int main()
{
exercise1();
exercise2();
exercise3();
exercise4();
exercise5();
exercise7();
return 0;
}
int main ()
{
/*int select;
std::cout << "Select an exercise to run (1-4):\n";
std::cin >> select;
switch (select)
{
case 1 : exercise1();
break;
case 2 : exercise2();
break;
case 3 : exercise3();
break;
case 4 : exercise4();
break;
default : std::cout<< "some error happened";
break;
}*/
exercise2();
return 0;
}