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。 GBFtr
插入排序: _DNHc*
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package org.rut.util.algorithm.support; ^? ]%sdT q
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import org.rut.util.algorithm.SortUtil; -'BA{#e}L
/** $.v5~UGb{\
* @author treeroot $K'|0
* @since 2006-2-2 EEZw_ 1
* @version 1.0 Yf~{I-|`q
*/ @kU@N?5e
public class InsertSort implements SortUtil.Sort{ bk^TFE1l
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/* (non-Javadoc) E7)=`kSl
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _Bp1co85MQ
*/ .h5[Q/*h
public void sort(int[] data) { Adgc%
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int temp; H0SQ"?
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ? Cg>h
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冒泡排序: | j a-
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package org.rut.util.algorithm.support; [[Y0
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import org.rut.util.algorithm.SortUtil; w MP
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/** nn9wdt@.]
* @author treeroot O
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* @since 2006-2-2 k{$ ao
* @version 1.0 (%o2jroQ#
*/ 0`A~HH}
public class BubbleSort implements SortUtil.Sort{ X2i}vjkY
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/* (non-Javadoc) ]t*[%4
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $aPfGZ<i
*/ -x4X O`b
public void sort(int[] data) { 0,Y5KE{
int temp; AT)a :i
for(int i=0;i for(int j=data.length-1;j>i;j--){ {$^DMANDx
if(data[j] SortUtil.swap(data,j,j-1); gzD@cx?V
} 0Ir<y
} Gkxj?)`
} 2'<[7!
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选择排序: IMl!,(6;
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package org.rut.util.algorithm.support; [j:[
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import org.rut.util.algorithm.SortUtil; 13&0rLS
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/** T,OwM\`.X{
* @author treeroot -tI'3oT1
* @since 2006-2-2 -}6xoF?
* @version 1.0 OOz[-j>'Y+
*/ W$Yc'E
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public class SelectionSort implements SortUtil.Sort { Pv+5K*"7Cg
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/* TSsKfexQ
* (non-Javadoc) 'vaLUy9]
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) rzI|?QaPi
*/ Wt9Q;hK
public void sort(int[] data) { Q9&kJ%Mo
int temp; 3QOUU,Dt$
for (int i = 0; i < data.length; i++) { a9?y`{%L
int lowIndex = i; ?kz+R'
for (int j = data.length - 1; j > i; j--) { ^p/Ob'!
if (data[j] < data[lowIndex]) { !!nuAQ"E[
lowIndex = j; )
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} *cg(
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} 3TZ*RPmFRm
SortUtil.swap(data,i,lowIndex); kY&h~Q
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Shell排序: oo$MWN8a>r
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package org.rut.util.algorithm.support; 02k4N%
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import org.rut.util.algorithm.SortUtil; 35x 0T/8
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/** X5*C+ I=2
* @author treeroot ow' lRHZ
* @since 2006-2-2 ez9k4IO
* @version 1.0 rqlc2m,<-p
*/ ^U8r0]9
public class ShellSort implements SortUtil.Sort{ ^:jN3@Q%
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/* (non-Javadoc) R,
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])
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*/ /)rkiwp
public void sort(int[] data) { WWZ9._
for(int i=data.length/2;i>2;i/=2){ VNtPKtx\
for(int j=0;j insertSort(data,j,i); ,[nm_^R*\
} S-nlr@w8
} U\?g*
insertSort(data,0,1); g3%t8O/M
} ro[Y-o5Q0
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/** -n? g~(/P
* @param data .M4IGOvOS
* @param j 5b6s4ZyV
* @param i ,s^<X85gp\
*/ 6dEyv99
private void insertSort(int[] data, int start, int inc) { PZD>U)M
int temp; rB%$;<`/
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); =N|kn<h4
} ^SfS~GQ
} +tN&a
} S2VVv$r_6
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} D["MUB4l
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快速排序: 2~;&g?T6
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package org.rut.util.algorithm.support; ^aRgMuU
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import org.rut.util.algorithm.SortUtil; vY*\R0/a
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/** ]^\8U2q}
* @author treeroot b r,+45:
* @since 2006-2-2 xqHL+W
* @version 1.0 ; W7Y2Md
*/ s-VSH
public class QuickSort implements SortUtil.Sort{ fH8!YQG8$
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/* (non-Javadoc) Cv=GZGn-
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) b]]N{: I
*/ t^tCA -
public void sort(int[] data) { |@o6NZ<9N
quickSort(data,0,data.length-1); xkA2g[
} .]}N55M
private void quickSort(int[] data,int i,int j){ DjW$?>
int pivotIndex=(i+j)/2; W%!@QY;E(
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SortUtil.swap(data,pivotIndex,j); XvSIWs
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int k=partition(data,i-1,j,data[j]); IdM*5Y>f
SortUtil.swap(data,k,j); #cwCocw
if((k-i)>1) quickSort(data,i,k-1); [D'Gr*5~{
if((j-k)>1) quickSort(data,k+1,j); 3LlU]
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} 2go>
/** 1=Ilej1
* @param data f8:$G.}i
* @param i b5e@oIK
* @param j uiBTnG"
* @return I*1S/o_xI
*/ Eo{EKI1
private int partition(int[] data, int l, int r,int pivot) { o+g4p:Mf
do{ wy4q[$.4v
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); zb2K;%Qs+f
SortUtil.swap(data,l,r); g*]E>SQ=
} a`Z{
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while(l SortUtil.swap(data,l,r); Z-|li}lDr
return l; iG[?
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} Ds5NAp:x
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改进后的快速排序: X_70]^XL
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package org.rut.util.algorithm.support; \].J-^=
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import org.rut.util.algorithm.SortUtil; (Imp
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