YTU 2441: C++习题 复数类--重载运算符2+
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2441: C++习题 复数类--重载运算符2+
时间限制: 1 Sec 内存限制: 128 MB提交: 847 解决: 618
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法运算。参加运算的两个运算量可以都是类对象,也可以其中有一个是整数,顺序任意。例如,c1+c2,i+c1,c1+i均合法(设i为整数,c1,c2为复数)。编写程序,分别求两个复数之和、整数和复数之和。
输入
两个复数
一个复数和一个整数
一个整数和一个复数
输出
两个复数之和、复数和整数之和,整数和复数之和。
样例输入
3 4 5 -103 4 55 3 4
样例输出
c1+c2=(8.00,-6.00i)c1+i=(8.00,4.00i)i+c1=(8.00,4.00i)
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()
{
real=0;
imag=0;
}
Complex(double r,double i)
{
real=r;
imag=i;
}
Complex operator+(Complex &c2);
Complex operator+(int &i);
friend Complex operator+(int&,Complex &);
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();
int i;
cin>>real>>imag;
cin>>i;
c3=Complex(real,imag)+i;
cout<<"c1+i=";
c3.display();
cin>>i;
cin>>real>>imag;
c1=Complex(real,imag);
c3=i+c1;
cout<<"i+c1=";
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() { real=0; imag=0; } Complex(double r,double i) { real=r; imag=i; } Complex operator+(Complex &c2); Complex operator+(int &i); friend Complex operator+(int&,Complex &); void display();private: double real; double imag;};Complex Complex:: operator +(Complex &c2){ Complex c; c.real=real+c2.real; c.imag=imag+c2.imag; return c;}Complex Complex:: operator +(int &i){ Complex c; c.real=real+i; c.imag=imag; return c;}Complex operator + (int &i,Complex &c2){ Complex c; c.real=i+c2.real; c.imag=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(); int i; cin>>real>>imag; cin>>i; c3=Complex(real,imag)+i; cout<<"c1+i="; c3.display(); cin>>i; cin>>real>>imag; c1=Complex(real,imag); c3=i+c1; cout<<"i+c1="; c3.display(); return 0;}
#include <iostream>#include <iomanip>using namespace std;class Complex{public: Complex() { real=0; imag=0; } Complex(double r,double i) { real=r; imag=i; } Complex operator+(Complex &c2); Complex operator+(int &i); friend Complex operator+(int&,Complex &); void display();private: double real; double imag;};Complex Complex:: operator +(Complex &c2){ Complex c; c.real=real+c2.real; c.imag=imag+c2.imag; return c;}Complex Complex:: operator +(int &i){ Complex c; c.real=real+i; c.imag=imag; return c;}Complex operator + (int &i,Complex &c2){ Complex c; c.real=i+c2.real; c.imag=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(); int i; cin>>real>>imag; cin>>i; c3=Complex(real,imag)+i; cout<<"c1+i="; c3.display(); cin>>i; cin>>real>>imag; c1=Complex(real,imag); c3=i+c1; cout<<"i+c1="; c3.display(); return 0;}
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