[.NET] 費氏數列(跑得很慢)
小弟正在自學asp.net2.0 ，用vb.net開發
做到一題，要我把費氏數列從1顯示到1836311903
以下是程式碼
-------------------------------------------------------------------------------
Partial Class _Default
Inherits System.Web.UI.Page
-------------------------------------------------------------------------------
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim i As Integer
Dim j As Integer = 10000000
For i = 0 To j
Response.Write(fib(i) & "、")
If fib(i) >= 1836311903 Then
Exit For
End If
Next
End Sub
-------------------------------------------------------------------------------
Function fib(ByVal x As Integer)
If x = 0 Or x = 1 Then
Return 1
Else
Return fib(x - 1) + fib(x - 2)
End If
End Function
End Class
如果是輸出到小一點的數還可以，但這題要到1836311903
我放了快一小時都還沒跑出答案
請問有比較快的解法嗎？
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