Need some help for c++

Question

hey guys there are some programs in c++ which are easy to write but the logic is hard to remember.
like factorial, armstrong number, palindrome character strings....
how do you remember such type of programs?

Answer 1

You don't remember logic. You understand them, and through understanding, you can write different implementations to materialize the same piece of logic.

Answer 2

practice and understanding make the difference
it should be learned it should be understood and then move forward....

Answer 3

Make paper printouts of all your programmes & keep them in backpack or briefcase in order to refer back to them occasionally. Also, index all your work to make the research quicker & easier.