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。 CJ+/j=i;~c
插入排序: (bpO>4(S
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package org.rut.util.algorithm.support; Cq mtO?vne
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import org.rut.util.algorithm.SortUtil; @ol}~&"
/** OR84/^>
* @author treeroot }J=>nL'B
* @since 2006-2-2 aMaICM
* @version 1.0 fC6zDTis8A
*/ GWb=X cx
public class InsertSort implements SortUtil.Sort{ &<??,R14
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/* (non-Javadoc) !4"(>Rnw
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) QH z3
*/ [4p~iGC
public void sort(int[] data) { b)+nNqY|
int temp; pxf(C<y6_
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Bi}uL)~rD
} M8_f{|!&
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冒泡排序:
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package org.rut.util.algorithm.support; 5"~F#vt
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import org.rut.util.algorithm.SortUtil; 80(Olf@PE
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/** b'x26wT?
* @author treeroot V\1pn7~V
* @since 2006-2-2 dnEIR5%+.
* @version 1.0 =@e3I)D#?i
*/ qr$h51C&
public class BubbleSort implements SortUtil.Sort{ Sj=x.Tr\
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/* (non-Javadoc) sd5%S zx
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ??Lda='
*/ E; `@S
public void sort(int[] data) { 7'IcgTWDZy
int temp; =()Vrk|uK
for(int i=0;i for(int j=data.length-1;j>i;j--){ D*T*of G
if(data[j] SortUtil.swap(data,j,j-1); Ms4~P6;%
} r6WSX;K
} B3AWJ1o
} /RG>n
} k7L-J
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} }Gvu!a#R
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选择排序: *'i9
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package org.rut.util.algorithm.support; ey/{Z<D
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import org.rut.util.algorithm.SortUtil; {l0[`"EF
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/** Z]~) ->=}
* @author treeroot %XC3V7
* @since 2006-2-2 5>Kk>[|.
* @version 1.0 }Quk n
*/ -- >q=hlA
public class SelectionSort implements SortUtil.Sort { U ;%cp
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/* 2gasH11M
* (non-Javadoc) *\$m1g7b
* C%RYQpY*c
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "
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*/ twWzS
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public void sort(int[] data) { * :kMv;9
int temp; i! <1&{
for (int i = 0; i < data.length; i++) { !VDNqW
int lowIndex = i; -P6Z[V%
for (int j = data.length - 1; j > i; j--) { -){aBMOv3
if (data[j] < data[lowIndex]) { J@}PBHK+
lowIndex = j; 0s$;3qE
} <u_vL
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} TSKT6_IJw
SortUtil.swap(data,i,lowIndex); dug^o c1
} 5+DId7d'n
} ]&;K:#J
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Shell排序: ,J&\)
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package org.rut.util.algorithm.support; xqQLri}
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import org.rut.util.algorithm.SortUtil; H`bS::JI-
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/** #3knKBH
* @author treeroot A8X3|<n=
* @since 2006-2-2 \\ZCi`O
* @version 1.0 ]N;\AXZ7
*/ /lS5B6NU
public class ShellSort implements SortUtil.Sort{ %dwI;%0
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/* (non-Javadoc) fW
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Gk']Ma2J}
*/ J kxsua
public void sort(int[] data) { /O}lSXo6E
for(int i=data.length/2;i>2;i/=2){ 6Z l#$>P
for(int j=0;j insertSort(data,j,i); ?={S"qK(q
} ZOBcV,K
} ipe8U1Sc
insertSort(data,0,1); Ya
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}
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/** #LR.1zZ
* @param data k`((6
* @param j Q ~f mVWq
* @param i Ge`PVwn
*/ c6T[2Ig
private void insertSort(int[] data, int start, int inc) { =D&XE*qkZ
int temp; 5AK@e|G$w
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); o1Krp '*
} z2lT4SAv+
} Ea)=K'Pz
} 7J;\&q'
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} 5gSe=|we*p
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快速排序: eiQ42x@Z
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package org.rut.util.algorithm.support; ,MjlA{0
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import org.rut.util.algorithm.SortUtil; BJgHel+N
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/** PjP6^"
* @author treeroot 9H/C(Vo
* @since 2006-2-2 GOsOFs "I
* @version 1.0 #p<(2wN
*/ _fdD4-2U
public class QuickSort implements SortUtil.Sort{ jmG)p|6
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/* (non-Javadoc) OFxCV`>ce
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) VHi'~B#'*
*/ *P/DDRq(2
public void sort(int[] data) { Ss3~X90!*B
quickSort(data,0,data.length-1); 3Rhoul[S
} %ol\ sO|
private void quickSort(int[] data,int i,int j){ [Z2{S-)UM
int pivotIndex=(i+j)/2; mM r$~^P:
file://swap ^-Rqlr,F;
SortUtil.swap(data,pivotIndex,j); ^3ai}Ei3
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int k=partition(data,i-1,j,data[j]); #^}s1
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SortUtil.swap(data,k,j); h[;DRD!Z
if((k-i)>1) quickSort(data,i,k-1); )KY4BBc
if((j-k)>1) quickSort(data,k+1,j); t`Rbn{
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} qu\U^F
/** h$#PboLd
* @param data 1En:QQ4/
* @param i }5;/!P_A
* @param j &;bey4_J
* @return ,9M2'6=
*/ :Q,~Nw>
private int partition(int[] data, int l, int r,int pivot) { @?jbah#
do{ ;Y,zlq2
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); e8E' X
SortUtil.swap(data,l,r); XmaRg{22
} icQQLSU5
while(l SortUtil.swap(data,l,r); ($Op*bR
return l; 1#*^+A E
} B@@tKn_CQ
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} >@h#'[z,d
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改进后的快速排序: k8!:`jG
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package org.rut.util.algorithm.support; 2*< PmKI
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import org.rut.util.algorithm.SortUtil; H&
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/** OrF.wcg
* @author treeroot jZQ{XMF
* @since 2006-2-2 P'o]#Az
* @version 1.0 ^ p7z3ng
*/ A9KPU:
public class ImprovedQuickSort implements SortUtil.Sort { Qp7F3,/#
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private static int MAX_STACK_SIZE=4096; <(_Tanx9Q
private static int THRESHOLD=10; K"[\)&WBG
/* (non-Javadoc) +tlBOl$
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Ljiw9*ZI
*/ >xA(*7
public void sort(int[] data) { ArjRoXDE
int[] stack=new int[MAX_STACK_SIZE]; OnU-FX<
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int top=-1; &'`ki0Xh;
int pivot; NHQoP&OG
int pivotIndex,l,r; yVQW|D0,j
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stack[++top]=0; 1JJ1!& >
stack[++top]=data.length-1; $ce*W9`
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while(top>0){ {>PEl;,-
int j=stack[top--]; B873UN
int i=stack[top--]; @LFB}B
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pivotIndex=(i+j)/2; XwfR/4
pivot=data[pivotIndex]; AyW=.
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SortUtil.swap(data,pivotIndex,j); ;>/yY]F7
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file://partition K2\)9
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do{ $=ESY>MO
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); ^O=G%de
SortUtil.swap(data,l,r); cs_
} acar-11_o/
while(l SortUtil.swap(data,l,r); L0I|V[
SortUtil.swap(data,l,j); <CJy3<$u
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if((l-i)>THRESHOLD){ 7KGb2V< t
stack[++top]=i; ]jPP]Z:y
stack[++top]=l-1; eh>FYx(
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} "Bwmq9Jq
if((j-l)>THRESHOLD){ 15En$6>
stack[++top]=l+1; Q^=0p0
stack[++top]=j; 6nJQP a
} *YX5bpR?
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} u.G aMl4 (
file://new InsertSort().sort(data); FhPCFmmUT
insertSort(data); p-lFzNPc0
} ]d~{8h!G
/** DUH DFG
* @param data wW8[t8%43
*/ ,j9? 9Z7R
private void insertSort(int[] data) { ._t1eb`m{
int temp; @v:Eh
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ,t;US.s([.
} xX9snSGz
} Q&+)Kp]A
} QoZZXCU
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} [c lwmx
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归并排序: :bi(mX7t
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package org.rut.util.algorithm.support; $TS97'$
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import org.rut.util.algorithm.SortUtil; _<DOA:'v
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