He said the ans can maximum be 2 because we can isolate the corner points buy making the two adjacent boxes 0, but what if all the corner points already have 0 in them, then ans can be greater than 2?
He said the ans can maximum be 2 because we can isolate the corner points buy making the two adjacent boxes 0, but what if all the corner points already have 0 in them, then ans can be greater than 2?