag(c2);     cout << c << endl;    cout << a << endl;     c = b;    cout << c << endl;     // a and b are not changed.    cout << (a + b) << endl;    cout << (a - b) << endl;    cout << (a * b) << endl;    cout << (a / b) << endl;     a += b;    cout << a << endl;    a -= b;    cout << a << endl;    a *= b;    cout << a << endl;    a /= b;    cout << a << endl;     cout << (a == a) << endl;    cout << (a != a) << endl;     return 0;}

#include <iostream>#include "Complex.h"using namespace std;Complex::Complex(double real, double imag) {  this->real = real;  this->imag = imag;} Complex::Complex(const Complex& otherComplex) {  real = otherComplex.real;  imag = otherComplex.imag;} ostream& operator <<(ostream& out, const Complex& c) {  out << c.real << "+" << c.imag << "i";  return out;} Complex Complex:: operator +(const Complex& c) {  double tmpreal = real + c.real;  double tmpimag = imag + c.imag;   Complex tmp(tmpreal, tmpimag);   return tmp;} Complex Complex:: operator -(const Complex& c) {  double tmpreal = real - c.real;  double tmpimag = imag - c.imag;   Complex tmp(tmpreal, tmpimag);   return tmp;} Complex Complex:: operator *(const Complex& c) {  double tmpreal = real * c.real - imag * c.imag;  double tmpimag = imag * c.real + real * c.imag;   Complex tmp(tmpreal, tmpimag);   return tmp;} Complex Complex:: operator /(const Complex& c) {  double t = c.real * c.real + c.imag * c.imag;  double tmpreal = (real * c.real + imag * c.imag) / t;  double tmpimag = (imag * c.real - real * c.imag) / t;   Complex tmp(tmpreal, tmpimag);   return tmp;} Complex& Complex:: operator = (const Complex& otherComplex) {  real = otherComplex.real;  imag = otherComplex.imag;  return *this;} Complex& Complex:: operator += (const Complex& otherComplex) {  *this = *this + otherComplex;  return *this;} Complex& Complex:: operator -= (const Complex& otherComplex) {  *this = *this - otherComplex;  return *this;} Complex& Complex:: operator *= (const Complex& otherComplex) {  *this = *this * otherComplex;  return *this;} // a / b, b != 0Complex& Complex:: operator /= (const Complex& otherComplex) {  *this = *this / otherComplex;  return *this;} bool Complex:: operator == (const Complex& otherComplex) {  if (real == otherComplex.real && imag == otherComplex.imag)    return true;  else    return false;} bool Complex:: operator != (const Complex& otherComplex) {  return !(*this == otherComplex);}

#ifndef COMPLEX_H#define COMPLEX_H#include <iostream>using namespace std;class Complex {  friend ostream& operator <<(ostream&, const Complex&);  public:  Complex(double = 0, double = 0);  Complex(const Complex& otherComplex);   Complex& operator = (const Complex& otherComplex);  Complex& operator += (const Complex& otherComplex);  Complex& operator -= (const Complex& otherComplex);  Complex& operator *= (const Complex& otherComplex);  Complex& operator /= (const Complex& otherComplex);   Complex operator +(const Complex&);  Complex operator -(const Complex&);  Complex operator *(const Complex&);  Complex operator /(const Complex&);   bool operator == (const Complex& otherComplex);  bool operator != (const Complex& otherComplex);   void SetReal(double re) {    real = re;  }  void SetImag(double im) {    imag = im;  }  private:  double real;  double imag;};#endif


                                             
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