give integer array length arr return true possible reorder arr arr2 1 2 arr2 0 lenarr 2 false Example 1input arr 3136output falseExample 2input arr 2126output falseExample 3Input arr 4224output trueexplanation we group 24 24 form 2424 2424 constraints2 arrlength 3 104arrlength even105 arri 105