//fork in the road
//explaining  the notions of if, then, else statements
//Yoram Chisik 2005

#include <iostream>
#include <string>

int main()
{
    std::string direction;
    
    std::cout << "You have come to a fork in the road,\nenter the direction you want to follow:";
    std::cin >> direction;
    
    if (direction == "left")
    {
       std::cout << "You have decided to turn left\n";
    }
    
    else if (direction == "right")
    {
       std::cout << "You have decided to turn right\n";
    }
    
    else if (direction == "ahead")
    {
       std::cout << "You have decided to move straight ahead\n";
    }
    
    else if (direction == "back")
    {
       std::cout << "You have decided to turn back\n";
       std::cout << "How are you turning back [reverse, uturn]:";
       std::cin >> direction;
       
       if(direction == "reverse")
       {
           std::cout << "You have decided to reverse\n";
       }
       
       else if (direction == "uturn")
       {
           std::cout << "You have decided to do a uturn\n";
       }
       
       else
       {
           std::cout << direction << " does not compute \n";
       }
    }

    else
    {
        std::cout << "You have made an impossible choice and will therefore vanish into the void\n";
    }
    
    system("PAUSE");
    
    return 0;
}