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Permutations Or Combinations Of A Set Of Numbers

I want to output every combination of a set of numbers. These permutations must include combinations that use only a few of the numbers as well as all

as well as 1,2,3,4,5,6,7,8

The macro below is from
This only produces combinations using every number. I'm not sure how this macro works but hopefully someone with better know how could run with it or break it down for me!

I only need to achieve this once but am pretty sure doing it manually will cause error and or madness

Dim CurrentRowSub GetString() Dim InString As String InString = InputBox("Enter text to permute:") If Len(InString) < 2 Then Exit Sub If Len(InString) >= 8 Then MsgBox "Too many permutations!" Exit Sub Else ActiveSheet.Columns(1).Clear CurrentRow = 1 Call GetPermutation("", InString) End IfEnd SubSub GetPermutation(x As String, y As String)' The source of this algorithm is unknown 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 IfEnd Sub

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I must first thank the forums for the amazing help in making my life just a little easier, especially member "shg" for helping set up the VBA code to help me.

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If my parking charge is 80 cents
What is the formula to use to find:
(i) The combinations (answer should be 34(?) posible combinations)
(ii) The unique combinations

whilst if the parking charge was 50 cents
Than there would be 8 possible combinations (as the answer to the formula!)

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