What's the use of C/C++ language? Where they r used? Why they r used? When they r used?

Answer 1

https://www.sololearn.com/Discuss/280672/?ref=app

Answer 2

they are used to design new programs which makes different and difficult logics simple and which everyone can implement, making the work easy and sufficient for everyone to use easily and as frequent as required. You dont need to apply the same logic again and again.