#include <stdio.h>
#include <stdlib.h>
#include<conio.h> // clrscr() requires a header file of conio.h
int main()
{
printf("Hello World errado");
system("clear"); // if you are using GCC compiler / online compilers, use this instead of clrscr()
clrscr(); // if you are compiling on Turbo C++ compiler
printf("Hello World correto");
getch();
}