now I am completed the course what can I do?

Question

c++

Answer 1

Make a simple LAN chat system with it now. That'll help teach you some of the stuff that SoloLearn doesn't cover, and help you apply all of the stuff you did learn.

Good luck!

Answer 2

Go out and explore the advanced stuff

Answer 3

Make a code to show it off...

And since you have achieved something, lemme do the Burey Ritual.
https://www.sololearn.com/discuss/320540/?ref=app