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' Generates Magic Squares of order 5 for integers as defined in area a1()

' Tested with Office 2007 under Windows 7

Sub MgcSqr5a4()

Dim a25(25), a1(25), a(25), b1(159), b(159), c(25)

y = MsgBox("Locked", vbCritical, "Routine MgcSqr5a4")
End

n2 = 0: n9 = 0: k1 = 1: k2 = 1
m1 = 1: m2 = 25: s1 = 425

'   Define variables

    a1(1) = 11:   a1(2) = 12:   a1(3) = 15:   a1(4) = 18:   a1(5) = 19:
    a1(6) = 20:   a1(7) = 21:   a1(8) = 24:   a1(9) = 27:   a1(10) = 28:
    a1(11) = 81:  a1(12) = 82:  a1(13) = 85:  a1(14) = 88:  a1(15) = 89:
    a1(16) = 142: a1(17) = 143: a1(18) = 146: a1(19) = 149: a1(20) = 150:
    a1(21) = 151: a1(22) = 152: a1(23) = 155: a1(24) = 158: a1(25) = 159:

    For i1 = 1 To 25
        b1(a1(i1)) = a1(i1)
    Next i1
    
'   Generate data
    
    Sheets("SqrC").Select
    
    t1 = Timer

    For j25 = 13 To 13                                          'a(25)
    If b(a1(j25)) = 0 Then b(a1(j25)) = a1(j25): c(25) = a1(j25) Else GoTo 250
    a(25) = a1(j25)
    For j24 = 16 To 16                                          'a(24)
    If b(a1(j24)) = 0 Then b(a1(j24)) = a1(j24): c(24) = a1(j24) Else GoTo 240
    a(24) = a1(j24)
    For j23 = 24 To 24                                          'a(23)
    If b(a1(j23)) = 0 Then b(a1(j23)) = a1(j23): c(23) = a1(j23) Else GoTo 230
    a(23) = a1(j23)
    For j22 = 2 To 2                                            'a(22)
    If b(a1(j22)) = 0 Then b(a1(j22)) = a1(j22): c(22) = a1(j22) Else GoTo 220
    a(22) = a1(j22)
    
    a(21) = s1 - a(22) - a(23) - a(24) - a(25): If a(21) < a1(m1) Or a(21) > a1(m2) Then GoTo 210
    If b1(a(21)) = 0 Then GoTo 210
    If b(a(21)) = 0 Then b(a(21)) = a(21): c(21) = a(21) Else GoTo 210
   
    For j20 = m1 To m2                                          'a(20)
    If b(a1(j20)) = 0 Then b(a1(j20)) = a1(j20): c(20) = a1(j20) Else GoTo 200
    a(20) = a1(j20)
    For j19 = m1 To m2                                          'a(19)
    If b(a1(j19)) = 0 Then b(a1(j19)) = a1(j19): c(19) = a1(j19) Else GoTo 190
    a(19) = a1(j19)
    For j18 = m1 To m2                                          'a(18)
    If b(a1(j18)) = 0 Then b(a1(j18)) = a1(j18): c(18) = a1(j18) Else GoTo 180
    a(18) = a1(j18)
    For j17 = m1 To m2                                          'a(17)
    If b(a1(j17)) = 0 Then b(a1(j17)) = a1(j17): c(17) = a1(j17) Else GoTo 170
    a(17) = a1(j17)
    
    a(16) = s1 - a(17) - a(18) - a(19) - a(20): If a(16) < a1(m1) Or a(16) > a1(m2) Then GoTo 160
    If b1(a(16)) = 0 Then GoTo 160
    If b(a(16)) = 0 Then b(a(16)) = a(16): c(16) = a(16) Else GoTo 160
   
    For j15 = m1 To m2                                          'a(15)
    If b(a1(j15)) = 0 Then b(a1(j15)) = a1(j15): c(15) = a1(j15) Else GoTo 150
    a(15) = a1(j15)
    For j14 = m1 To m2                                          'a(14)
    If b(a1(j14)) = 0 Then b(a1(j14)) = a1(j14): c(14) = a1(j14) Else GoTo 140
    a(14) = a1(j14)
    For j13 = m1 To m2                                          'a(13)
    If b(a1(j13)) = 0 Then b(a1(j13)) = a1(j13): c(13) = a1(j13) Else GoTo 130
    a(13) = a1(j13)
    For j12 = m1 To m2                                          'a(12)
    If b(a1(j12)) = 0 Then b(a1(j12)) = a1(j12): c(12) = a1(j12) Else GoTo 120
    a(12) = a1(j12)
    
    a(11) = s1 - a(12) - a(13) - a(14) - a(15): If a(11) < a1(m1) Or a(11) > a1(m2) Then GoTo 110
    If b1(a(11)) = 0 Then GoTo 110
    If b(a(11)) = 0 Then b(a(11)) = a(11): c(11) = a(11) Else GoTo 110
    
    For j10 = m1 To m2                                          'a(10)
    If b(a1(j10)) = 0 Then b(a1(j10)) = a1(j10): c(10) = a1(j10) Else GoTo 100
    a(10) = a1(j10)
    
    a(9) = a(10) - a(13) + a(15) - a(17) + a(20) - a(21) + a(25)
    If a(9) < a1(m1) Or a(9) > a1(m2) Then GoTo 90
    If b1(a(9)) = 0 Then GoTo 90
    If b(a(9)) = 0 Then b(a(9)) = a(9): c(9) = a(9) Else GoTo 90

    a(5) = s1 - a(9) - a(13) - a(17) - a(21)
    If a(5) < a1(m1) Or a(5) > a1(m2) Then GoTo 50
    If b1(a(5)) = 0 Then GoTo 50
    If b(a(5)) = 0 Then b(a(5)) = a(5): c(5) = a(5) Else GoTo 50

    a(4) = s1 - a(9) - a(14) - a(19) - a(24)
    If a(4) < a1(m1) Or a(4) > a1(m2) Then GoTo 40
    If b1(a(4)) = 0 Then GoTo 40
    If b(a(4)) = 0 Then b(a(4)) = a(4): c(4) = a(4) Else GoTo 40
    
    For j8 = m1 To m2                                          'a(8)
    If b(a1(j8)) = 0 Then b(a1(j8)) = a1(j8): c(8) = a1(j8) Else GoTo 80
    a(8) = a1(j8)
    
    a(7) = (s1 - a(8) - a(9) - a(10) + a(11) - a(13) + a(16) - a(19) + a(21) - a(25)) / 2
    j7 = CInt(a(7)): If j7 <> a(7) Then GoTo 70
    If a(7) < a1(m1) Or a(7) > a1(m2) Then GoTo 70:
    If b1(a(7)) = 0 Then GoTo 70
    
    a(6) = s1 - a(7) - a(8) - a(9) - a(10)
    If a(6) < a1(m1) Or a(6) > a1(m2) Then GoTo 70:
    If b1(a(6)) = 0 Then GoTo 70

    a(3) = s1 - a(8) - a(13) - a(18) - a(23)
    If a(3) < a1(m1) Or a(3) > a1(m2) Then GoTo 70:
    If b1(a(3)) = 0 Then GoTo 70

    a(2) = s1 - a(7) - a(12) - a(17) - a(22)
    If a(2) < a1(m1) Or a(2) > a1(m2) Then GoTo 70:
    If b1(a(2)) = 0 Then GoTo 70

    a(1) = s1 - a(2) - a(3) - a(4) - a(5)
    If a(1) < a1(m1) Or a(1) > a1(m2) Then GoTo 70:
    If b1(a(1)) = 0 Then GoTo 70

'        Exclude solutions with identical numbers

         GoSub 800: If fl1 = 0 Then GoTo 70

         n9 = n9 + 1
'        GoSub 650 'Print results (squares)
         GoSub 640 'Print results (selected numbers)

70  b(c(8)) = 0: c(8) = 0
80  Next j8
    
    b(c(4)) = 0: c(4) = 0
40  b(c(5)) = 0: c(5) = 0
50  b(c(9)) = 0: c(9) = 0
90  b(c(10)) = 0: c(10) = 0
100 Next j10

    b(c(11)) = 0: c(11) = 0
110 b(c(12)) = 0: c(12) = 0
120 Next j12
    b(c(13)) = 0: c(13) = 0
130 Next j13
    b(c(14)) = 0: c(14) = 0
140 Next j14
    b(c(15)) = 0: c(15) = 0
150 Next j15

    b(c(16)) = 0: c(16) = 0
160 b(c(17)) = 0: c(17) = 0
170 Next j17
    b(c(18)) = 0: c(18) = 0
180 Next j18
    b(c(19)) = 0: c(19) = 0
190 Next j19
    b(c(20)) = 0: c(20) = 0
200 Next j20

    b(c(21)) = 0: c(21) = 0
210 b(c(22)) = 0: c(22) = 0
220 Next j22
    b(c(23)) = 0: c(23) = 0
230 Next j23
    b(c(24)) = 0: c(24) = 0
240 Next j24
    b(c(25)) = 0: c(25) = 0
250 Next j25
    t2 = Timer
    
    t10 = Str(t2 - t1) + " sec., " + Str(n9) + " Solutions for sum" + Str(s1)
    y = MsgBox(t10, 0, "Routine MgcSqr5a4")

End

'   Print results (selected numbers)

640 Cells(n9, 25).Select
    GoSub 700
    For i1 = 1 To 25
        Cells(n9, i1).Value = a25(i1)
    Next i1
    
    Return

'   Print results (squares, reflected)

650 GoSub 700
    n2 = n2 + 1
    If n2 = 5 Then
        n2 = 1: k1 = k1 + 6: k2 = 1
    Else
        If n9 > 1 Then k2 = k2 + 6
    End If

    Cells(k1, k2 + 1).Select
    Cells(k1, k2 + 1).Font.Color = -4165632
    Cells(k1, k2 + 1).Value = n9
    
    i3 = 0
    For i1 = 1 To 5
        For i2 = 1 To 5
            i3 = i3 + 1
            Cells(k1 + i1, k2 + i2).Value = a25(i3)
        Next i2
    Next i1

    Return

'   Reflect Square (85 in left corner)
    
700 i2 = -4
    For i1 = 1 To 5
        i2 = i2 + 5
        a25(i2) = a(i2 + 4): a25(i2 + 4) = a(i2)
        a25(i2 + 1) = a(i2 + 3): a25(i2 + 3) = a(i2 + 1)
        a25(i2 + 2) = a(i2 + 2)
    Next i1

    Return

'   Exclude solutions with identical numbers

800 fl1 = 1
    For j1 = 1 To 25
       a2 = a(j1)
       For j2 = (1 + j1) To 25
           If a2 = a(j2) Then fl1 = 0: GoTo 850
       Next j2
    Next j1
850 Return

End Sub

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