How to make a calender program with reminder in c++

Question

just want to know what logic to use to calculte days apply notes etc

Answer 1

I think my C++ Program that generates calendar is going to help you.

Link: https://code.sololearn.com/cV6hV2racWih/#cpp

Answer 2

i have a basic program ready .
i want upgrade it
1.by clickibg up or down i must be able to change year or month
2.by clickibg on a specific date i must be able to add notes to that day

cant figure out how to do this

Answer 3

Divide it into smaller problems and try to face them alone before asking. Then we can help you.

Answer 4

I don't know your code, how should I tell you?