认为数学好的或懂编程的请进!!!
来源:百度知道 编辑:UC知道 时间:2024/05/31 04:32:42
我算过一下午,觉得这三个分数没有什么规律性,可能只能编一个小程序来测试。可惜我不是很懂。
有大虾愿意提示下吗?
thanks!!!
我也是编程算出来的,只有一种答案
就是:5/34 + 7/68 + 9/12 = 1
用VB编的,很笨的方法,但是很快,不到1秒出答案
Dim A1 As Integer, A2 As Integer, A3 As Integer, A4 As Integer, A5 As Integer
Dim A6 As Integer, A7 As Integer, A8 As Integer, A9 As Integer
Dim I As Long
Dim X(1 To 9) As Boolean
Dim S As String
Private Sub Form_Load()
For A1 = 1 To 9
For I = 1 To 9
X(I) = False
Next
X(A1) = True
For A2 = 1 To 9
If Not X(A2) Then
X(A2) = True
For A3 = 1 To 9
If Not X(A3) Then
X(A3) = True
For A4 = 1 To 9
If Not X(A4) Then
X(A4) = True
For A5 = 1 To 9
If Not X(A5) Then
X(A5) = True
For A6 = 1 To 9
If Not X(A6) Then
X(A6) = True
For A7 = 1 To 9
If Not X(A7) Then
X(A7) = True
For A8 = 1 To 9
If Not X(A8) Then
X(A8) = True
For A9 = 1 To 9
If Not X(A9) Then
If A1 / (A2 * 10 +