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。 MLD-uI10{
插入排序: /B>p.%M[&
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package org.rut.util.algorithm.support; xDtq@Rb}
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import org.rut.util.algorithm.SortUtil; `>M;f%s
/** ^@W98_bd;
* @author treeroot b(@[Y(_R
* @since 2006-2-2 />1Ndj
* @version 1.0 3a#X:?
*/ We7~tkl(
public class InsertSort implements SortUtil.Sort{ NyHHK8>
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/* (non-Javadoc) M#v#3:&5
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) m(Hb! RT
*/ \)H}
public void sort(int[] data) { SCbN(OBN!
int temp; t{)Z$)'
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ~lB im$o
} ZM)Y Rdh
} (#zSVtZ
} @WcK<Qho
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冒泡排序: KIt:ytFx
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package org.rut.util.algorithm.support; +(>!nsf
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import org.rut.util.algorithm.SortUtil; jVh I`F{n
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/** 8u+FWbOl]
* @author treeroot rL+K Sb
* @since 2006-2-2 REd"}zDI
* @version 1.0 8;'fWV?
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*/ z$'_ =9yZ
public class BubbleSort implements SortUtil.Sort{ li>`9qCmI
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/* (non-Javadoc) `1I@tz|
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) JE~ci#|!
*/ C[cNwvz
public void sort(int[] data) { FcR(uv<
int temp; >s\j/yM
for(int i=0;i for(int j=data.length-1;j>i;j--){ eBZ^YY<*g
if(data[j] SortUtil.swap(data,j,j-1); 3$YgGum
} k M/cD`
} _J<^'w^;%
} 6mH0|:CsY
} SG6@Rn*^
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} E1,Sr?'
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选择排序: )"j)9RQ}
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package org.rut.util.algorithm.support; k0;N D
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import org.rut.util.algorithm.SortUtil; XY(3!>/eQ[
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/** ^X$k<n A;
* @author treeroot R#ayN*
* @since 2006-2-2 sP1wO4M?{
* @version 1.0 f<.43kv@
*/ ]e0yC
public class SelectionSort implements SortUtil.Sort { 0>#or$:6E
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/* rDNz<{evj
* (non-Javadoc) chjXsq#Q^
* mmC&xZ5f
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) E}U[VtaC
*/ &m=Xg(G~c
public void sort(int[] data) { aL\vQ(1zO
int temp; m2o*d$Ke
for (int i = 0; i < data.length; i++) { RhM]OJd'
int lowIndex = i; ^WDAW#f*<
for (int j = data.length - 1; j > i; j--) { U1?*vwfKZ
if (data[j] < data[lowIndex]) { : `D[0
lowIndex = j; qTK\'trgx]
} K/;FP'.
} =$`xis\
SortUtil.swap(data,i,lowIndex); _D9`L&X}
} K-Bf=7F,
} Do@:|n
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} %mR roR6
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Shell排序: e(/~;"r{
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package org.rut.util.algorithm.support; ` aTkIo:ms
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import org.rut.util.algorithm.SortUtil; :O:Rfmr~
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/** &Mz3CC6
* @author treeroot S4]}/Imn)
* @since 2006-2-2 %AbA(F
* @version 1.0 XCU.tWR:
*/ ]=v_u9;
public class ShellSort implements SortUtil.Sort{ k)D:lpxv
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/* (non-Javadoc) f(.@]eu
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) olPV"<;+pO
*/ T1bPI/
public void sort(int[] data) { .uzg2Kd_
for(int i=data.length/2;i>2;i/=2){ c)8V^7=Q
for(int j=0;j insertSort(data,j,i); |He,v/r
} /3D!,V,
} t ZUZNKODW
insertSort(data,0,1); V6l*!R
} P+pL2 BA
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/** qM
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* @param data TQm x$
* @param j d=%:rLm$
* @param i )|`eCzCB
*/ v)@EK6Nty
private void insertSort(int[] data, int start, int inc) { }49X
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int temp; %Kd&A*
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); U,"lOG'
} grEmp9Q ?
} 96;17h$
} .+3= H@8h
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} Z;shFMu
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快速排序: BQVpp,]
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package org.rut.util.algorithm.support; K7}EL|Kx
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import org.rut.util.algorithm.SortUtil; V-a/%_D
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/** rP.qCl+J
* @author treeroot K[Rl R+j
* @since 2006-2-2 -e#YWMo(
* @version 1.0 SeAokz>
*/ B]dHMLzl
public class QuickSort implements SortUtil.Sort{ kzr9-$eb
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/* (non-Javadoc) u2K{3+r`'
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P<GY"W+rR
*/ 1 GUF,A+_O
public void sort(int[] data) { /6}4<~~4TA
quickSort(data,0,data.length-1);
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} uy\<t
private void quickSort(int[] data,int i,int j){ iRo UM.%
int pivotIndex=(i+j)/2; pH.wCD:1n
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SortUtil.swap(data,pivotIndex,j); 5sC{5LJzC
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int k=partition(data,i-1,j,data[j]); `),7*gn*)
SortUtil.swap(data,k,j); Acr\2!))
if((k-i)>1) quickSort(data,i,k-1); d{&+xl^ll
if((j-k)>1) quickSort(data,k+1,j); bTZ/$7pp9
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} p?X.I]=vRv
/** pI7\]e
* @param data fI[tU(x
* @param i aWek<Y~+
* @param j dluNA(Xc-
* @return J]i=SX+ 9
*/ h8>7si
private int partition(int[] data, int l, int r,int pivot) { @B5@3zYs
do{ [CBA Lj5
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); <&TAN L
SortUtil.swap(data,l,r); #T
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} /%}+FMj
while(l SortUtil.swap(data,l,r); r<V]MwO=
return l; Da1BxbDeI
} m8$6FN
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} UTKS<.q
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改进后的快速排序: l5Z=aW Q
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package org.rut.util.algorithm.support; !uLAW_~
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import org.rut.util.algorithm.SortUtil; '|&}rLr:+
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/** ZT4._|2
* @author treeroot rZ 9bz}K
* @since 2006-2-2 epj]n=/}[
* @version 1.0 6kGIO$xJ)
*/ {,.1KtrSN
public class ImprovedQuickSort implements SortUtil.Sort { OP]=MZP|
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private static int MAX_STACK_SIZE=4096; &+6XdhX
private static int THRESHOLD=10; k#R}^Q
/* (non-Javadoc) f'F:U^
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <M nzR
*/ GZ/.eYE
public void sort(int[] data) { j]rE0Og
int[] stack=new int[MAX_STACK_SIZE]; fF[n?:VV
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int top=-1; f}^}d"&F
int pivot; w_@NT}
int pivotIndex,l,r; I!9u](\0
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stack[++top]=0; .3qaaXeH
stack[++top]=data.length-1; yk!,{Q?<$
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while(top>0){ cKh { s
int j=stack[top--]; pD##lkJr
int i=stack[top--]; iHr{
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pivotIndex=(i+j)/2; R!W!8rr3
pivot=data[pivotIndex]; l*HONl&j
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SortUtil.swap(data,pivotIndex,j); vmAMlgZ8{<
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file://partition k6ERGQ9|I
l=i-1; vrm[sP
r=j; hEsCOcEG
do{ Xw`vf7z*
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); w4:S>6X
SortUtil.swap(data,l,r); eJilSFp1
} x?KgEcnw2X
while(l SortUtil.swap(data,l,r); gZ
SortUtil.swap(data,l,j); V;L^q?v
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if((l-i)>THRESHOLD){ hdW",Bf'
stack[++top]=i; (
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stack[++top]=l-1; 24Z7;'
} %lbSV}V)
if((j-l)>THRESHOLD){ `Q1S8i$
stack[++top]=l+1; 3^q,'!PfB
stack[++top]=j; ]7O)iq%
} { >{|3
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