Compute Square and Cube With Turbo C++

Code For Turbo C++
#include<stdio.h>
#include<conio.h>

int num,sq,cube;
comp_sq();
comp_cube();
int main()
{
    clrscr();
    printf("Enter Number:");
    scanf("%d",&num);
    comp_sq();
    comp_cube();
    getch();
    return 0;
}
comp_sq()
{
    sq=num*num;
    printf("The Square of %d is: %d\n",num,sq);
}
comp_cube()
{
    cube=num*num*num;
    printf("The cube of %d is: %d\n",num,cube);
}