CPP
cpp
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#include <iostream>
#include <memory>
using namespace std;
class state
{
public:
virtual void goToGym() = 0;
virtual void startToGoToOffice() = 0;
virtual void startToGoToHome() = 0;
virtual void listenMusic() = 0;
virtual void attendMeeting() = 0;
virtual void goToMeetingRoom() = 0;
};
class atHome : public state
{
public:
void goToGym() { cout << "Going to gym and came back home\n"; }
void startToGoToOffice() { cout << "Going to office\n";}
void startToGoToHome() { throw invalid_argument("Already at home. Cannot go to home\n"); }
void listenMusic() { cout << "Listening to music\n"; }
void attendMeeting() { throw invalid_argument("Already at home. Cannot attend meeting\n"); }
void goToMeetingRoom() { throw invalid_argument("Already at home. Cannot go to meeting room\n"); }
};
class atOffice : public state
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