Solved

stopping a number from permutating twice

Posted on 2006-10-23
5
150 Views
Last Modified: 2010-04-30
When I enter a number to be permutated, the program permutates the entered number twice I.E
If I enter the number 898 the program returns 898, 988, 889, 898, 988, 889
 The program works fine when i enter a number like 123 or 1234.
will not work for a number like 1122, 1223 these type of numbers get permutated twice

Here is a copy of the program

Dim CurrentRow
Sub GetString()
    Dim InString As String
    InString = InputBox("Enter text to permute:")
    Range("a:a").ClearContents
    If Len(InString) < 2 Then Exit Sub
    If Len(S) >= 8 Then
        MsgBox "Too many permutations!"
        Exit Sub
    Else
        ActiveSheet.Columns(1).Clear
        CurrentRow = 1
        Call GetPermutation("", InString)
    End If
End Sub

Sub GetPermutation(x As String, y As String)
    Dim i As Integer, j As Integer
    j = Len(y)
    If j < 2 Then
        Cells(CurrentRow, 1) = x & y
        CurrentRow = CurrentRow + 1
    Else
        For i = 1 To j
            Call GetPermutation(x + Mid(y, i, 1), _
            Left(y, i - 1) + Right(y, j - i))
        Next
    End If
0
Comment
Question by:tbell000
  • 2
  • 2
5 Comments
 
LVL 15

Expert Comment

by:JackOfPH
ID: 17793268
0
 
LVL 15

Expert Comment

by:JackOfPH
ID: 17793273
0
 
LVL 35

Expert Comment

by:Raynard7
ID: 17793298
Hi,

I would just dump everything into a dictionary (include the microsoft scripting runtime library) and if it exists then not repeat it then just go through and output everything in the array

ie

Dim CurrentRow
Sub GetString()
    Dim InString As String
    InString = InputBox("Enter text to permute:")
    Range("a:a").ClearContents
    If Len(InString) < 2 Then Exit Sub
    If Len(S) >= 8 Then
        MsgBox "Too many permutations!"
        Exit Sub
    Else
        ActiveSheet.Columns(1).Clear
        CurrentRow = 1
        Dim n As New Dictionary
        Call GetPermutation("", InString, n)
    End If
End Sub

Sub GetPermutation(x As String, y As String, n As Dictionary)
    Dim i As Integer, j As Integer
    j = Len(y)
    If j < 2 Then
        If n.Exists(x & y) = False Then
            Cells(CurrentRow, 1) = x & y
            CurrentRow = CurrentRow + 1
            n.Add x & y, 1
        End If
    Else
        For i = 1 To j
            Call GetPermutation(x + Mid(y, i, 1), _
            Left(y, i - 1) + Right(y, j - i), n)
        Next
    End If
End Sub
0
 
LVL 35

Accepted Solution

by:
Raynard7 earned 500 total points
ID: 18024695
My Option is tested and works, those provided by JackOfPh were not exactly on point.
0

Featured Post

Better Security Awareness With Threat Intelligence

See how one of the leading financial services organizations uses Recorded Future as part of a holistic threat intelligence program to promote security awareness and proactively and efficiently identify threats.

Join & Write a Comment

Suggested Solutions

If you have ever used Microsoft Word then you know that it has a good spell checker and it may have occurred to you that the ability to check spelling might be a nice piece of functionality to add to certain applications of yours. Well the code that…
If you need to start windows update installation remotely or as a scheduled task you will find this very helpful.
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now