How i use clrscr ?

Question

i have write #include <conio.h> but still have an error. thank you.

Answer 1

use clrscr();

Answer 2

Depending on whether you use C++11 standard(Most of the modern compiler including this app use this standard) or older standard ( The one used in Turbo C++) You have to either use:
#include<conio.h> (For turbo c++)
or
#include<conio> (For this app)

To use clrscr():
#include<conio.h>
#include<iostream. h>
.
.
.
/*your code where you want to use clear the screen*/
clrscr();
..
..