Greatest between two numbers

I am going to write a program by which  You can check greatest between two numbers

void main()
{
    int a,b,c;
    clrscr();
    printf("Enter First Number::");
    scanf("%d",&a);
    printf("Enter Second Number::");
    scanf("%d",&b);
    c=a>b?a:b;
    printf("Greatest number is::%d",c);
    getch();
}