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。 |`{$Ego:
插入排序: e#k)F.TZ:%
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package org.rut.util.algorithm.support; sB^ejH
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import org.rut.util.algorithm.SortUtil; bw+IH-b
/** "pH;0[r]
* @author treeroot ?1] \3nj
* @since 2006-2-2 U}5]Vm$]
* @version 1.0 D0TFC3.k}
*/ CVEo<Tz
public class InsertSort implements SortUtil.Sort{ _sy]k A
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/* (non-Javadoc) !(Q@1c&z
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >B*zzj
*/ ~,xso0
public void sort(int[] data) { @U1t~f^
int temp; 0($On`#
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 6E^9>
} |
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冒泡排序: ZA@zs,o%
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package org.rut.util.algorithm.support; {eQijW2Z3
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import org.rut.util.algorithm.SortUtil; 8LXK3D}?3
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/** ?U1Nm~'UZ
* @author treeroot T1x67 b
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* @since 2006-2-2 NX:\iJD)1U
* @version 1.0 JLjs`oqh
*/ }_@p`>|)rB
public class BubbleSort implements SortUtil.Sort{ -9o7a_Z
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/* (non-Javadoc) K,*-Y)v2W
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -7%dgY(
*/ R|Uu
public void sort(int[] data) { kX:1=+{xg
int temp; W`TSR?4~t?
for(int i=0;i for(int j=data.length-1;j>i;j--){ F}1._I`-
if(data[j] SortUtil.swap(data,j,j-1); v#: ?:<
} hb)C"q=
} %[azMlp<
} MIWc
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} >xsY"N&1i'
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选择排序: Z$6B}cz<
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package org.rut.util.algorithm.support; 8|5+\1!#/)
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import org.rut.util.algorithm.SortUtil; M&H,`gm
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/** Xf
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* @author treeroot <yvo<R^30
* @since 2006-2-2 sN5Mm8~
* @version 1.0 2^:iU{
*/ |tTcJ\bG
public class SelectionSort implements SortUtil.Sort { N$.ls48a4-
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/* &+H\ST(/
* (non-Javadoc) "1%k"+&
* WHfl|e
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) IMpL+W.
*/ ^v:XON<
public void sort(int[] data) { EZhk(LE
int temp; w=0zVh_`(
for (int i = 0; i < data.length; i++) { Uv=)y^H~*A
int lowIndex = i; Ln/*lLIOb
for (int j = data.length - 1; j > i; j--) { `R lWhdE
if (data[j] < data[lowIndex]) { u^x<xw6f
lowIndex = j; M*~X pT3
} 57;(
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} (/t{z=
SortUtil.swap(data,i,lowIndex); zgn`@y2
} ^1aY,6I:
} qP=a:R-
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Shell排序: yHZ&5
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package org.rut.util.algorithm.support; WM=)K1p0u
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import org.rut.util.algorithm.SortUtil; 7~QAprwVS
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/** !L/.[:X
* @author treeroot wGHVq
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* @since 2006-2-2 W4h ]4X
* @version 1.0 "ZmxHMf
*/ S>"C}F$X
public class ShellSort implements SortUtil.Sort{ E|6@h8#
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/* (non-Javadoc) jX t5.9 t
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) EvA8<o
*/ PX?^v8wlqL
public void sort(int[] data) { FE1En
for(int i=data.length/2;i>2;i/=2){ jo0XOs
for(int j=0;j insertSort(data,j,i); Ie8K[ >
} _~*ba+{
} nGTqW/k[+s
insertSort(data,0,1); ;BHIss7
} Cth<x n(Q
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/** Y`xAJ#=
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* @param data x LK,Je
* @param j e.!~7c_z?
* @param i :/}=s5aQl/
*/ fECmELd
private void insertSort(int[] data, int start, int inc) { 9HlM0qE5b
int temp; g+C~}M_7
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); (W9 K:]}
} obgO-d9l
} W:2]d
} ~UsE"5
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} 1flB A,6L
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快速排序: G[P<!6Id!p
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package org.rut.util.algorithm.support; dijHi
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import org.rut.util.algorithm.SortUtil; +J:wAmY4
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/** PKt;]T0
* @author treeroot uSNlI78D
* @since 2006-2-2 `FIS2sl/
* @version 1.0 ZrDr/Q~
*/ A{\!nq_~N
public class QuickSort implements SortUtil.Sort{ =b#,OXQ
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/* (non-Javadoc) ROr| <
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) biAa&
*/ {tF)%>\#
public void sort(int[] data) {
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quickSort(data,0,data.length-1); Xe<kdB3
} E>`gj~
private void quickSort(int[] data,int i,int j){ )F%zT[Auph
int pivotIndex=(i+j)/2; !R1OSVFp
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SortUtil.swap(data,pivotIndex,j); IFF3gh42.
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int k=partition(data,i-1,j,data[j]); j79$/ Ol
SortUtil.swap(data,k,j); jo[U6t+pj7
if((k-i)>1) quickSort(data,i,k-1); (:ij'Zbz
if((j-k)>1) quickSort(data,k+1,j); hg}R(.1K=
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} 8jfEvwY
/** MD=!a5'
* @param data +&8'@v$
* @param i &W-1W99auE
* @param j , @dhJ8/
* @return H4g1@[{|0O
*/ gYvT'72
private int partition(int[] data, int l, int r,int pivot) { GQ=Pkko
do{ ~`o%Y"p%rv
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); iGsD!2
SortUtil.swap(data,l,r); |FJc'&) J"
} YfU6mQ
while(l SortUtil.swap(data,l,r); F48W8'un
return l; \xexl1_;
} F]`_ak E
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} s f<NC>-
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改进后的快速排序: h9WyQl7
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package org.rut.util.algorithm.support; )dZ1$MC[
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import org.rut.util.algorithm.SortUtil; X16r$~Pb
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/** ,kw:g&A
* @author treeroot tY6QhhuS:
* @since 2006-2-2 Cw]bhaG
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* @version 1.0 ,U#FtOec
*/ {.D/MdwW;
public class ImprovedQuickSort implements SortUtil.Sort { pl5Q2zq%
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private static int MAX_STACK_SIZE=4096; DyPb]Udb:
private static int THRESHOLD=10; m005*>IY
/* (non-Javadoc) y`p(}X`>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >J_%'%%f
*/ 'v'=t<wgl
public void sort(int[] data) { 6SN$El 0|G
int[] stack=new int[MAX_STACK_SIZE]; gtw?u b
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int top=-1; a&s&6Q|Y
int pivot; OIdoe0JR:O
int pivotIndex,l,r; vFgX]&bE
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stack[++top]=0; bx=9XZ9g
stack[++top]=data.length-1; 1n|K
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while(top>0){ L(w?.)E
int j=stack[top--]; px=r~8M9}
int i=stack[top--]; w>uo-88
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pivotIndex=(i+j)/2; h\PybSW4s
pivot=data[pivotIndex]; #CTHCwYo
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SortUtil.swap(data,pivotIndex,j); T@\%h8@~]
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file://partition 9>hK4&m^
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r=j; !+Us) 'L
do{ 8$C?j\J|*
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); `as6IMqJD
SortUtil.swap(data,l,r); <^Sp4J
} yjj)+eJ(Q
while(l SortUtil.swap(data,l,r); :zLeS-
SortUtil.swap(data,l,j); Lm"zW>v
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if((l-i)>THRESHOLD){ hz*H,E!>
stack[++top]=i; &n-)Alx
stack[++top]=l-1; '5
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} xI(Y}>
if((j-l)>THRESHOLD){ Z@ZSn0
stack[++top]=l+1; w!~85""
stack[++top]=j; \+Pk"M
} `=JGlN7
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} fs;pX/:FR
file://new InsertSort().sort(data); K6M_b?XekA
insertSort(data); bo04y)Iz
} GG$&=.$
/** 6BIr{SY
* @param data [2Ot=t6]
*/ 5BsfbLKC
private void insertSort(int[] data) { nHTb~t5Ke
int temp; F vae lB
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 32Jl|@8,g
} 8PtX@s43\
} &L`yX/N2
} $mLiEsJ
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} 1G62Qu$O
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归并排序: VH2/
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package org.rut.util.algorithm.support; |dI,4Z\Qb
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import org.rut.util.algorithm.SortUtil; Z g~6
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/** XbMAcgS
* @author treeroot DY6ra% T
* @since 2006-2-2 }&:F,q*
* @version 1.0 gt{$G|bi
*/ Cv;\cI"&
public class MergeSort implements SortUtil.Sort{ >$dkA\&p