Hackerman

Hacker-man's crew is trying to get into Swiss bank's locker, but in order to do so, hacker-man has to bypass a really tough laser lock. He can see a square matrix with $N$ rows and $N$ columns. Inside it, he sees $K$ lasers in fixed coordinates. Each laser can be oriented vertically or horizontally, but not both. If placed horizontally, a laser will light up all cells in its row with distance at