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。 ?TMrnR/d
插入排序: L4!T
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package org.rut.util.algorithm.support; -_T@kg[0zB
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import org.rut.util.algorithm.SortUtil; VWT\wAL
/** ((
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* @author treeroot XAb-K?)
* @since 2006-2-2 -+Gd <U$
* @version 1.0 /2Qgg`^)
*/ u Tvck6
public class InsertSort implements SortUtil.Sort{ dPb@[k
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/* (non-Javadoc) v~KgCLo
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q}|QgN
*/ IgNL1KRD
public void sort(int[] data) { dFzlcKFFD
int temp; M&ec%<lM
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); A[Pz&\@
} w<jlE8u
} +^<-;/FZue
} Av,E|C
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} +&qj`hA-b
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冒泡排序: ES9|eo6
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package org.rut.util.algorithm.support; 'Ej&zh
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import org.rut.util.algorithm.SortUtil; G21cJi*
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/** c5AEn -Q
* @author treeroot a[A*9%a
* @since 2006-2-2 }1?
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* @version 1.0 `>N_A!pr`
*/ 1PnWgu
public class BubbleSort implements SortUtil.Sort{ PHv0^l]B
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/* (non-Javadoc) 6y}|IhX?z
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 7<7
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*/ /.<2I
public void sort(int[] data) { ,/6 aA7(
int temp; UCL aCt -
for(int i=0;i for(int j=data.length-1;j>i;j--){ 59Lmv
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if(data[j] SortUtil.swap(data,j,j-1); cgF?[Z+x
} 3|9
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} b@m\ca
} KL4vr|i,
} ?R8wm E[w
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} NZ=`iA8)X
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选择排序: 0VBbSn}Z<
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package org.rut.util.algorithm.support; ,+hH|$
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import org.rut.util.algorithm.SortUtil; "*N=aHsj
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/** T~JE.Y3B3
* @author treeroot WC
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* @since 2006-2-2 \g<=n&S?
* @version 1.0 W*/0[|n*
*/ L2
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public class SelectionSort implements SortUtil.Sort { @ZTsl ?
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/* 6|AD]/t^K
* (non-Javadoc) qt{{q
* RJO40&Z<Z
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) v cZg3:j
*/ :UDT!
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public void sort(int[] data) { B`i5lD
int temp; q#!]5
for (int i = 0; i < data.length; i++) { JOvRUDZ
int lowIndex = i; @$ggPrs
for (int j = data.length - 1; j > i; j--) { AHl1{*
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if (data[j] < data[lowIndex]) { [d}AlG!
lowIndex = j; 7GVI={b
} Z[pMlg6Z
} /Xo8 kC
SortUtil.swap(data,i,lowIndex); N6wCCXd
} ]> 36{k]&
} `R+I(Cb
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} >Qg 9KGk'
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Shell排序: _)6 N&u8
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package org.rut.util.algorithm.support; By7?<A
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import org.rut.util.algorithm.SortUtil; klwNeGF]N
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/** 3j2#'Jf|:
* @author treeroot Nt5`F@;B
* @since 2006-2-2 Hz6tk9;w
* @version 1.0 dW`!/OaQD
*/ GL<u#[
public class ShellSort implements SortUtil.Sort{ -fILXu
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/* (non-Javadoc) ]/klKqz
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) q*E<~!jL
*/ xq<3*Bcw
public void sort(int[] data) { d$}z,~sN
for(int i=data.length/2;i>2;i/=2){ ~ WO
for(int j=0;j insertSort(data,j,i); X@j.$0eK
} k6b0&il
} _>k&M7OU4
insertSort(data,0,1); ?0%3~E`l:
} 1O{(9nNj
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/** 2uln)]
* @param data 4,)EG1
* @param j &ap&dM0@%a
* @param i H/?@UJ5m
*/ RL|d-A+;
private void insertSort(int[] data, int start, int inc) { X{YY)}^
int temp; a?dUJt
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ]QbT%0
} fC7rs 5
} $t{;- DpNB
} :fx^{N!T
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} 8uq`^l%KkZ
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快速排序: ah9P
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package org.rut.util.algorithm.support; 2^;zj0]Rt
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import org.rut.util.algorithm.SortUtil; rTmVHt
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/** dvX[,*wz
* @author treeroot I)YUGA5
* @since 2006-2-2 j'QPJ(`~1l
* @version 1.0 mN&B|KWU
*/ K275{ydN
public class QuickSort implements SortUtil.Sort{ %p t^?
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/* (non-Javadoc) mY1Gm|
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]o<&Q52 |
*/ |T) $E
public void sort(int[] data) { MX)mm^A
quickSort(data,0,data.length-1); 9(AY7]6
} `Hp=1a
private void quickSort(int[] data,int i,int j){ gmW-#.
int pivotIndex=(i+j)/2; 3[Xc:;+/
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SortUtil.swap(data,pivotIndex,j); .X](B~\!
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int k=partition(data,i-1,j,data[j]); b2 5.CGF
SortUtil.swap(data,k,j); ARd*c?Om
if((k-i)>1) quickSort(data,i,k-1); nd#owjB
if((j-k)>1) quickSort(data,k+1,j); o6Jhl8
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} &)ED||r,
/** E gD$A!6N8
* @param data F>lM[Lu#
* @param i :6[G;F7s
* @param j 9pMXjsE
* @return !+V."*]l
*/ a9N$I@bi]
private int partition(int[] data, int l, int r,int pivot) { !(8)'<t9
do{ IDK~
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while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot);
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SortUtil.swap(data,l,r); $No^\.mV
} _fM=J+
while(l SortUtil.swap(data,l,r); f>zd,|)At
return l; UY}EW`$#m
} \TS.9 >\
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} !~_6S*~
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改进后的快速排序: Min{&?a
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package org.rut.util.algorithm.support; &\iMIJ-
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import org.rut.util.algorithm.SortUtil; me
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/** ZE[NQ8
* @author treeroot =v(&qh9Q2
* @since 2006-2-2 9l<}`/@}W
* @version 1.0 k!0vpps
*/ fJK;[*&Y
public class ImprovedQuickSort implements SortUtil.Sort { #9rCF 3P
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private static int MAX_STACK_SIZE=4096; +#Ga}eCM
private static int THRESHOLD=10; KSve_CBOh
/* (non-Javadoc) ufB9\yl{~
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2UeK%-~W?
*/ W_bA.zT{
public void sort(int[] data) { =J0r,dR
int[] stack=new int[MAX_STACK_SIZE]; 2=
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int top=-1; d04fj/B
int pivot; UWW'[gEP1
int pivotIndex,l,r; TdL/tg!
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stack[++top]=0; sB=s .`9
stack[++top]=data.length-1; ,Yu2K`
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while(top>0){ ,8)aKy
int j=stack[top--]; lFV\Go
int i=stack[top--]; Sd *7jW?
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pivotIndex=(i+j)/2; TeHxqWx
pivot=data[pivotIndex]; 4hWFgk
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SortUtil.swap(data,pivotIndex,j); "P!zu(h4
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file://partition &\W5|*`x-
l=i-1; YDaGr6y4i
r=j; $]~|W3\G
do{ FPkig`(3
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); `{&l
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SortUtil.swap(data,l,r); I#-T/1N
} B*^8kc:)L
while(l SortUtil.swap(data,l,r); e/Y&d9`
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SortUtil.swap(data,l,j); F$HL\y
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if((l-i)>THRESHOLD){ 98I m/v
stack[++top]=i; SD .c9
stack[++top]=l-1; K_}81|=
} ^:2>I $
if((j-l)>THRESHOLD){ b4CXif
stack[++top]=l+1; (Eo#oX
stack[++top]=j; D6:"k
2
} ]ZS/9 $
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} "9OOyeKu%
file://new InsertSort().sort(data); bJB*w
insertSort(data); 2$O6%0
} :9W)CwZ)V
/** &t@|/~%[
* @param data t<yOTVah
*/ 6Z!OD(/e
private void insertSort(int[] data) { rp!>rM] s
int temp; V&R_A