#include "iostream"

using namespace std;

class station{

public:

int oil;

void show();

void oiling(int);

station();

};

void station::show(){

cout<<"----주유소----\n남아있는 기름 : "<<oil<<endl;;

}

void station::oiling(int L){

oil-=L;

}

station::station(){

oil=500; //최초 기름의 양은 500L

}

class car{

public:

int oil;

void show();

void oiling(station *, int);

car();

};

void car::oiling(station *station, int L){

station->oiling(L);

oil+=L;

printf("자동차에 %d만큼 주유하였습니다.\n",L);

}

car::car(){

oil=10;

}

void car::show(){

cout<<"----자동차----\n남아있는 기름 : "<<oil<<endl;

}

int main(){

int L;

station Soil;

car chairman;

Soil.show();

chairman.show();

cout<<"----주유시스템----\n몇L를 주유합니까? : ";cin>>L;

chairman.oiling(&Soil, L);

Soil.show();

chairman.show();

return 0;

}