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' Combinations and permutations - vbs - 10/04/2017
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dim i,j
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Wscript.StdOut.WriteLine "-- Long Integer - Permutations - from 1 to 12"
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for i=1 to 12
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for j=1 to i
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Wscript.StdOut.Write "P(" & i & "," & j & ")=" & perm(i,j) & " "
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next 'j
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Wscript.StdOut.WriteLine ""
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next 'i
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Wscript.StdOut.WriteLine "-- Float integer - Combinations from 10 to 60"
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for i=10 to 60 step 10
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for j=1 to i step i\5
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Wscript.StdOut.Write "C(" & i & "," & j & ")=" & comb(i,j) & " "
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next 'j
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Wscript.StdOut.WriteLine ""
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next 'i
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Wscript.StdOut.WriteLine "-- Float integer - Permutations from 5000 to 15000"
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for i=5000 to 15000 step 5000
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for j=10 to 70 step 20
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Wscript.StdOut.Write "C(" & i & "," & j & ")=" & perm(i,j) & " "
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next 'j
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Wscript.StdOut.WriteLine ""
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next 'i
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Wscript.StdOut.WriteLine "-- Float integer - Combinations from 200 to 1000"
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for i=200 to 1000 step 200
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for j=20 to 100 step 20
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Wscript.StdOut.Write "P(" & i & "," & j & ")=" & comb(i,j) & " "
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next 'j
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Wscript.StdOut.WriteLine ""
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next 'i
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function perm(x,y)
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dim i,z
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z=1
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for i=x-y+1 to x
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z=z*i
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next 'i
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perm=z
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end function 'perm
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function fact(x)
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dim i,z
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z=1
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for i=2 to x
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z=z*i
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next 'i
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fact=z
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end function 'fact
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function comb(byval x,byval y)
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if y>x then
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comb=0
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elseif x=y then
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comb=1
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else
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if x-y<y then y=x-y
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comb=perm(x,y)/fact(y)
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end if
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end function 'comb
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