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。 P/8z
插入排序: 13I~
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package org.rut.util.algorithm.support; Mm#=d?YUHJ
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import org.rut.util.algorithm.SortUtil; ZHc;8|}
/** ,CnUQx0
* @author treeroot |(R[5q
* @since 2006-2-2 "QV1G'
* @version 1.0 zuBfkW95+
*/ ^r~R]stE^
public class InsertSort implements SortUtil.Sort{ i<{/r-w=E
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/* (non-Javadoc) R]_fe4Y0
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) bqUQadDB
*/ 0"=}d y
public void sort(int[] data) { x`p3I*_HT5
int temp; :n(!,
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); X] t *
} -!ERe@k(
} SP5t=#M6
} u5dyhx7
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冒泡排序: }i2dXC/
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package org.rut.util.algorithm.support; s&qr2'F+z
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import org.rut.util.algorithm.SortUtil; n 0ls a@l
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/** ~7&O[
* @author treeroot 58_aI?~>>
* @since 2006-2-2 ki|w?0s
* @version 1.0 2v\-xg%1
*/ SQx:`{O
public class BubbleSort implements SortUtil.Sort{ ^b(>Bg)T
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/* (non-Javadoc) IctLhYZ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]lzOz<0q
*/ \)9R1zp/x
public void sort(int[] data) { &SK=ZOKg^
int temp; 'P~6_BW
for(int i=0;i for(int j=data.length-1;j>i;j--){ (ZuV5|N
if(data[j] SortUtil.swap(data,j,j-1); `G.:G/b%H
} -q/FxESp
} _yVF+\kQ
} w'Q2Czso
} sR*JU%
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} vW4N[ .+
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选择排序: 8rsv8OO
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package org.rut.util.algorithm.support; nzORG
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import org.rut.util.algorithm.SortUtil; y2Z1B2E%f
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/** "n=Ih_J
* @author treeroot q CB9z
* @since 2006-2-2 )d-{#
* @version 1.0 -2Azpeh
*/
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public class SelectionSort implements SortUtil.Sort { %uLyL4*L(p
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/* A)q,VSR8
* (non-Javadoc) 4lfJc9J
* },LW@Z}
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >zAI#N4
*/ k|T0Bly3P
public void sort(int[] data) { QabYkL5@
int temp; abM4G
for (int i = 0; i < data.length; i++) { XD\Z$\UJE
int lowIndex = i; CDM==Xa*
for (int j = data.length - 1; j > i; j--) { \M`fkR,,'
if (data[j] < data[lowIndex]) { 4\yKd8I
lowIndex = j; 1)m&6:!b
} C\dlQQ
} OT5'c l
SortUtil.swap(data,i,lowIndex); BV
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} g8_IZ(%:
} &vp0zYd+v
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} 9#@CmiIhy
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Shell排序: 0Ti>PR5M
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package org.rut.util.algorithm.support; )WFSUZ~
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import org.rut.util.algorithm.SortUtil; ;"/ "
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/** lC i_G3C
* @author treeroot ?RD)a`y51
* @since 2006-2-2 D0&{iZ(
* @version 1.0 z[wk-a+w
*/ Kv:ih=?
public class ShellSort implements SortUtil.Sort{ Zb7:qe<UN
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/* (non-Javadoc) BDg6ZI<n
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) PF(P"f.?D
*/ ,uP1U@Cas
public void sort(int[] data) { AcF;5h
for(int i=data.length/2;i>2;i/=2){ G#4cWn'
for(int j=0;j insertSort(data,j,i); `&U ['_%
} gU}?Yy
} 9bT,=b;
insertSort(data,0,1); U)p P^:|
}
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/** |7I.DBjR;
* @param data cZ7b$MZ%9
* @param j -j9R%+YW<
* @param i -3r&O:
*/ !lF|90=
private void insertSort(int[] data, int start, int inc) { 6X:-Z3
int temp; LV 94i
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); !m1pL0
} "t"=9:_t
} L$x/T3@
} <u"#Jw/VP
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} 8C=Y(vPk2
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快速排序: ?^&!/,
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package org.rut.util.algorithm.support; s^9N7'
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import org.rut.util.algorithm.SortUtil; JCZJ\f*EZ
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/** qD#-q vn
* @author treeroot /BVNJNhz
* @since 2006-2-2 [:!#F7O-
* @version 1.0 Bd"7F{H
*/ FO}4~_W{
public class QuickSort implements SortUtil.Sort{ D@Fa~O$75
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/* (non-Javadoc) 3<msiCP
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) {R,rc!yF
*/ v.v3HB8p
public void sort(int[] data) { n@g[VR2t
quickSort(data,0,data.length-1); wy_TFV
} U'.>wjO
private void quickSort(int[] data,int i,int j){ fp4 d?3G
int pivotIndex=(i+j)/2; 9&'Mb[C`"
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SortUtil.swap(data,pivotIndex,j); Ye!=
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int k=partition(data,i-1,j,data[j]); qTyU1RU$9^
SortUtil.swap(data,k,j); qr=U=oK
if((k-i)>1) quickSort(data,i,k-1); 4[.-
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if((j-k)>1) quickSort(data,k+1,j); 3g|O2>*?
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} 6aQ{EO-]'=
/** _zm<[0(
* @param data =$Q3!bJ
* @param i ,-DE;l^Q=
* @param j N M~e
* @return *vsOL4I%
*/ D?5W1m]E,s
private int partition(int[] data, int l, int r,int pivot) { o(~JZik
do{ P!YT{}
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); w6Tb<ja
SortUtil.swap(data,l,r); ieS5*@^k
} q}BQu@'H
while(l SortUtil.swap(data,l,r); .FHOOw1r=
return l; ",8h>eEWK
} #0Oqw=F
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} N'm:V
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改进后的快速排序: bJB:]vs$
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package org.rut.util.algorithm.support; KS(T%mk\
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import org.rut.util.algorithm.SortUtil; YN>#zr+~
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/** e$>5GM
* @author treeroot F/EHU?_EI
* @since 2006-2-2 \wDOE(>
* @version 1.0 nI_Zk.R
*/ V(!b!i@
public class ImprovedQuickSort implements SortUtil.Sort { _9
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private static int MAX_STACK_SIZE=4096; ha8do^x
private static int THRESHOLD=10; -U/&3
/* (non-Javadoc) ^2^ptQj
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :f/ p5c
*/ ax>c&%vo
public void sort(int[] data) { @fE^w^K7
int[] stack=new int[MAX_STACK_SIZE]; cF vGpZ
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int top=-1; ki+9Ln;
int pivot; 5&9(d_#H
int pivotIndex,l,r; {8B\-LUR
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stack[++top]=0; &