Getting WA for using ArrayList and AC for using array (CHEFPSA)

help
1

can anybody help me with the qsn CHEFPSA Problem - CodeChef

i used ArrayList got WA:CodeChef: Practical coding for everyone
used array got AC:CodeChef: Practical coding for everyone
took me a lot of time to figure why I’m getting WA…
thanks

2

@revanthreddy85 can you please tell what was the mistake. Actually I am also facing same issue in other question.

3

@pankajpoply45 i got WA coz i used Arraylist ,used array got AC still dont know why…