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。 h.ln%6:d
插入排序: isiehKkD
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package org.rut.util.algorithm.support; WXzSf.8p|
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import org.rut.util.algorithm.SortUtil; zXRq) ;s
/** swGp{wJ
* @author treeroot 5gZ6H/.
* @since 2006-2-2 Un[ 0or
* @version 1.0 `HO_t ek
*/ zA
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public class InsertSort implements SortUtil.Sort{ CfMCc:8mL
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/* (non-Javadoc) W3.(s~)o
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *`g'*R
*/ QO&{Jx.^[
public void sort(int[] data) { 0!fT:Ra
int temp; XHER [8l
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); #FNSE*Y
} PDi]zp9>H
} *\!>22*
} |DBj<|SX
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冒泡排序: %&[=%zc
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package org.rut.util.algorithm.support; n;+`%;6
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import org.rut.util.algorithm.SortUtil; i]
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/** hq|I%>y
* @author treeroot FOS5?%J
* @since 2006-2-2 ;rqW?':(i
* @version 1.0 9(AY7]6
*/ JLn)U4>z w
public class BubbleSort implements SortUtil.Sort{ 3[Xc:;+/
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/* (non-Javadoc) GnFm*L
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) KKcajN
*/ lh`ZEvt
public void sort(int[] data) { z55g'+Kab
int temp; h7a/]~
for(int i=0;i for(int j=data.length-1;j>i;j--){ Mc@_[q!xY?
if(data[j] SortUtil.swap(data,j,j-1); 5!Ho[
} `37%|e 3bQ
} 7zcmv"`
} b'1m
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} _fM=J+
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} i[4t`v'Dk
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选择排序: m8,jV R
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package org.rut.util.algorithm.support; 8I]rC<O6:
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import org.rut.util.algorithm.SortUtil; Q>g-xe 1
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/** .$U=ngj\t
* @author treeroot OD6dMql
* @since 2006-2-2 n3_|#1Qu
* @version 1.0 a^eR~efdu@
*/ 7TB&Q*Zf
public class SelectionSort implements SortUtil.Sort { UXPF"}S2
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/* /:ju/~R}
* (non-Javadoc) U&o~U] rm
* `1i\8s&O6@
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Fgw$;W
*/ 2v{42]XYf
public void sort(int[] data) { vs2xx`Y<Lq
int temp; PnJA'@x
for (int i = 0; i < data.length; i++) { [!j;jlh7},
int lowIndex = i; R,+"^:}
for (int j = data.length - 1; j > i; j--) { ^%t{:\
if (data[j] < data[lowIndex]) { |[iEi
lowIndex = j; ?8ady%
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} bC,SE*F\
} \=j|ju3
SortUtil.swap(data,i,lowIndex); FPkig`(3
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} asL!@YE
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} *fp4u_:`
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Shell排序: (AT)w/
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package org.rut.util.algorithm.support; 9=9R"X>L
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import org.rut.util.algorithm.SortUtil; 4`p[t;q
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/** keS%w]87
* @author treeroot Wl{wY,u
* @since 2006-2-2 6BObV/S Jg
* @version 1.0 GC)xQZU)s
*/ mU;\,96#
public class ShellSort implements SortUtil.Sort{ vqRW^>~-B
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/* (non-Javadoc) *W<|5<<u@
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) @\Yu?_a
*/ r(Y@;
public void sort(int[] data) { E|ZLz~
for(int i=data.length/2;i>2;i/=2){ Ew2ksZ>B]&
for(int j=0;j insertSort(data,j,i); dUP8[y
} aZL
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} 4Dv42fO
insertSort(data,0,1); 5uD'Kd$H
} )5l9!1j
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/** gg QI
* @param data /@9-D
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* @param j ?OdJt
* @param i -MItZ
*/ /Avl&Rd
private void insertSort(int[] data, int start, int inc) { so }Kb3 n
int temp; BCw0kq@
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc);
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} -\~D6OA
} >TwL&la
} q/^&si
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} bId@V[9
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快速排序: 4&^BcWqA*f
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package org.rut.util.algorithm.support; Auf2JH~
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import org.rut.util.algorithm.SortUtil; s9b 6l,Z
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/** ee{8C~
* @author treeroot %2TjG
* @since 2006-2-2 9Sk?tl
* @version 1.0 4O'X+dv^I
*/ e$y VV#
public class QuickSort implements SortUtil.Sort{ d`&F
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/* (non-Javadoc) 4^Ghn
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) BjIKs~CT
*/ 9?#L/
public void sort(int[] data) { ({#M*=&"
quickSort(data,0,data.length-1); Vpsv@\@J>
} B&RgUIrFoY
private void quickSort(int[] data,int i,int j){ 2^C>orKQ0
int pivotIndex=(i+j)/2; nnPY8pdjSD
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SortUtil.swap(data,pivotIndex,j); ds" q1
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int k=partition(data,i-1,j,data[j]); 01" b9`jU
SortUtil.swap(data,k,j); &p#$}tm
if((k-i)>1) quickSort(data,i,k-1); vZl]C%
if((j-k)>1) quickSort(data,k+1,j); m'P,:S)=
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} I?!7]S n$
/** >|@i8?|E
* @param data /vLdm-4
* @param i q2C._{ 0'
* @param j t\%gP@?
* @return y}t1r |p
*/ K6l{wyMb|
private int partition(int[] data, int l, int r,int pivot) { vMB`TpZ
do{ 5x:dhkW
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 1f zHmD
SortUtil.swap(data,l,r); oe{K0.`
} =xq+r]g6
while(l SortUtil.swap(data,l,r); >MeM
return l; 1$#{om9
} kg^VzNX
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} efu'PfZ`&
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改进后的快速排序: t5Oeb<REz
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package org.rut.util.algorithm.support; H${5pY_M
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import org.rut.util.algorithm.SortUtil; jJK`+J,i}X
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/** $)O=3dNbo
* @author treeroot ~DYv6-p%
* @since 2006-2-2 ZcLW8L
* @version 1.0 EDf"1b{PX
*/ 5v`[c+@F
public class ImprovedQuickSort implements SortUtil.Sort { [,)G\
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private static int MAX_STACK_SIZE=4096; Qmg2lP.)
private static int THRESHOLD=10; +-*Ww5Zti
/* (non-Javadoc) 5SNa~
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^I CSs]}1
*/ &x YO6_.
public void sort(int[] data) { Sd |=*X
int[] stack=new int[MAX_STACK_SIZE]; qG<3H!Z!ky
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int top=-1; ;#Y'SK
int pivot; .*Mp+Q}^
int pivotIndex,l,r; p-Jp/*R5
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stack[++top]=0; U7do,jCoa
stack[++top]=data.length-1; $"P[nNW3
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while(top>0){ N7
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int j=stack[top--]; ' %&gER
int i=stack[top--]; x,% %^(
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pivotIndex=(i+j)/2; ?-Zl(uX
pivot=data[pivotIndex]; e"D%eFkDW
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SortUtil.swap(data,pivotIndex,j); @/,:".
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r=j; ?l9j]
do{ 90[6PSXk
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); E#!tXO&,
SortUtil.swap(data,l,r); vk0b b3){D
} D>fg
while(l SortUtil.swap(data,l,r); {Z,_/@}N
SortUtil.swap(data,l,j); \}Al85
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if((l-i)>THRESHOLD){ d@XXqCR<
stack[++top]=i; 3%[;nhbA7
stack[++top]=l-1; OU
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} J6I:UML
if((j-l)>THRESHOLD){ >I@VHl O
stack[++top]=l+1; U EjP`
stack[++top]=j; ~NMx:PP
} Lc#GBaJ
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} D"V(A \sZ
file://new InsertSort().sort(data); |z7V1xF
insertSort(data); ZuFcJ?8i
} " 2~L
/** GoLK
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* @param data V,h}l"
*/ ;,}Dh/&E
private void insertSort(int[] data) { bu9.HvT'
int temp; z"97AXu
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); } J[Z)u
} )dd1B>ej]
} >qz#&