#include <iostream>
#include <fstream>
using namespace std;
class Interval{
protected:
double kezdo,veg;
public:
Interval(double a,double b);
Interval();
Interval(char * );
void save(char*);
void print();
double length();
};
Interval::Interval(double a,double b){
kezdo=a;
veg=b;

}
double Interval::length(){
return veg-kezdo;
}
void Interval::print(){
cout<<"[ "<<kezdo<<" , "<<veg<<" ]";
}
Interval::Interval(char* file){
ifstream ebbol;
ebbol.open(file);
ebbol.get();
ebbol>>kezdo;
ebbol.get();
ebbol.get();
ebbol>>veg;
ebbol.get();
ebbol.close();
}
void Interval::save(char* file){
ofstream hova;
hova.open(file);
hova<<"( "<<kezdo<<" , "<<veg<<" )";
hova.close();
}
Interval::Interval(){
cout<<"Kérem add meg az intervalt: (";
cin>>kezdo;
cout<<" , ";
cin>>veg;
cout<<" )"<<endl;

}
class ColorInterval:public Interval{
    char* szin;
    public:
    ColorInterval(double,double,char*);
    void print();
};
ColorInterval::ColorInterval(double kezdo,double veg,char* szin):Interval(kezdo,veg){

this->szin=szin;
}
void ColorInterval::print(){
cout<<" [ "<<kezdo<<" , "<<veg<<" ] ( "<<szin<<" )";
}
int main(){
/*ColorInterval ez(10,20,"piros");
ez.print();*/
ColorInterval *ci=new ColorInterval(10,20,"piros");
ci->print();
cout<<endl;
ci->save("haha.txt");
Interval *i=new Interval("haha.txt");
//i->save("haha");

i->print();

}