Private Sub Worksheet_Change(ByVal Target As Range)
Dim P As Range, nlig&, ncol%, decal&, a%(), b%(), d As Object, i&, lig, x$, j%
Set P = [deb].CurrentRegion
nlig = P.Rows.Count
If Intersect(Target, P.Resize(nlig + 1)) Is Nothing Then Exit Sub
ncol = P.Columns.Count
decal = P.Row - 1
ReDim a(1 To nlig + decal, 1 To 1): ReDim b(1 To nlig + decal, 1 To 1)
Set d = CreateObject("Scripting.Dictionary")
For i = 1 To nlig
lig = P.Rows(i)
tri lig, 1, ncol
x = ""
For j = 1 To ncol
x = x & " " & lig(1, j)
Next
If d.exists(x) Then
a(i + decal, 1) = 1
b(d(x), 1) = 1
Else: d(x) = i + decal: End If
Next
ThisWorkbook.Names.Add "PremiereLigneDoublon", b 'nom défini
ThisWorkbook.Names.Add "AutreLigneDoublon", a 'nom défini
End Sub
Sub tri(a, gauc, droi) ' Quick sort
Dim ref, g, d, temp
ref = a(1, (gauc + droi) \ 2)
g = gauc: d = droi
Do
Do While a(1, g) < ref: g = g + 1: Loop
Do While ref < a(1, d): d = d - 1: Loop
If g <= d Then
temp = a(1, g): a(1, g) = a(1, d): a(1, d) = temp
g = g + 1: d = d - 1
End If
Loop While g <= d
If g < droi Then Call tri(a, g, droi)
If gauc < d Then Call tri(a, gauc, d)
End Sub