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。 cL6 6gOEL
插入排序: OlIT|bzkb
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package org.rut.util.algorithm.support; wUbmzP.
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import org.rut.util.algorithm.SortUtil; ERk kSTp
/** J =b*
* @author treeroot rU],J!LF
* @since 2006-2-2 ZQ@3P7T
* @version 1.0 7TP$
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public class InsertSort implements SortUtil.Sort{ AzZi{Q ?
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/* (non-Javadoc) N[>:@h
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "_t4F4z
*/ X88F>1}
public void sort(int[] data) { `hzd|GmX
int temp; STv(kQs
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); \{kHSV%z
} EH(tUwY%{
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} cS4xe(n8
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} nZe\5`
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冒泡排序: bG52s
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package org.rut.util.algorithm.support; cnbo+U
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import org.rut.util.algorithm.SortUtil; `Rrr>vj
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/** d"Bo8`_
* @author treeroot /({P1ti:C
* @since 2006-2-2 /\~l1.6`
* @version 1.0 D^$]>-^
*/ ka (xU#;
public class BubbleSort implements SortUtil.Sort{ Tb}b*d3
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/* (non-Javadoc) dCinbAQ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) __a9}m4i7x
*/ ?HW*qD#k
public void sort(int[] data) { qRr;&M &t_
int temp; G#csN&|,
for(int i=0;i for(int j=data.length-1;j>i;j--){ B%,0zb+-L
if(data[j] SortUtil.swap(data,j,j-1); <fP|<>s$@1
} ;2U`?"
} H7uW|'XWz
} 8garRB{
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} kw!! 5U;7
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选择排序: s8R.?mhH=
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package org.rut.util.algorithm.support; gI[xOK#
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import org.rut.util.algorithm.SortUtil; H=*;3gM,'
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/** +"Ka #Z
* @author treeroot 0PZpE
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* @since 2006-2-2 emTqbO
* @version 1.0 qg|SBQ?6
*/ 9OX&;O+5
public class SelectionSort implements SortUtil.Sort { p2\@E}
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/* F6yMk%
* (non-Javadoc) 3d[fP#NY7
* c!b4Y4eJ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) U4Il1|
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*/ 2WqjNqx)6
public void sort(int[] data) { nzU^G)
int temp; WS4Ja$*
for (int i = 0; i < data.length; i++) { r"c<15g2'
int lowIndex = i; CnN PziB
for (int j = data.length - 1; j > i; j--) { IvO#tI
if (data[j] < data[lowIndex]) { ApR>b%
lowIndex = j; T=%,^
} `bNY[Gv>)
} :hC+r=!I
SortUtil.swap(data,i,lowIndex); (/JiOg^cw
} icH\(
} t
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Shell排序: =)!sWY:
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package org.rut.util.algorithm.support; c <Fr^8
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import org.rut.util.algorithm.SortUtil; V^apDV\AV
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/** U4M}E h8
* @author treeroot ](-zt9,
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* @since 2006-2-2 Bq@_/*'*Y
* @version 1.0 JS$ojL^
*/ ~Z-o2+xA
public class ShellSort implements SortUtil.Sort{ 05hjC
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/* (non-Javadoc) :Y>FuE
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _Fkz^B*
*/ cao=O
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public void sort(int[] data) { &PZ&'N|P
for(int i=data.length/2;i>2;i/=2){ (X zy~l<
for(int j=0;j insertSort(data,j,i); v(=?@tF}E
} ;S0Kf{DN2
} $Y`oqw?g+^
insertSort(data,0,1); &Ql$7:r
} m55|&Ux|
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/** [] cF*en
* @param data z;iNfs0i$
* @param j s k_TKN`+
* @param i AdD,94/
*/ 'Y2ImSWj
private void insertSort(int[] data, int start, int inc) { 18nT
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int temp; m)Ta5w^
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); hU'h78bt(
} \:-"?
} Z2a~1BL
} Y]VLouzl
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} 9x`1VR
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快速排序: fDjJdRS"
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package org.rut.util.algorithm.support; mRO@ZY;5
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import org.rut.util.algorithm.SortUtil; >npTUOGL=n
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/** O\F$~YQ
* @author treeroot = IJ}b=:
* @since 2006-2-2 uN&UYJ'B
* @version 1.0 $+|.
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*/ Cz|F%>y#
public class QuickSort implements SortUtil.Sort{ @.)WS\Cv#E
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/* (non-Javadoc) Gv&%cq1
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I= 2jQ>$Q
*/ yXQ 28A
public void sort(int[] data) { t|P+^SL
quickSort(data,0,data.length-1); @4G{L8Q}
} b$q~(Z}
private void quickSort(int[] data,int i,int j){ ' ""s%C+
int pivotIndex=(i+j)/2; v]\T&w%9
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SortUtil.swap(data,pivotIndex,j); V%'' GF
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int k=partition(data,i-1,j,data[j]); yMEI^,0"
SortUtil.swap(data,k,j); ka@yQ V
if((k-i)>1) quickSort(data,i,k-1); .oM;D~(=9
if((j-k)>1) quickSort(data,k+1,j); lWDSF]ZYV
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} uuQsK. S
/** {A~3/M%74;
* @param data `(r0+Qx
* @param i G\R6=K:f7
* @param j c*r@QmB:
* @return =gC% =
*/
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private int partition(int[] data, int l, int r,int pivot) { OaKr_m
do{ =zR9^k
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); P6")OWd
SortUtil.swap(data,l,r); 'U,\5jj'Y
} \*M;W|8aB
while(l SortUtil.swap(data,l,r); p+228K ;H
return l; 3:<[;yo
} cSjX/%*!m
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} XP[~ :+
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改进后的快速排序: `a[
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package org.rut.util.algorithm.support; 9VMk?
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import org.rut.util.algorithm.SortUtil; 0KZ$v/m
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/** %!DTq`F
* @author treeroot lk[u
* @since 2006-2-2 .$1S-+(kV
* @version 1.0 t>Yl=79,
*/ sX]gL
public class ImprovedQuickSort implements SortUtil.Sort { qoZe<jW (
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private static int MAX_STACK_SIZE=4096; h*Mt{A&'.&
private static int THRESHOLD=10; 3v&Shb?xb;
/* (non-Javadoc) g-H,*^g+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2&=CC4<!d
*/ C`uL
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public void sort(int[] data) { 7%&e4