活动课上，n个学生要两两组队进行拔河比赛，要求每个小组总体重不超过120kg，小林想知道最多可以组成多少个队伍，并希望得到可行的组队方案。于是设计了如下界面的程序，在文本框Text1中输入n 个学生的体重(数字之间用逗号隔开)，单击“队伍”按钮Command1后在标签Label1上显示最多可组队数量，同时在列表框List1输出方案。
实现上述功能程序如下，在横线处填入合适的代码。
Dim n As Integer
Dim a(1 To 50) As Integer
Sub makedata(s As String) ‘该过程实现将输入的体重分别存入数组a中
Dim in As Long, x As Long, c As String, i As Integer
m=Len (s) : n=0
For i=1 To m
c=Mid(s, i, 1)
If c >=“0” And c <=“9” Then
{#blank#}1{#/blank#}
x=x+Asc(c)-Asc(“0”)
Else
If x > 0 Then n=n+1: a(n)=x
x=0
End If
Next i
n=n+1: a(n)=x
End Sub
Private Sub Command1_Click()
Dim s As String, i As Integer, j As Integer, t As Integer
Dim cnt As Integer, st As Integer, ed As Integer
s=Text1.Text Call makedata(s) ‘调用过程
For i=1 To n-1 ‘实现降序排序
For j=n To i+1 Step-1
If{#blank#}2{#/blank#}Then
a(j)=a(j)+a(j-1) : a(j-1)=a(j)-a(j-1) :{#blank#}3{#/blank#}
End If
Next j
Next i
‘下列程序段实现计算最多可组队伍
cnt=0: st=1: ed=n
Do While st < ed
If a(st)+a(ecl) <=120 Then
List1. AddItem Str(a(st))+“和”+Str(a(ed))+“组队”
cnt=cnt+1
st=st+1
{#blank#}4{#/blank#}
Else
st=st+1
End If
Loop
Label2. Caption=“最多可以组”+Str (cnt)+“组队伍”
End Sub
‘改错 
