Mi a különbség? C++

//main.cpp

# include <iostream>

typedef unsigned short ushort;

using std::cout;

using std::cin;

using std::endl;

int main()

{

cin.get();

return 0;

}

//////////////////////////////////////////////////////////

//main.cpp

# include <iostream>

# include <windows.h>

typedef unsigned short ushort;

using std::cout;

using std::cin;

using std::endl;

int main()

{

cin.get();

return EXIT_SUCCESS;

}