#pragma once
#include <iostream> 
using namespace std;


class Rational {
public:
    int Chisl;
    int Znam;
    bool sign=0;
    Rational();
    Rational(int _x, int _y);
    Rational(int _x);
    Rational(double _x);
    void socr();


    //с Rational
    const Rational& operator += (const Rational& r);
    const Rational& operator -= (const Rational& r);
    const Rational& operator *= (const Rational& r);
    const Rational& operator /= (const Rational& r);


    //операции c int
    const Rational& operator *= (const int& r);
    const Rational& operator += (const int& r);
    const Rational& operator -= (const int& r);
    const Rational& operator /= (const int& r);


    const Rational& operator * (const int& i);
    const Rational& operator + (const int& i);
    const Rational& operator - (const int& i);
    const Rational& operator / (const int& i);



    //сравнение между rational
    const bool& operator > (const Rational& r);
    const bool& operator < (const Rational& r);
    const bool& operator >= (const Rational& r);
    const bool& operator <= (const Rational& r);
    const bool& operator == (const Rational& r);
    const bool& operator != (const Rational& r);


    //операции  с Rational
    const Rational& operator + (const Rational& r1);
    const Rational& operator - (const Rational& r1);
    const Rational& operator * (const Rational& r1);
    const Rational& operator / (const Rational& r1);

    //корень
    const double root();
    //перевод в double
    const double to_double();

};

istream& operator>>(istream& is, Rational& R);
ostream& operator<<(ostream& os, Rational& R);