用Java语言实现的各种排序,包括插入排序、冒泡排序、选择排序、Shell排序、快速排序、归并排序、堆排序、SortUtil等。 <5Mrp"C[i
插入排序: 77:'I
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package org.rut.util.algorithm.support; Ws49ImCB
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import org.rut.util.algorithm.SortUtil; e4qj .b
/** XSB8z
* @author treeroot Z-|li}lDr
* @since 2006-2-2 dA#{Cn;
* @version 1.0 [l[{6ZXt
*/ >v0 :qN7|
public class InsertSort implements SortUtil.Sort{ (buw^
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/* (non-Javadoc) sS,#0Qt.
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) GzdgL"M[
*/ 4-:7.I(hq
public void sort(int[] data) { C;sgK
int temp; A'"-m)1P
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); P&t;WPZ
} GFR!n1Hv
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} If}lJ6jZ
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冒泡排序: =FBIrw{w
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package org.rut.util.algorithm.support; qB JRS'6'9
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import org.rut.util.algorithm.SortUtil; v'nHFC+p
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/** org*z!;.
* @author treeroot OKQLv+q5K)
* @since 2006-2-2 !s-/0ugZ
* @version 1.0 `)tK^[,<W
*/ t&"5dM\
public class BubbleSort implements SortUtil.Sort{ Jf+7"![|
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/* (non-Javadoc) 4Vx+[8W
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) q 22/_nSC
*/ >i8~dEbB
public void sort(int[] data) { Ve14rn
int temp; l @A"U)A(
for(int i=0;i for(int j=data.length-1;j>i;j--){ 4!2SS
if(data[j] SortUtil.swap(data,j,j-1); KF$ %q((
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} p}8ratmN
} FR' b`Xv:
} \UtS>4w\
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选择排序: /\~W$.c
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package org.rut.util.algorithm.support; M+UMR+K
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import org.rut.util.algorithm.SortUtil; 0|Q.U
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/** Vw?P.4
* @author treeroot c'lIWuL)
* @since 2006-2-2 vz,LF=s2
* @version 1.0 sWW\bK0B4
*/ auA.6DQ
public class SelectionSort implements SortUtil.Sort { G 4"lZM
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/* (lb`#TTGx
* (non-Javadoc) T`mEO\f
* f<=^ 4a
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) L)G">T;
*/ wL'C1Vr
public void sort(int[] data) { *lY+Yy(
int temp; I~'gK8<e7
for (int i = 0; i < data.length; i++) { j%GbgJ
int lowIndex = i; C[W5d~@;E
for (int j = data.length - 1; j > i; j--) { ]kH}lr
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if (data[j] < data[lowIndex]) { (>r|j4$
lowIndex = j; S
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} }9FD/
} m^c%]5$
SortUtil.swap(data,i,lowIndex); }*ODM6
} Z#@6#S`
} :3 PG f
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} u-1@~Z
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Shell排序: w=gQ3j#s
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package org.rut.util.algorithm.support; =yo=q)W
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import org.rut.util.algorithm.SortUtil; sV&`0N
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/** =>.DD<g"
* @author treeroot x1:vUHwC
* @since 2006-2-2 `GP3D~
* @version 1.0 F1/6&u9I
*/ B_b8r7Vn`
public class ShellSort implements SortUtil.Sort{ i:R!T,
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/* (non-Javadoc) - =yTAx
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Bac?'ypm
*/ -wBnwn-
public void sort(int[] data) { V_ {vZ/0e
for(int i=data.length/2;i>2;i/=2){ ^CO#QnB @
for(int j=0;j insertSort(data,j,i); E#8J+7
} rkbl/py
}
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insertSort(data,0,1); ~igRg~k:/
} M3)v-"
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/** pFS
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* @param data Q1K"%
* @param j W&WB@)ie
* @param i XlE$.
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private void insertSort(int[] data, int start, int inc) { q`h7H][(A
int temp; xAFek;GY?
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 4p*?7g_WVH
} a"MTQFm'
} iM4mkCdOO
} |>M-+@gj
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} YL;SxLY
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快速排序: Yjpb+}
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package org.rut.util.algorithm.support; ?<-wHj)
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import org.rut.util.algorithm.SortUtil; cq-e
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/** \CP*i_:"
* @author treeroot -Mit$mFn
* @since 2006-2-2 =]8f"wAh*
* @version 1.0 hB?U5J
*/ [^cs~
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public class QuickSort implements SortUtil.Sort{ -Pv P
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/* (non-Javadoc) {LjK_J'
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) O@G<B8U,K
*/ $Vd?K@W[h
public void sort(int[] data) { JDIz28 Ww
quickSort(data,0,data.length-1); { mK pD
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private void quickSort(int[] data,int i,int j){ M80}3mgP~
int pivotIndex=(i+j)/2; qpH j4
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SortUtil.swap(data,pivotIndex,j); BBaHMsr
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int k=partition(data,i-1,j,data[j]); DN2hv2
SortUtil.swap(data,k,j); (gs`=H*d;
if((k-i)>1) quickSort(data,i,k-1); g)2m$#T&s
if((j-k)>1) quickSort(data,k+1,j); o{s4.LKK
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} ~hxeD" w
/** NZC<m$')
* @param data 1q;I7_{ 2
* @param i 1\"BvFE*E~
* @param j WV9[DFU
* @return N^nDWK
*/ J
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private int partition(int[] data, int l, int r,int pivot) { ]~4}(\u
do{ EbHUGCMO
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); LIm$Wl1U
SortUtil.swap(data,l,r); {EiG23!qV
} AmUe0CQ:k'
while(l SortUtil.swap(data,l,r); L%=BCmMx
return l; IJL^dXCu
} D*<8e?F
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} 2/a04qA#
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改进后的快速排序: o
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package org.rut.util.algorithm.support; ^@l5u=
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import org.rut.util.algorithm.SortUtil; exa}dh/uC
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/** r&LCoe'\{i
* @author treeroot qrORP3D@
* @since 2006-2-2 -v/?>
* @version 1.0 -h.3M0
*/ k_.j%
public class ImprovedQuickSort implements SortUtil.Sort { -&HoR!af
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private static int MAX_STACK_SIZE=4096; MXu+I,y*
private static int THRESHOLD=10; 0Zp<=\!;
/* (non-Javadoc) +eH=;8
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) LT
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*/ Y
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public void sort(int[] data) { oGU.U9~!
int[] stack=new int[MAX_STACK_SIZE]; !*$'fn'bAA
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int top=-1; _^,[wD
int pivot; _s=Pk[e
int pivotIndex,l,r; & t @
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stack[++top]=0; YC+ZVp"v
stack[++top]=data.length-1; Vo58Nz:%
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