I want to use below code in invoke code activity but I dont know how to do that

Help
, ,
1 
Imports System

Class GFG
    Public Shared Function isSafe(ByVal board As Integer(,), ByVal row As Integer, ByVal col As Integer, ByVal num As Integer) As Boolean
        For d As Integer = 0 To board.GetLength(0) - 1

            If board(row, d) = num Then
                Return False
            End If
        Next

        For r As Integer = 0 To board.GetLength(0) - 1

            If board(r, col) = num Then
                Return False
            End If
        Next

        Dim sqrt As Integer = CInt(Math.Sqrt(board.GetLength(0)))
        Dim boxRowStart As Integer = row - row Mod sqrt
        Dim boxColStart As Integer = col - col Mod sqrt

        For r As Integer = boxRowStart To boxRowStart + sqrt - 1

            For d As Integer = boxColStart To boxColStart + sqrt - 1

                If board(r, d) = num Then
                    Return False
                End If
            Next
        Next

        Return True
    End Function

    Public Shared Function solveSudoku(ByVal board As Integer(,), ByVal n As Integer) As Boolean
        Dim row As Integer = -1
        Dim col As Integer = -1
        Dim isEmpty As Boolean = True

        For i As Integer = 0 To n - 1

            For j As Integer = 0 To n - 1

                If board(i, j) = 0 Then
                    row = i
                    col = j
                    isEmpty = False
                    Exit For
                End If
            Next

            If Not isEmpty Then
                Exit For
            End If
        Next

        If isEmpty Then
            Return True
        End If

        For num As Integer = 1 To n

            If isSafe(board, row, col, num) Then
                board(row, col) = num

                If solveSudoku(board, n) Then
                    Return True
                Else
                    board(row, col) = 0
                End If
            End If
        Next

        Return False
    End Function

    Public Shared Sub print(ByVal board As Integer(,), ByVal N As Integer)
        For r As Integer = 0 To N - 1

            For d As Integer = 0 To N - 1
                Console.Write(board(r, d))
                Console.Write(" ")
            Next

            Console.Write(vbLf)

            If (r + 1) Mod CInt(Math.Sqrt(N)) = 0 Then
                Console.Write("")
            End If
        Next
    End Sub

    Public Shared Sub Main(ByVal args As String())
        Dim board As Integer(,) = New Integer(,) {
        {3, 0, 6, 5, 0, 8, 4, 0, 0},
        {5, 2, 0, 0, 0, 0, 0, 0, 0},
        {0, 8, 7, 0, 0, 0, 0, 3, 1},
        {0, 0, 3, 0, 1, 0, 0, 8, 0},
        {9, 0, 0, 8, 6, 3, 0, 0, 5},
        {0, 5, 0, 0, 9, 0, 6, 0, 0},
        {1, 3, 0, 0, 0, 0, 2, 5, 0},
        {0, 0, 0, 0, 0, 0, 0, 7, 4},
        {0, 0, 5, 2, 0, 6, 3, 0, 0}}
        Dim N As Integer = board.GetLength(0)

        If solveSudoku(board, N) Then
            print(board, N)
        Else
            Console.Write("No solution")
        End If
    End Sub
End Class
3

Hi @AmitB

I fixed your formatting for the entire block of code (see how it’s done by editing your post :slight_smile: )

Also, see this list of solved topics:
https://forum.uipath.com/search?q=invoke%20code%20status%3Asolved

It should give you enough clues to solve the issue.