如何将光标定位在屏幕上？

I'm new in programming and currently learning about arrays in C. I'm making a puzzle that contains 15 numbered square pieces mounted on a frame and one piece is empty.It allow the user to hit any of the arrow keys(up,down,left,right).The user will continue hitting the arrow keys till the numbers aren't arranged in ascending order.These pieces can be move horizontally and vertically. My problem is that i don't know how to position the cursor.I know a library function I'm new in programming and currently learning a