Question

I’m trying to get this validation for a date entered, from Jan 01 1901 to Dec 31 2299, if the date is out of range, give a error message, this is my code, some how it doesn’t validate correctly, am I doing something wrong

int main (void)
{
    // insert code here...
    int day,month,year;
    printf("Enter Year, Month and Day as YYYY,MM,DD\n");

    scanf("4%d 2%d 2%d", &year, &month, &day);

    if (year>1900 && year <2300) {
        if (month>=1 && month <=12)
            if (day >=1 && day <=31)
                printf("correct/n");
            else 
                printf("invalid/n");
    }
    return 0;
}

Answer 1

The problem is that you’re using nested if statements, but you don’t have enough else statements. If you simply consolidate the statements it should work.

if (year > 1900 && year < 2300 &&
    month > 0 && month < 13 &&
    day > 0 && day < 32)
{
    printf("correct\n");
}
else
{
    printf("invalid\n");
}