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。 "h'0&ZP~_
插入排序: _IJPZ'Hr
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package org.rut.util.algorithm.support; mRB-}
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import org.rut.util.algorithm.SortUtil; 'NF_!D
/** +v:t
* @author treeroot v]|^.x:
* @since 2006-2-2 3+_? /}<
* @version 1.0 y*A#}b*0
*/ #9 5.KkF
public class InsertSort implements SortUtil.Sort{ )NJD+yQ%
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/* (non-Javadoc)
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [uP_F,Y/
*/ (KR$PLxDK
public void sort(int[] data) { -M}#-qwf
int temp; S0nBX"$u
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); pOQ'k>!
} 9,=3D2x&
} ?1JVzZ4H
} WUx}+3eWv
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} BuMBnbT
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冒泡排序: g#qt<d}j
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package org.rut.util.algorithm.support; $wUFHEl
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import org.rut.util.algorithm.SortUtil; tjc3;9
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/** )K.~A&y@
* @author treeroot mw%do&e
* @since 2006-2-2 @'`!2[2'?
* @version 1.0 DK 4 8
*/ &3lg\&"
public class BubbleSort implements SortUtil.Sort{ {#N](yUm
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/* (non-Javadoc) AFO g*{1
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 57IAH$n8o
*/ BYt#aqf
public void sort(int[] data) { @ qWgokf
int temp; @s RRcP~
for(int i=0;i for(int j=data.length-1;j>i;j--){ MIvAugUOl
if(data[j] SortUtil.swap(data,j,j-1); ^T`)ltI]V
} n[ip'*2L
} W|J8QNL?jm
} j#d=V@=a
} vcs=!Ace
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} fCTdM+t
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选择排序: fH?e9E4l
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package org.rut.util.algorithm.support; j*@^O`^v
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import org.rut.util.algorithm.SortUtil; s^+h>
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/** O@r%G0Jge
* @author treeroot }}y$T(:l
* @since 2006-2-2 \}Fx''
* @version 1.0 8P5yaS_
*/ *4#)or
public class SelectionSort implements SortUtil.Sort { (`PgvBL:
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/* $,$bZV
* (non-Javadoc) KM$Lu2
* yq+'O&+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -
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*/ 7/QQ&7+NkS
public void sort(int[] data) { !_CBf#0
int temp; v3!oY t:l
for (int i = 0; i < data.length; i++) { umZy=KHj
int lowIndex = i; sFv68Ag+
for (int j = data.length - 1; j > i; j--) { FrBoE#
if (data[j] < data[lowIndex]) { 0nUcUdIf+
lowIndex = j; Vm}OrFA
} u;p.:{'
} ^=:e9i3u
SortUtil.swap(data,i,lowIndex); -d]-R?mQ
} 1!_$HA
} 5/Viz`hsz
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} ]OIB;h;3
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Shell排序: R:c$f(aKv%
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package org.rut.util.algorithm.support; wSoIU,I
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import org.rut.util.algorithm.SortUtil; \d$fi*{
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/** {3n|=
* @author treeroot ?O3E.!Q|
* @since 2006-2-2 EH{m~x[Ei
* @version 1.0 FG/". dU
*/ eV:I :::
public class ShellSort implements SortUtil.Sort{ CT5\8C
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/* (non-Javadoc) \]RPxM:_>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4/UY*Us&
*/ vN#?>aL
public void sort(int[] data) { 3!E*h0$}
for(int i=data.length/2;i>2;i/=2){ }ie O
for(int j=0;j insertSort(data,j,i); U-~cVk+LI
} -PX Rd)~
} q?}
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insertSort(data,0,1); &V/n!|q<H
} XY %er
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/** SFhi]48&V
* @param data ~[n]la
* @param j oz3N
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* @param i 7<FI[
*/ fz/Ee1T\
private void insertSort(int[] data, int start, int inc) { }AfX0[!O
int temp; %oPW`r
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); We%HdTKT
} KnL-qc
} 4lrF{S8
} ='r86vq
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} }!_x\eq^
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快速排序: \j
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package org.rut.util.algorithm.support; xvo""R/g8
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import org.rut.util.algorithm.SortUtil; B=dF\.&Z
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/** WX.6|
* @author treeroot l Tpn/
* @since 2006-2-2 k;EG28
* @version 1.0 z
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*/ O7<- -
public class QuickSort implements SortUtil.Sort{ z!`aJE/
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/* (non-Javadoc) ,uz+/K%OA5
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >O0z+tj
*/ N
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public void sort(int[] data) { R<\5q%@G
quickSort(data,0,data.length-1); 4pU|BL\j
} m@(8-_
private void quickSort(int[] data,int i,int j){ *[XVkt`H
int pivotIndex=(i+j)/2; ?
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SortUtil.swap(data,pivotIndex,j); cf\PG&S
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int k=partition(data,i-1,j,data[j]); {T;A50
SortUtil.swap(data,k,j); Cn\5Vyrl
if((k-i)>1) quickSort(data,i,k-1); {?X#E12vf
if((j-k)>1) quickSort(data,k+1,j); qH1k
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} R0yPmh,{
/** o 8fB
* @param data R\i8O^[
* @param i p~v
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* @param j |A .U~P):
* @return w_gFN%8
*/ BH`%3Mw
private int partition(int[] data, int l, int r,int pivot) { *:r6E
do{ whH_<@!
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); D./!/>@f
SortUtil.swap(data,l,r); (w1M\yodV
} :A,g :B
while(l SortUtil.swap(data,l,r); oc|%|pmRd<
return l; Kivr)cIG
} L>trLD1pt
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} 2YW|/o4
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改进后的快速排序: ]t2zwHo#
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package org.rut.util.algorithm.support; J&hzr t
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import org.rut.util.algorithm.SortUtil; MC'2;,
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/** OV~]-5gau
* @author treeroot h4iz(*
* @since 2006-2-2 rofGD9f
* @version 1.0 ,0pCc<
*/ Sa8KCWgWh
public class ImprovedQuickSort implements SortUtil.Sort { 4+tKg*|
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private static int MAX_STACK_SIZE=4096; v0aV>-v
private static int THRESHOLD=10; k vuSE
/* (non-Javadoc) MBIlt
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) T'W@fif
*/ fen~k#|l
public void sort(int[] data) { 5%6{ ePh{
int[] stack=new int[MAX_STACK_SIZE]; "e-RV
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int top=-1; #7*{ $v
int pivot; {s{bnU
int pivotIndex,l,r; ^CBc~um2
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stack[++top]=0; mJ #|~I*Z-
stack[++top]=data.length-1; hx.ln6=4
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while(top>0){ RV=Z$
int j=stack[top--]; ;h"St0
int i=stack[top--]; }G/#Nb)
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pivotIndex=(i+j)/2; ZFxa2J~ ;
pivot=data[pivotIndex]; |T;]%<O3E
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SortUtil.swap(data,pivotIndex,j); v1j&oA}$.
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file://partition \jpm
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do{ c/'Cju W
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); `;c{E%qeq
SortUtil.swap(data,l,r); wCitQ0?
} m>:zwz< ;
while(l SortUtil.swap(data,l,r); llE_-M2gH
SortUtil.swap(data,l,j); ,_iR
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if((l-i)>THRESHOLD){ AZ7m=Q97
stack[++top]=i; |19zjhl
stack[++top]=l-1; k|r|*|8
} 9 *+X^q'
if((j-l)>THRESHOLD){ u}0U!
stack[++top]=l+1; ?= RC?K
stack[++top]=j; 'V`Hp$r
} RG8Ek"D@
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} s[n*fV']A
file://new InsertSort().sort(data); |Bhj L,
insertSort(data); GF/!@N
} +M{A4nYY|1
/** P$H9
* @param data U3tA"X.K
*/ h?-*SLT
private void insertSort(int[] data) { 4Q?3gA1
int temp; YVW`|'7)|
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); KB5<)[bs
} it)!-[:bm
} [B1h0IR
} xV\mS+#
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} K9=f`JI9
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归并排序: T$pBgS>
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package org.rut.util.algorithm.support; $gPR3*0
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import org.rut.util.algorithm.SortUtil; d8Sr,t+
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/** Ap)pOD7
* @author treeroot cKe{ ]a
* @since 2006-2-2 1$RUhxT
* @version 1.0 Ch0t'
*/ RA3!k&8?#
public class MergeSort implements SortUtil.Sort{ wqE+hKs,
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/* (non-Javadoc) [eLU}4v{
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P>wTp)
*/ %|o2d&i
public void sort(int[] data) { =2&