Public/FindEmptySpot.ps1
|
<# .SYNOPSIS Finds an available spot to play a number .DESCRIPTION Iterates through the entire sudoku board until a spot is found to play. .PARAMETER SudokuGrid The current Sudoku grid .EXAMPLE FindEmptySpot -SudokuGrid $SudokuGrid .INPUTS Takes in a Sudoku grid. .OUTPUTS Returns a tuple that contains the row and column of the empty spot. If there is no empty spot available, returns $null #> Function FindEmptySpot { param( [parameter(Mandatory=$true)] [System.Object]$SudokuGrid ) for ($i = 0; $i -lt 9; $i++) { for($j = 0; $j -lt 9; $j++) { if ($SudokuGrid[$i][$j] -eq '-') { return [System.Tuple]::Create(($i+1),($j+1)) } } } return $null } |