Pattern Problem

#1

I’m only able to do half of this problem. Here’s my code - https://pastebin.pl/view/d00971be

Please guide me ahead.

#2

Refer this explanation and then try Pattern mountain question

#3

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.