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。 &2=dNREJ}1
插入排序: 1s{^X
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package org.rut.util.algorithm.support; GKFq+]W
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import org.rut.util.algorithm.SortUtil; F`9ZH.
/** jvV9eA:zl
* @author treeroot <@Fy5k-%.
* @since 2006-2-2 N]<!j$pOz
* @version 1.0 L
*/ ~2zMkVH
public class InsertSort implements SortUtil.Sort{ HCa
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/* (non-Javadoc) p!<$vE
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {M?vBgR\B
*/ .^m>AKC0cX
public void sort(int[] data) { q=DN
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int temp; h'$9C
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Y"6w,_'m
} RNhJ'&SYs
} %T[^D&9$,
} =Odv8yhn
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} ph#tgLJ
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冒泡排序: kee|42E
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package org.rut.util.algorithm.support; D Kw*~0
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import org.rut.util.algorithm.SortUtil; h#hxOVl%x
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/** ]l(wg]
* @author treeroot 5&e<#"
* @since 2006-2-2 mnID3=JF
* @version 1.0 >"@?ir
*/ ?*oKX
public class BubbleSort implements SortUtil.Sort{ e[Jem5C
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/* (non-Javadoc) C( id=F
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) XJ0oS32_wK
*/ CY&
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public void sort(int[] data) { j}AFE
int temp; 'vbc#_;
for(int i=0;i for(int j=data.length-1;j>i;j--){ ejO}t:}P
if(data[j] SortUtil.swap(data,j,j-1); zP;cTF(C
} R i'L
} ZJjTzEV%^B
} hHPs&EA.p
} ?9X&tK)E-
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} wCHR7X0*b
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选择排序: ,\aUq|~
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package org.rut.util.algorithm.support; &l?+3$q
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import org.rut.util.algorithm.SortUtil; DS-fjH\
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/** KHDZ
* @author treeroot a@pz*e
* @since 2006-2-2 )kJH5/
* @version 1.0 &
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*/ l6u&5[C
public class SelectionSort implements SortUtil.Sort { D)brPMS:o
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/* WpLZQ6wH
* (non-Javadoc) u<n`x6gL
* Do]*JO)(
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) '>v^6iS
*/ =U.
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public void sort(int[] data) { D5an\gE
int temp; X{g%kf,D=
for (int i = 0; i < data.length; i++) { 2F8|I7R
int lowIndex = i; ((rv]f{
for (int j = data.length - 1; j > i; j--) { =]>NDWqpHN
if (data[j] < data[lowIndex]) { '?Jxt:<
lowIndex = j; e\b`n}nC
} P=5NKg
} =q"eU=9
SortUtil.swap(data,i,lowIndex); o_Si mJFK
} ?K@t0a
} I=Oy-
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} ./p|?pu
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Shell排序: +}
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package org.rut.util.algorithm.support; e0;
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import org.rut.util.algorithm.SortUtil; t+nRw?Z
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/** b%t+,0s|
* @author treeroot u7;~
* @since 2006-2-2 ba3-t;S
* @version 1.0 ba@=^Fa;
*/ 7rHS^8'H&
public class ShellSort implements SortUtil.Sort{ p$k\m|t
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/* (non-Javadoc) ~B$b)`*
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Y1dVM]l
*/ "*7C`y5&P
public void sort(int[] data) { _iEj
for(int i=data.length/2;i>2;i/=2){ gq5qRi`q
for(int j=0;j insertSort(data,j,i); $A$@|]}p
} +3,|"g::
} #~Q8M*~@
insertSort(data,0,1); Fpt-V
} &&L"&Rc
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/** zx1:`K0bi
* @param data d/7l efF
* @param j \nqo%5XL
* @param i &gc`<kLu
*/ $gMCR
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private void insertSort(int[] data, int start, int inc) { H0*5_OJ!i
int temp; (P==VZQg
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); _N3}gFh>
} %q_Miu@
} 9YF$CXonE=
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} (RXS~8
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快速排序: Pj7gGf6v
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package org.rut.util.algorithm.support; ;TZGC).6
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import org.rut.util.algorithm.SortUtil; ["3df>!f
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/** =z:U~D
* @author treeroot
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* @since 2006-2-2 H:a|x#"
* @version 1.0 AH.9A_dG
*/ /f1'm@8;
public class QuickSort implements SortUtil.Sort{ *rqm8z50a
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/* (non-Javadoc) 2r];V'r
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) zL s^,x
*/ !;>(ie\
public void sort(int[] data) { {aN(d3c
quickSort(data,0,data.length-1); Fu8 7fVi/\
} }gsO&g"8
private void quickSort(int[] data,int i,int j){ C4$/?,K(
int pivotIndex=(i+j)/2; ]2+g&ox4'
file://swap hbuZaxo<
SortUtil.swap(data,pivotIndex,j); r3I,11B
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int k=partition(data,i-1,j,data[j]); !W1eUY
SortUtil.swap(data,k,j); GH'O!}
if((k-i)>1) quickSort(data,i,k-1); {TZE/A3D,
if((j-k)>1) quickSort(data,k+1,j); N_C_O$j
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} |0{ i9.=
/** Kla:e[{
* @param data 6CNS%\A
* @param i ^{[`=P'/
* @param j w1B<0'#
* @return FsCwF&/q
*/ 'o\;x"YJ
private int partition(int[] data, int l, int r,int pivot) { QJ];L7Hbo
do{ L(WOet( '
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); _g6m=N4
SortUtil.swap(data,l,r); j$eCe<.3
} gJ\%>r7h
while(l SortUtil.swap(data,l,r); 7dD.G/'
return l; Xyv8LB
} Ku3!*n_\
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} p[YWSjf
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改进后的快速排序: =aow
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package org.rut.util.algorithm.support; Mr6E/7g%
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import org.rut.util.algorithm.SortUtil; \;
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/** 3kLOoL?
* @author treeroot - s|t^
* @since 2006-2-2 }(=ml7 )v
* @version 1.0 GqjO>v fy
*/ "d?f:x3v^
public class ImprovedQuickSort implements SortUtil.Sort { i
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private static int MAX_STACK_SIZE=4096; Pi%tsKk%
private static int THRESHOLD=10; `?SG XXC
/* (non-Javadoc) 6H;kJHn
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $T*KaX\{B
*/ E:Y:X~vy
public void sort(int[] data) { y<r44a_!
int[] stack=new int[MAX_STACK_SIZE]; onzA7Gre
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int top=-1; < EXWWrm
int pivot; ",ad7Y7i
int pivotIndex,l,r; *?Wtj
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stack[++top]=0; Kcn\g.
stack[++top]=data.length-1; Ck(.N
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while(top>0){ I2*oTUSik
int j=stack[top--]; |p'i,.(c_W
int i=stack[top--]; K%<GU1]-]
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pivotIndex=(i+j)/2; 2nx8iA
pivot=data[pivotIndex]; 'aPCb`^;w
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SortUtil.swap(data,pivotIndex,j); UQdyv(jXq
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file://partition t/LgHb:)
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r=j; `Y\QUj
do{ 7S2c|U4IM
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); N K"%DU<
SortUtil.swap(data,l,r); l-=e62I{=|
} E<a.LW@
while(l SortUtil.swap(data,l,r); I:/4t^%
SortUtil.swap(data,l,j); -CElk[u
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if((l-i)>THRESHOLD){ [5LMt*Y
stack[++top]=i; %jgg59
stack[++top]=l-1; Z>HNe9pr
} 6+#,=!hF{
if((j-l)>THRESHOLD){ (6[Wr}SW5
stack[++top]=l+1; (\q[gyR
stack[++top]=j; 67
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} &`sR){R
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} W["HDR
file://new InsertSort().sort(data);
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insertSort(data); HtS#_y%(
} M[vCpa
/** .6I%64m
* @param data
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*/ |Qq+8IeYG
private void insertSort(int[] data) { ]Qy,#p'~&H
int temp; a5I%RY
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); kpY%&
} 5z[6rT=a
} 7\ ZL
} Q}ZBr^*]1e
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} hf[IEK
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归并排序: SOYDp;j
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package org.rut.util.algorithm.support; 8\u;Wf
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import org.rut.util.algorithm.SortUtil; 6z`8cI+LRw
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/** 7Fc |
* @author treeroot !?Tzk&'
* @since 2006-2-2 3_@G{O)e
* @version 1.0 p?KCVvx$
*/ @+Pf[J41
public class MergeSort implements SortUtil.Sort{ I$F\(]"@
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/* (non-Javadoc) 0YHYx n
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &,Uc>L%m
*/ RDJ82{
public void sort(int[] data) { IBF.&[[S
int[] temp=new int[data.length]; $&NbLjeS
mergeSort(data,temp,0,data.length-1); >0ssza
} =1_j aDp
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private void mergeSort(int[] data,int[] temp,int l,int r){ 2@4MC`&