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。 sd*NY
插入排序: \@^`
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package org.rut.util.algorithm.support; <){J|O
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import org.rut.util.algorithm.SortUtil; "9y0]~
/** "M %WV>
* @author treeroot !;Ctz'wz
* @since 2006-2-2 E-?JHJloU
* @version 1.0 >bO}sx1?
*/ K2tOt7M!
public class InsertSort implements SortUtil.Sort{ lXnv(3j3*s
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/* (non-Javadoc) Eqx |k-<a
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) CzmB76zy.
*/ Z22#lF\ N
public void sort(int[] data) { ;`a~9uG
int temp; C}:_&^DQ
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 9;
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} ;4`%?6%
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冒泡排序: KM-7w66V
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package org.rut.util.algorithm.support; h]o{>
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import org.rut.util.algorithm.SortUtil; sz4;hSTy
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/** 8Tp!b
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* @author treeroot }SS~uQ;8
* @since 2006-2-2 KFM)*Icg\8
* @version 1.0 "Y=4Y;5q
*/ 3rx8"
public class BubbleSort implements SortUtil.Sort{ ;!H]&2`'(
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/* (non-Javadoc) A$::|2~
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;7mE%1X
*/ N6!9QIu~i
public void sort(int[] data) { PD:lI]:s
int temp; h)X"<a++N
for(int i=0;i for(int j=data.length-1;j>i;j--){ X`k#/~+0
if(data[j] SortUtil.swap(data,j,j-1); r}#,@<
} qu/b:P
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} N8m3Wy
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选择排序: ?]58{O(?c
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package org.rut.util.algorithm.support; 2nB{oF-Z
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import org.rut.util.algorithm.SortUtil; z?C&,mv
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/** }h9f(ZyJn
* @author treeroot -W1Apd%>
* @since 2006-2-2 ()(/9t
* @version 1.0 b./MVz
*/ #]s&[O43
public class SelectionSort implements SortUtil.Sort { jd}-&DN
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/* SbD B[O%
* (non-Javadoc) cdD?QnZ
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2U'Vq
*/ E~c>LF_]Q
public void sort(int[] data) { JS(%:
int temp; DG
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for (int i = 0; i < data.length; i++) { :v 8~'cZ
int lowIndex = i; $`|\aXd[C*
for (int j = data.length - 1; j > i; j--) { <io;d$=}
if (data[j] < data[lowIndex]) { e]3b0`E
lowIndex = j; c+G%o8
} |SwW*C
} %xP'*EaM?
SortUtil.swap(data,i,lowIndex); E:$r" oS
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Shell排序: Y86mg7[U/
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package org.rut.util.algorithm.support; kD_616
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import org.rut.util.algorithm.SortUtil; k '-5&Q
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/** _F tI2G9
* @author treeroot crr#tad.
* @since 2006-2-2 .=/TT|eMS
* @version 1.0
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*/ ew|e66Tw$
public class ShellSort implements SortUtil.Sort{ O|Y~^:ny
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/* (non-Javadoc) Cg];UB}k
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) nT/Azg
*/ vptBDfzz
public void sort(int[] data) { _"S1>s)X?j
for(int i=data.length/2;i>2;i/=2){ G[a&r
for(int j=0;j insertSort(data,j,i); \@GKVssw
} sx@%3j
} FYX"q-Z
insertSort(data,0,1); p JM&R<i:
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/** XjU/7Q
* @param data j@Y'>3
* @param j CP6xyXOlPB
* @param i yFjjpEpnFt
*/ "D7wtpJ
private void insertSort(int[] data, int start, int inc) { 50NLguE
int temp; "4/J4'-
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ,O1/|Y
} ;&ypvKG
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快速排序: ,p9>/)l
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package org.rut.util.algorithm.support; C=<PYkt,L
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import org.rut.util.algorithm.SortUtil; T6I$7F
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/** SuFGIb7E
* @author treeroot ,!oR"b!
* @since 2006-2-2 V D.T=(
* @version 1.0 fW3NH7aUG
*/ aW;DfH
public class QuickSort implements SortUtil.Sort{ N2$uw@s
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/* (non-Javadoc) KU*XRZu)
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9;`E,w
*/ <@J0
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public void sort(int[] data) { ECr}7R%
quickSort(data,0,data.length-1); xpB*>zb
} Wr;9Mz&{
private void quickSort(int[] data,int i,int j){ V~"-\@
int pivotIndex=(i+j)/2; }^zsN`
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SortUtil.swap(data,pivotIndex,j); 6QG"~>v7'(
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int k=partition(data,i-1,j,data[j]); ){$*<#&H
SortUtil.swap(data,k,j); S$ Z?T
if((k-i)>1) quickSort(data,i,k-1); S)=3%toS>
if((j-k)>1) quickSort(data,k+1,j); VrnZrQj<
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} l3HfaCP6:
/** eR>|1s%^
* @param data V&Q_iE
* @param i nIf~ds&TT
* @param j ANq3r(
* @return GtpBd40"
*/ ]jgMN7
private int partition(int[] data, int l, int r,int pivot) { '))K'
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do{ B2l5}"{`
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); W*^_Ul|
SortUtil.swap(data,l,r); PHxNo)
} wL~-k
while(l SortUtil.swap(data,l,r); HJt@m
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return l; 8\Kpc;zb
} n'qWS/0U=
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改进后的快速排序: fRomP-S
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package org.rut.util.algorithm.support; ,C}s8|@k
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import org.rut.util.algorithm.SortUtil; $tB `dDj
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/** hkl9EVO)
* @author treeroot SGK
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* @since 2006-2-2 ^50\c$
* @version 1.0
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*/ e>g>)!F
public class ImprovedQuickSort implements SortUtil.Sort { !v<`^`x9I
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private static int MAX_STACK_SIZE=4096; N<^)tR8+
private static int THRESHOLD=10; {iYrC m[_
/* (non-Javadoc) ErxvGB(2
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) EHk$,bM
*/ <ZjT4><
public void sort(int[] data) { y_LFkZ
int[] stack=new int[MAX_STACK_SIZE]; AwWo,Y399h
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int top=-1; rk
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int pivot; >9<