system("cls"); and Sleep(time); in sololearn

Question

system("cls"); and Sleep(time); work in ms Visual Studio , but what is same function in sololearn?

Answer 1

You cant use system("cls") in SL codeplayground or any other function

Answer 2

"cls" is for terminals. The output panel is not a terminal.
sleep works but again, not a terminal -- I use it for timing tests, not UI.