Computer Programming

[wolfyy1]

#include<iostream.h>
void drawbar(int, char );
void drawbox(int, char );
int main()
{
drawbox(4,'%');
return (0);
}
void drawbar(int length, char mark)
{
for(int i = 0; i < length; i++)
cout<<mark;
cout<<endl;
}
//------------------------------
void drawbox(int length, char mark)
{
for (int y = 0; y < length; y++)
{
drawbar(length, mark);
}
}

[Tarık1989]

What is this?