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。 .a@>1XO
插入排序: @lO(QpdG
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package org.rut.util.algorithm.support; +k?0C?/T;
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import org.rut.util.algorithm.SortUtil; kv8
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/** jI%g!
* @author treeroot Q($.s=&l;
* @since 2006-2-2 Qzh`x-S
* @version 1.0 ;ND)h pD+
*/ w(6(Fze
public class InsertSort implements SortUtil.Sort{ 0hCrEM!8
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/* (non-Javadoc)
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Z\1wEGP7{
*/ um5n3=K
public void sort(int[] data) { h ycdk1SN
int temp; QPZ|C{Ce
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Vmb `%k20'
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} naaww
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冒泡排序: %=G*{mK
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package org.rut.util.algorithm.support; OtsW>L@ O(
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import org.rut.util.algorithm.SortUtil; dU<qFxW
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/** 9|K3xH
* @author treeroot (Z)F6sZ`8
* @since 2006-2-2 EW Z?q$
* @version 1.0 H6Dw5vG"l
*/ ]N#%exBVo
public class BubbleSort implements SortUtil.Sort{ 4xl}kmvv
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/* (non-Javadoc) q"OJF'>w5
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }iBFo\vU
*/ #CcC& I
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public void sort(int[] data) { w1q`
int temp; b$,~S\\c
for(int i=0;i for(int j=data.length-1;j>i;j--){ >`S $(f
if(data[j] SortUtil.swap(data,j,j-1); ~L55l2u7
} q2U8]V U)
} MzP
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选择排序: V
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package org.rut.util.algorithm.support; d:"#_
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import org.rut.util.algorithm.SortUtil; VAL]\@Q}
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/** W_\~CntyZ
* @author treeroot M7x*LiKc2
* @since 2006-2-2 tUXly|k
* @version 1.0 ZaKT~f%%z
*/ NAnccB D!{
public class SelectionSort implements SortUtil.Sort { %c`P`~sp
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/* fZ7Ap3dmP
* (non-Javadoc) #UYrSM@u
* i7#PYt
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q}qw`L1
*/ O% }EpIP_
public void sort(int[] data) { K|Kc.
int temp; M0$wTmXM
for (int i = 0; i < data.length; i++) { "IE*MmsEz
int lowIndex = i; [i 7^a/e
for (int j = data.length - 1; j > i; j--) { {%! >0@7
if (data[j] < data[lowIndex]) { $?FA7=_
lowIndex = j; &'{?Y;A
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SortUtil.swap(data,i,lowIndex); iI
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Shell排序: zc4l{+3
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package org.rut.util.algorithm.support; 3~5%6`
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import org.rut.util.algorithm.SortUtil; I4RUXi 5
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/** M tD{/.D>
* @author treeroot Ak=|wY{
* @since 2006-2-2 Q}(D^rGP3
* @version 1.0 ;"T,3JQPn6
*/ 7!kbe2/]'
public class ShellSort implements SortUtil.Sort{ <JkmJ/X
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/* (non-Javadoc) 'qt+.vd
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) sQ05wAv
*/ A!bH0=<I
public void sort(int[] data) { &E +2
for(int i=data.length/2;i>2;i/=2){ pGHn
for(int j=0;j insertSort(data,j,i); L32 [IL|
} 6f^q >YP
} [:Y`^iR.
insertSort(data,0,1); </@3}rfUPg
} S1&Df%Ra
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/** Rk(2|I
* @param data
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* @param j ?$Tp|<tx#
* @param i 0n('F
*/ _4lhwKYU
private void insertSort(int[] data, int start, int inc) { {DVu* %|
int temp; H7&bUt/
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc);
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} ^\Gukkmh}
} (w/)u
} :0o,pndU
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} sY*iRq
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快速排序: -!JnyD
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package org.rut.util.algorithm.support; gPYF2m
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import org.rut.util.algorithm.SortUtil; XI8rU)q
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/** rV6SN.
* @author treeroot n)6mfoe
* @since 2006-2-2 W^sH|2g
* @version 1.0 ZlEH3-Zv
*/ KDUa0$"
public class QuickSort implements SortUtil.Sort{ 4qe!+!#$
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/* (non-Javadoc) stcbM
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) d|Q_Z@;JF
*/ 530Z>q
public void sort(int[] data) { H}}g\|r&
quickSort(data,0,data.length-1); %"{jNC?
} [t.x cO
private void quickSort(int[] data,int i,int j){ ?Gr2@,jlD
int pivotIndex=(i+j)/2; 6Q}WX[| tQ
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SortUtil.swap(data,pivotIndex,j); 6OLp x)fG
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int k=partition(data,i-1,j,data[j]); NJ ];Ck
SortUtil.swap(data,k,j); f.X<Mo
if((k-i)>1) quickSort(data,i,k-1); e/*T,ZJ
if((j-k)>1) quickSort(data,k+1,j); 8 "5^mj
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} C_q@ixF{
/** B4d\4S_r%
* @param data NL7CeHs5
* @param i _Vl22'wl
* @param j AQR/nWwx
* @return "oc&uj
*/ QO|roE
private int partition(int[] data, int l, int r,int pivot) { lf?dTPrD
do{ [l%6wIP&{
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); //W7$DYEG
SortUtil.swap(data,l,r); 1GA$nFBVC
} F9\T<
while(l SortUtil.swap(data,l,r); m.0:R
return l; ,rZp(moj
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改进后的快速排序: FvTc{"w /
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package org.rut.util.algorithm.support; x.ZW%P1
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import org.rut.util.algorithm.SortUtil; +#Q\;;FNP
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/** /6@iRswa
* @author treeroot D Xjw" ^x
* @since 2006-2-2 |2'u@<(Z/
* @version 1.0 q` Z_Bw
*/ ZQV,gIFys
public class ImprovedQuickSort implements SortUtil.Sort { 'Bc{N^
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private static int MAX_STACK_SIZE=4096; P9/Bc^5'
private static int THRESHOLD=10; WVa#nU^
/* (non-Javadoc) |?=a84n1l
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _RI!Z
*/ 07FS|>DM'Z
public void sort(int[] data) { 0! 6n
int[] stack=new int[MAX_STACK_SIZE]; aUVJ\;V
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int top=-1; 7%x
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int pivot; Dx1 w I
int pivotIndex,l,r; F
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stack[++top]=0; npD`9ff
stack[++top]=data.length-1; &R7N^*He
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