You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Go through each of the spot and mark the number appeared for row, col, and block.
To mark each of the block, we can use (i/3) * 3 + (j/3) to mark each of the block in the board.