Having Trouble in SImple C Program

Question

I'm having problem with a simple C program. Even if I enter a year between 1000 and 1999 it still displays invalid year. Please tell me what's happening??

#include <stdio.h>

main()
{
    int year;
c:
    printf("\n\nEnter a Year: ");
    scanf("%d", year);

    if ((year < 1000) || (year > 1999))
    {
        printf("\n\nInvalid Year");
        goto c;
    }
    convert(year);

}
convert(int year)
{
    printf("%d", year);
}

Answer 1

You need to pass an address to scanf, i.e.:

scanf("%d", &year);

Note the ampersand.