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(加试题)入围“十佳歌手”的10位学生的编号依次为:47,36,35,31,28,23,17,8,3,1,主持人通过对分查找最终确定35号为首位出场学生,则主持人查找过程中依次被访问的编号是(  )
A.47,36,35B.23,35C.28,35D.28,36,35
上一题 下一题 0.99难度 选择题 更新时间:2019-05-06 12:23:47

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同类题1

(加试题)某密码的破译步骤如下:
(1)找出文章(以“.”结束)中所有用英文表示的数字(均为小写,数字范围1≤n≤20),单词与数字对应如下:

(2)将这些数字平方后除以100取余,得到两位数如00,04,21,96。
(3)把这些两位数按升序排成一行,组成一个最小的新数,如果新数开头为0,就去除。
(4)步骤(3)找出的最小数即为密码。
小明按照上述方法,设计了一个解密的VB程序,功能如下:单击“解密”按钮Commandl,程序依次将文本框Textl中以空格分隔的每个英文单词取出,若单词属于数字单词,则按解密步骤进行处理,最后在文本框Text2中输出解密结果。
程序运行效果如图所示,请回答下列问题:

(1)若文章内容为“tom bought two apples and five oranges, which cost ten dollars altogether.”,则破译后的密码应为_____________。
(2)请在划线处填入合适的代码。
Dim a(1 To 20) As String
Private Sub Form_Load()
a(1) = "one": a(2) = "two" 
'……将所有数字单词按顺序存入数组a中,代码略
End Sub
Private Sub Command1_Click()
Dim s As String, tmp As String
Dim c as Integer,i As Integer, j As Integer, k As Integer, t As String, ch As As String,code As Long
Dim b(1 To 100) As String   'b数组存放数字单词处理后得到的两位数
s = Text1.Text
c = 0: i = 1: flag = True:t = ""
Do While i <= Len(s)
ch = Mid(s, i, 1)
If ch >= "a" And ch <= "z" Then
t = t + ch
flag = False
ElseIf flag = False Then
For j = 1 To 20
If t = a(j) Then
c = c + 1
b(c) =_________________
End If
Next j
t = ""
flag = True
End If
i = i + 1
Loop
’将b数组中的两位数按数值大小进行升序排序,代码略
For i = 1 To c
t = Val(b(i))
_______________________
Next i
Text2.Text = Str(code)
End Sub
Function decode(num As Integer) As String
Dim mo As Integer
mo = num * num Mod 100
If mo = 0 Then
decode = "00"
ElseIf ___________________  Then
decode = "0" + Trim(Str(mo))
Else
decode = Trim(Str(mo))  'Trim为去除字符串两端空格的函数
End If
End Function

同类题2

   (加试题)某校秋季运动会共n名运动员参赛,高老师编写了一个运动会号码牌查询软件,输入号码牌就能查询该号码牌所属的班级和运动员姓名。数组hm、bj、xm分别保存了本次运动会所有运动员的号码牌、所在班级和姓名的信息。第i个选手的号码牌保存在a(i)中,对应的班级和姓名保存在bj(i)和xm (i)中。

运动会号码牌查询程序界面如第16题图所示,在文本框Text1中输入号码牌,单击“查询”按钮(Command1),电脑就开始查找该号码牌的信息,如果找到对应的信息,就显示该运动员所属班级和姓名,如果没有找到,则显示“没有该号码牌的信息”。


相应程序如下,在程序①和②划线处填入适当的语句和代码,把程序补充完整。
(1)学生运动会数据存入的数据库文件是_________________;
(2)在程序画线①处应填入________________________;
(3)在程序画线②处应填入________________________。
Dim n As Integer  ‘运动员人数
Dim hm(1000) As Integer, bj(1000) As String, xm(1000) As String
Private Sub Form_Load()
Dim conn As New ADODB.Connection
Dim rs As New ADODB.Recordset
conn.ConnectionString = "Provider = Microsoft.Jet.OLEDB.4.0;DATA Source=" & App.Path & "\games.accdb"
conn.Open
strSQL = "SELECT * FROM Student"
Set rs.ActiveConnection = conn
rs.Open strSQL
n = 0
Do While Not rs.EOF '到记录集最后一条记录后退出循环
n = n + 1 '计数
hm(n) = rs.Fields("号码")
bj(n) = rs.Fields("班级")
xm(n) = rs.Fields("姓名")
rs.MoveNext     '移动到下一条记录
Loop
‘用冒泡排序法按a数组(号码牌)升序排列,显示在列表框List1中,代码略。
End Sub
Private Sub Command1_Click()   
Dim w As Integer
w = Val(Text1.Text)
pos =
If pos > 0 Then
Text2.Text = bj(pos)
Text3.Text = xm(pos)
Else
Text2.Text = "找不到"
End If
End Sub
Function Search(Key As Integer) As Integer
Dim i As Integer, j As Integer,
i = 1
j = n
Do While i <= j
found = Fix((i + j) / 2)
If Key = a(found) Then
Search = found
Exit Function
ElseIf      Then
j = found - 1
Else
i = found + 1
End If
Loop
Search = 0
End Function

同类题5

(加试题)编写一个成绩查询程序,输入要查找的分数,输出该分数的名次及同分人数,其算法是:用数组a存放不同的分值,数组m存储相同分数的人数,数组mc存储不同分数的名次。例如,数据库中有一组成绩(已按降序排列):98,95,95,92,90,90,87,按该算法,各数组值如下表所示:
i
1
2
3
4
5
a
98
95
92
90
87
m
1
2
1
2
1
mc
1
2
4
5
7
 
程序界面如下图所示,在文本框Text1中输入查询成绩,点击“查找”按钮,若找到,则输出该分数的名次和同分数的人数,若找不到,则输出“查无此分”。

程序代码如下,请在划线处填入合适的代码。
Dim n As Integer
Dim a(l To 1000) As Integer ’存放不同的分数值
Dim m(0 To 1000) As Integer ’存放相同分数的人数
Dim mc (0 To 1000) As Integer ’存放此分数的名次
Private Sub Form_Load()
Dim conn As New ADODB. Connection
Dim rs As New ADODB. Recordset
Dim tmp As Integer
Dim s As Integer
tmp = -1: n = 0
conn. Connectionstring = 〃provider=Microsoft. AC
A.OLEDB. 12. 0; data source=〃 & App. Path & 〃\mydb. accdb〃
conn. Open
Set rs. ActiveConnection = conn
rs.Open "Select * from score"
mc(0) = 1: m(0) = 0

Do While Not rs. EOF

s = rs. Fields (〃成绩〃)
If s = tmp Then ’当前读入分数与上一个分数相同
m(n) = __________
Else
n = n + 1
a(n) = s
m(n) = 1
mc(n) = ___________ 
End If
_____________
rs. MoveNext

Loop

End Sub
Private Sub Command1_Click0
Dim key As Integer, i As Integer, j As Integer, mid As Integer
key = Val (Text1.Text)
i = 1: j = n
mid = (i + j) \ 2
Do While i <= j And ____________ 

mid = (i + j) \ 2

If a(mid) < key Then

j = mid – 1

Else

i = mid + 1

End If

Loop
If a(mid) = key Then

Label2. Caption = 〃名次: 〃+ Str(mc (mid)) + 〃同分人数: 〃+ Str(m(mid))

Else

Label2. Caption = 〃查无此分〃

End If
End Sub