Hello guys... What am i doing wrong? I am getting errors

Question

https://code.sololearn.com/cVpD9eQxL1L7/?ref=app

Answer 1

https://code.sololearn.com/c6oj0KdIEkcn/?ref=app
Your Array declaration is wrong
Iterator type not specified
Arrays index is out of bounds cos you used::
i<=arr.length
instead of
i<arr.length

Answer 2

thank you so much