Doubt in one test case

#1
#2

hello @anmolaggarwal.432

try this case->
4
1 2 2 1

#3

I cant find the error could you please correct my code

#4

check now->

#5

Please mark things you have done it in the code

#6

check now>

#7

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.