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。 LP8o7%sv!
插入排序: yh4jRe?f
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package org.rut.util.algorithm.support; @b8X%0B7
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import org.rut.util.algorithm.SortUtil; K"G(?<>~4c
/** +-'`Q Ae
* @author treeroot s%hU*^ 8
* @since 2006-2-2 KgL<}=S
* @version 1.0 \}n !yYh(
*/ 0>8ZN!@K
public class InsertSort implements SortUtil.Sort{ YcEtgpz@
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/* (non-Javadoc) ,d3Q+9/
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 54;l*}8Hl
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public void sort(int[] data) { 6j?FRs
int temp; KC#kss
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); k q/t]%(
} !XkymIX~O.
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冒泡排序: TB;3`
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package org.rut.util.algorithm.support; -ryDsq
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import org.rut.util.algorithm.SortUtil; bEoB;]
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/** >_|Z{:z]d.
* @author treeroot -[i40
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* @since 2006-2-2 6~:W(E}
* @version 1.0 }wa}hIqx
*/ UIC\CP d
public class BubbleSort implements SortUtil.Sort{ 4r68`<mn[
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/* (non-Javadoc) z }FiU[Hs
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jh<TdvF2$
*/ .5jnKU8NF
public void sort(int[] data) { 9~LpO>-
int temp; ]
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for(int i=0;i for(int j=data.length-1;j>i;j--){ 1(#*'xR
if(data[j] SortUtil.swap(data,j,j-1); uW\@x4
} bIvJs9L
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选择排序: /8P4%[\
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package org.rut.util.algorithm.support; \]L::"![?
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import org.rut.util.algorithm.SortUtil; b@{%qh,C
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/** (R;)
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* @author treeroot i?&4SG+2~K
* @since 2006-2-2 []6ShcqJ[v
* @version 1.0 $ g1wK}B3
*/ :>AW@SoTp
public class SelectionSort implements SortUtil.Sort { P ],)
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/* Q%X:5G?
* (non-Javadoc) 'NG^HLD/
* Y1yvI
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) lzr>WbM{{p
*/ A|`Joxr
public void sort(int[] data) { c1)BGy li
int temp; (d5vH)+A
for (int i = 0; i < data.length; i++) { ]|((b/L3
int lowIndex = i; }e/[$!35
for (int j = data.length - 1; j > i; j--) { t9$AvE#a!=
if (data[j] < data[lowIndex]) { Q)%8NVs
lowIndex = j; Ul7pxzj
} f<s'prF
} l7D4`i<F
SortUtil.swap(data,i,lowIndex); U:pLnNp`
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Shell排序: p)[BB6E
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package org.rut.util.algorithm.support; ]Nd'%M
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import org.rut.util.algorithm.SortUtil; yaYIgG
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/** dZ]\1""#H
* @author treeroot go%X%Os]
* @since 2006-2-2 F|n$0vQ*
* @version 1.0 eqUn8<<s
*/ ?:;hTY
public class ShellSort implements SortUtil.Sort{ e G*s1uQl
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/* (non-Javadoc) aP6%OI
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |V~(mS747:
*/ zOdasEd8!
public void sort(int[] data) { 6_`eTL=G
for(int i=data.length/2;i>2;i/=2){ QF.wtMGF&
for(int j=0;j insertSort(data,j,i); 9B6_eFb
} \A ~I>x
} ezq
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insertSort(data,0,1); Bc9|rl V,
} J1y2Qw$G
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/** )>#<S0>'j
* @param data K~hlwjrt
* @param j dv4r\ R^
* @param i Kjca>/id
*/ yn ?U7`V
private void insertSort(int[] data, int start, int inc) { 4S{l>/I
int temp; n4d(`
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); WG[0$j
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快速排序: *.;}OX^X
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package org.rut.util.algorithm.support; ^&w'`-ra
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import org.rut.util.algorithm.SortUtil;
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/** qP .VK?jF|
* @author treeroot zZ"')+7q&%
* @since 2006-2-2 &WWO13\qd
* @version 1.0 LF,c-Cv!jL
*/ x?k |i}Q
public class QuickSort implements SortUtil.Sort{ vR.6^q
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/* (non-Javadoc) >a]
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k}a!lI:
*/ [~r$US
public void sort(int[] data) { Erymx$@P
quickSort(data,0,data.length-1); b:d.Lf{y7
} g=' 2~c
private void quickSort(int[] data,int i,int j){ _xwfz]lb+
int pivotIndex=(i+j)/2; NZ? =pfK\s
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SortUtil.swap(data,pivotIndex,j); .;sPG
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int k=partition(data,i-1,j,data[j]); :QY 9p T
SortUtil.swap(data,k,j); Rn^N+3o'M
if((k-i)>1) quickSort(data,i,k-1);
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if((j-k)>1) quickSort(data,k+1,j); HOI`F3#XI
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} -kS5mR
/** K?<Odw'k
* @param data H_$f
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* @param i GnHf9
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* @param j ;7{wa]
* @return UVRV7^eTe
*/ ^rb7`s#G
private int partition(int[] data, int l, int r,int pivot) { |"&4"nwa
do{ e/~<\
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); <}>-ip?
SortUtil.swap(data,l,r); S^_yiV
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} fC:\Gh5
while(l SortUtil.swap(data,l,r); ?O]gFn
return l; #3jZ7RqzQ
} ;Awzm )Q
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改进后的快速排序: Xq$0% WjG
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package org.rut.util.algorithm.support; +n]Knfi
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import org.rut.util.algorithm.SortUtil; a.ME{:a%
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/** dTNgrW`4
* @author treeroot XX;%:?n
* @since 2006-2-2 3Sb%]f5(
* @version 1.0 K1yM'6Zw
*/ Tdp$laPO'
public class ImprovedQuickSort implements SortUtil.Sort { 4}b:..Ku
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private static int MAX_STACK_SIZE=4096; Eu}A{[^\
private static int THRESHOLD=10; `OK
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/* (non-Javadoc) 0
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) hYx^D>}]
*/ T{Q&