```
Option Explicit
Sub MakeTeams()
Dim Players(200, 3), TeamSize(10) As Integer, TeamRating(10) As Double
Dim i As Integer, r As Integer, j As Integer, c As Integer, ctr As Integer
Dim Numplayers As Integer, NumTeams As Integer, trials As Integer
Dim t As Integer, tc As Integer, MaxRating As Double, MinRating As Double
Dim MyText As String
Application.ScreenUpdating = False
Sheets("Sheet1").Range("I2:AK16").Value = ""
' How many teams?
NumTeams = Range("D2").Value
If NumTeams > 10 Or NumTeams < 2 Or Int(NumTeams) <> NumTeams Then
MsgBox "The number of teams must be an integer from 2-10."
Exit Sub
End If
' Read all the players and ratings
r = 2
Erase Players, TeamSize, TeamRating
While Cells(r, "A") <> ""
If r > 201 Then
MsgBox "The number of players must be under 200."
Exit Sub
End If
Players(r - 1, 1) = Cells(r, "A")
Players(r - 1, 2) = Cells(r, "B")
r = r + 1
Wend
Numplayers = r - 2
' Figure out the team sizes
For r = 1 To NumTeams
TeamSize(r) = Int(Numplayers / NumTeams) + IIf(r <= (Numplayers Mod NumTeams), 1, 0)
Next r
' Make random teams
trials = 0
While trials < 100
Call Shuffle(Players, Numplayers)
' Figure out the team ratings
t = 1
tc = 1
Erase TeamRating
MaxRating = -1
MinRating = 11
For i = 1 To Numplayers
TeamRating(t) = TeamRating(t) + Players(i, 2)
tc = tc + 1
If tc > TeamSize(t) Then
TeamRating(t) = TeamRating(t) / TeamSize(t)
If TeamRating(t) > MaxRating Then MaxRating = TeamRating(t)
If TeamRating(t) < MinRating Then MinRating = TeamRating(t)
t = t + 1
tc = 1
End If
Next i
' Max team rating - min team rating within the limit?
If MaxRating - MinRating <= Cells(2, "F") Then GoTo PrintTeams
' Nope, try again
trials = trials + 1
Wend
MyText = "Unable to find a valid set of teams in 100 tries." & Chr(10) & Chr(10)
MyText = MyText & "You may try again using a higher MaxRatingDiff or" & Chr(10)
MyText = MyText & "add more players to list or decrease the NumTeams"
MsgBox MyText
Exit Sub
' Print the teams
PrintTeams:
Range("J1:AP20").ClearContents
ctr = 1
For i = 1 To NumTeams
c = i * 3 + 6
Cells(1, c) = "Team " & Chr(64 + i)
For j = 1 To TeamSize(i)
Cells(j + 1, c) = Players(ctr, 1)
Cells(j + 1, c + 1) = Players(ctr, 2)
ctr = ctr + 1
Next j
Cells(TeamSize(1) + 3, c + 1) = TeamRating(i)
Next i
Application.ScreenUpdating = True
End Sub
' This team will randomly shuffle the players
' (It's really a bad sort, but with under 100 players, it should be good enough.)
Sub Shuffle(ByRef Players, ByVal Numplayers)
Dim i As Integer
Dim j As Integer
Dim a, b, c
' Assign a random number to each player
For i = 1 To Numplayers
Players(i, 3) = Rnd()
Next i
' Now sort by the random numbers
For i = 1 To Numplayers
For j = 1 To Numplayers
If Players(i, 3) > Players(j, 3) Then
a = Players(i, 1)
b = Players(i, 2)
c = Players(i, 3)
Players(i, 1) = Players(j, 1)
Players(i, 2) = Players(j, 2)
Players(i, 3) = Players(j, 3)
Players(j, 1) = a
Players(j, 2) = b
Players(j, 3) = c
End If
Next j
Next i
End Sub
```