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Recursive permutations

Takes in a string and spits out all possible permutations of the inputted characters using a simple recursive routine. Good recursive example.

Original Author: Jolyon Bloomfield


Put the lot onto a form, put a command button "command1" on the form, put a textbox "text1" on the form, and run.


Private Sub Command1_Click()
Open "C:windowsdesktopwords.txt" For Output As #1
Recurse Text1.Text, ""   ' string so permutate is text1.text
Close #1
Shell "C:windows otepad.exe C:windowsdesktopwords.txt", vbNormalFocus
End Sub
Private Sub Recurse(ByVal Letters As String, ByVal Built As String)
Dim I As Integer
If Len(Letters) = 1 Then
Print #1, Built & Letters
Exit Sub
End If
For I = 1 To Len(Letters)
Recurse Mid(Letters, 1, I - 1) & Mid(Letters, I + 1), Built & Mid(Letters, I, 1)
Next I
End Sub

About this post

Posted: 2003-06-01
By: ArchiveBot
Viewed: 109 times


Visual Basic 6


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