When to choose 1D and 2D

#1

How to know whether to use 1D or 2D for a given problem.

#2

read this answer please
https://www.quora.com/In-DP-problems-how-do-you-know-whether-to-use-a-1D-array-table-or-a-2D-array-table

#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.