分而治之方法還可以用于實現另一種完全不同的排序方法,這種排序法稱為快速排序(quick sort)。在這種方法中, n 個元素被分成三段(組):左段l e f t,右段r i g h t和中段m i d d l e。中段僅包含一個元素。左段中各元素都小于等于中段元素,右段中各元素都大于等于中段元素。因此l e f t和r i g h t中的元素可以獨立排序,并且不必對l e f t和r i g h t的排序結果進行合并。m i d d l e中的元素被稱為支點( p i v o t )。圖1 4 - 9中給出了快速排序的偽代碼
上傳時間: 2015-04-27
上傳用戶:kristycreasy
A Java virtual machine instruction consists of an opcode specifying the operation to be performed, followed by zero or more operands embodying values to be operated upon. This chapter gives details about the format of each Java virtual machine instruction and the operation it performs.
標簽: instruction specifying operation performed
上傳時間: 2014-01-11
上傳用戶:yiwen213
A Java virtual machine instruction consists of an opcode specifying the operation to be performed, followed by zero or more operands embodying values to be operated upon. This chapter gives details about the format of each Java virtual machine instruction and the operation it performs.
標簽: instruction specifying operation performed
上傳時間: 2015-05-02
上傳用戶:daoxiang126
A Java virtual machine instruction consists of an opcode specifying the operation to be performed, followed by zero or more operands embodying values to be operated upon. This chapter gives details about the format of each Java virtual machine instruction and the operation it performs.
標簽: instruction specifying operation performed
上傳時間: 2015-05-02
上傳用戶:shawvi
A Java virtual machine instruction consists of an opcode specifying the operation to be performed, followed by zero or more operands embodying values to be operated upon. This chapter gives details about the format of each Java virtual machine instruction and the operation it performs.
標簽: instruction specifying operation performed
上傳時間: 2013-12-12
上傳用戶:朗朗乾坤
設計說明:1。數據結構和表示:程序用1、2、3、4分別表示將右、上、左、下的數字塊移動到空格之中。采用典型的樹+鏈表結構,每種局面產生一個BoardState類。出于避免走法順序列表被過多復制的考慮,在樹結構中保存局面的繼承關系。每種新的局面產生后,引用估值函數產生f的值,再根據大小將其插入鏈表之中,以便實現“優先展開f值小的節點”。Solve()函數在成功解決問題之后保存一個走法序列供輸出并返回零,而失敗則返回失敗處的節點層數。(具體的判斷方法見后文)
上傳時間: 2015-05-02
上傳用戶:xieguodong1234
本程序用資源分配網(Resource_Allocation Network,簡稱RAN)實現了Hermit多項式在線學習問題。訓練樣本產生方式如下,樣本數400,每個樣本輸入Xi在區間[-4,4]內隨機產生(均勻分布),相關樣本輸出為F(Xi) = 1.1(1-Xi + Xi2)exp(-Xi2/2),測試樣本輸入在[-4,+4]內以0.04為間隔等距產生,共201個樣本。訓練結束后的隱節點為:11個,訓練結束后的平均誤差可達:0.03
標簽: Resource_Allocation Network Hermit RAN
上傳時間: 2014-01-14
上傳用戶:pompey
The IEEE Multipath Channel block simulates an indoor UWB channel as described in "A Channel Model for Ultrawideband Indoor Communications" by J.R. Foerster, M. Pendergrass and A.F. Molisch, November 2003, and attempts to incorporate the processes used in their MATLAB scripts.
標簽: Channel Multipath simulates described
上傳時間: 2015-05-08
上傳用戶:水中浮云
用四階(定步長)龍格--庫塔法求解初值問題,其中一階微分方程未y =f(x,y)
標簽: 初值
上傳時間: 2013-12-08
上傳用戶:zhengjian
用改進的歐拉方法求解初值問題,其中一階微分方程未y =f(x,y)
標簽: 初值
上傳時間: 2013-12-17
上傳用戶:fnhhs