Validating Dates in C++

I am currently writing a simple numerology program. I am having problems validating the dates entered by a user. The major source of the problem is how to make sure the date the user entered is actually within the month (for example: 4/31 can’t be entered). This is what I currently have for checking dates:


Any hints would be great. If you give some type of example of how I could do this I ask that the example be basic c++. I can’t use functions on this program. I am pretty limited on what I can and cannot use.

lol

Can you use strings??
use it then use the cout << month << "/" << day << endl;

With the exception of the freak month (Feb) that can be handled with a special case, we know that every second month has
the same amount of days up until aug, at which point things are reversed. Do you know the modulus operator "%" (remainder of integer division), we can use it like so:

int month = the number of the month (with Jan being 1, feb 2 ...)
int day = day to check;

if ( month <= 7) { //less than or equal to july
if ((month % 2) == 0) {
//every second month from feb to june
if (month == 2) {
//deal with feb
if (day > 28) //or 29, or however you choose to deal with this one
DO SOMETHING HERE
}
else
if (day > 30)
DO SOMETHING HERE
}
else {
//every second month jan to july (31 days)
if (day > 31)
DO SOMETHING HERE
}
}

else { //greater than july
if ((month % 2) == 0) {
//every second month from aug to dec (31 days)
if (day > 31)
DO SOMETHING HERE
}
else {
//every second month sept to nov (30 days)
if (day > 30)
DO SOMETHING HERE
}

}


Hope this helps,
Kernel Mustard