where i can see the programs i have typed?

Question

of c++

Answer 1

Are you asking about the code playgrounds? :)
Just go under profile, activity, click on codes section and you'll see all your codes.
A shortcut: profile icon at the bottom of the screen, and filter "my codes".

Answer 2

You have to save your code also after finishing your work

Answer 3

On sololearn, your saved programs can be accessed either via your profile or "code bits" section of the app/site.