I'm having problems with using code coach. Can someone please explain how it works.

Question

I have solved few problems thinking It'd be on me to choose how to take input and print output, can someone please explain how it works and correct me if I'm wrong. I'm facing no problems in the code but working in code coach.

Answer 1

To give you helpful answers, you should put your code in playground and then link it here. Thanks!

Answer 2

I'd be glad if someone please explain this for me.