Meaning

[adibahuda]

what is system('CLS') and system('PAUSE')?
what is the used for these two??

[Gaminic]

CLS clears the console window, pause freezes the program for a few moments.

They shouldn't be used, though.
http://www.cplusplus.com/articles/j3wTURfi/

[adibahuda]

oh....now i know it tq