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。 a1ai?},
插入排序: I5g!c|#y
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package org.rut.util.algorithm.support;
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import org.rut.util.algorithm.SortUtil; T7*p!0
/** M5+K[Ir/y9
* @author treeroot j g_;pn
* @since 2006-2-2 QB7^8O!<
* @version 1.0 h'A
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*/ |l,0bkY@&
public class InsertSort implements SortUtil.Sort{ m_UzmWF
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/* (non-Javadoc) l I+KT_|L
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `~LaiN.
*/ 0f,Ii_k bT
public void sort(int[] data) { \Qz
int temp; d'p@[1/
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); nAyyjd3!S
} `R:HMO[ow
} E\~!E20^
} !(qaudX{>k
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} k7bfgb{
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冒泡排序: "C]_pWk
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package org.rut.util.algorithm.support; Mj:=$}rs^
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import org.rut.util.algorithm.SortUtil; g]}E1H6-
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/** n}q/:|c
* @author treeroot N#vV;
* @since 2006-2-2 ['@R]Si"!
* @version 1.0 efm#:>H
*/ 4+au6ABy
public class BubbleSort implements SortUtil.Sort{ /Y*6mQ:
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/* (non-Javadoc) Vxim$'x!
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) M"z3F!-j
*/ q]z%<`.9*
public void sort(int[] data) { 9'h4QF+Y
int temp; U9yR~pw
for(int i=0;i for(int j=data.length-1;j>i;j--){ s#V:!
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if(data[j] SortUtil.swap(data,j,j-1); ~H`(z zk
} =p$:vW
} |FZIUS{]
} *7!*kqg!u
} _,E! <
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} 4CioVQdj
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选择排序: m#t
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package org.rut.util.algorithm.support; Kv6#WN~
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import org.rut.util.algorithm.SortUtil; PH]ui=
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/** `Z~\&r=
* @author treeroot JJE0q5[
* @since 2006-2-2 REKv&^FLN
* @version 1.0 x'`L(C
*/ Y1U\VU
public class SelectionSort implements SortUtil.Sort { 0D_{LBO6LU
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/* (ysDs[?\
* (non-Javadoc) 7D wf0Re`
* jxA*Gg3cT5
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c^BeT;
*/ DX@*lM
public void sort(int[] data) { K7gqF~5x~
int temp; N+0`Jm
for (int i = 0; i < data.length; i++) { :X~{,J
int lowIndex = i; )x&OdFX
for (int j = data.length - 1; j > i; j--) { B}2 JK9
if (data[j] < data[lowIndex]) { Km,:7#aV
lowIndex = j; FR 1se
} `1)n2<B
} 7%Ii:5Bp
SortUtil.swap(data,i,lowIndex); X4:SH>U!
} uOnyU+fZV
} BJ7m3[lz
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} "r.eN_d
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Shell排序: p+d?k"WN?
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package org.rut.util.algorithm.support; pbb6?R,
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import org.rut.util.algorithm.SortUtil; \H$j["3
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/** X| X~|&j
* @author treeroot vd!|k5t[d
* @since 2006-2-2 $4*k=+wS
* @version 1.0 z9[BQ(9t
*/ qECta'b&
public class ShellSort implements SortUtil.Sort{ z2.Z xL"*
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/* (non-Javadoc) (.54`[2+L
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 5Rec~&v
*/ f8?c[%br
public void sort(int[] data) { \3v}:E+3
for(int i=data.length/2;i>2;i/=2){ 2zN%Z!a#J
for(int j=0;j insertSort(data,j,i); ?.b.mkJ
} 60&4?<lR4
} W-ll2b
insertSort(data,0,1); #-Nc1+gu
} >@NGX-gp
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/** Rt10:9Kz$
* @param data 3"J85V%h]n
* @param j l\{{iAC]I
* @param i -?&s6XA%#
*/ 5 NdIbC
private void insertSort(int[] data, int start, int inc) { iH""dtO
int temp; A('_.J=
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); O*zF` 9
} fA>FU/r
} .kkrU
} KQ(7% W
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} ' Zmslijf
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快速排序: ~}fQ.F*7R
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package org.rut.util.algorithm.support; ~)&im.Q4
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import org.rut.util.algorithm.SortUtil; zV8^Hxl
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/** 49m}~J=*
* @author treeroot $9Yk]~
* @since 2006-2-2 h16 i]V
* @version 1.0 4(FEfde=
*/ C%y!)v_x
public class QuickSort implements SortUtil.Sort{ QL4BD93v
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/* (non-Javadoc) 7-Yn8Gq
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) RY]Vo8
*/ Pwh0Se5Z
public void sort(int[] data) { 9:tn!<^=I
quickSort(data,0,data.length-1); #fR~7K R
} o1(?j}:c|
private void quickSort(int[] data,int i,int j){ (jY -MF3
int pivotIndex=(i+j)/2; ,:1_I`d>#X
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SortUtil.swap(data,pivotIndex,j); bAa+MB#A
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int k=partition(data,i-1,j,data[j]); 8S_v} NUm
SortUtil.swap(data,k,j); L&2 Zn{#`
if((k-i)>1) quickSort(data,i,k-1); CnA0^JX
if((j-k)>1) quickSort(data,k+1,j); AT%@T|
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} !{,
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/** pNzSy"Y$
* @param data ] oh.w
* @param i
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* @param j TQ\\/e:
* @return <CnTiS#
*/ lZa L=HS#L
private int partition(int[] data, int l, int r,int pivot) { sjISVJ?
do{ xEfz AJ5&
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); w0FkKJV
SortUtil.swap(data,l,r); M>BcYbXf
} }JKK"d}U
while(l SortUtil.swap(data,l,r); m"CsJ'\ors
return l; 4pfv?!Oj
} 3\Ma)\>R\-
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} K !MIA
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改进后的快速排序: i$ :\,
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package org.rut.util.algorithm.support;
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import org.rut.util.algorithm.SortUtil; hnbF}AD
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/** M!e$h?vB
* @author treeroot e+t2F
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* @since 2006-2-2 2}^fhMS
* @version 1.0 SqF9#&F
*/ #6%9*Rh
public class ImprovedQuickSort implements SortUtil.Sort { ^l(Kj3gM
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private static int MAX_STACK_SIZE=4096; rfdT0xfcU
private static int THRESHOLD=10; 8=#J:LeXj
/* (non-Javadoc) w9J^s<e
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) RI
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*/ [aK7v{Wu
public void sort(int[] data) { Ew|VDD(.
int[] stack=new int[MAX_STACK_SIZE]; _m+64qG_8'
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int top=-1; (KF=v31_m
int pivot; Y^Olcz
int pivotIndex,l,r; w/`I2uYu
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stack[++top]=0; z&6TdwhV
stack[++top]=data.length-1; =h4*
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while(top>0){ BWbM$@'x
int j=stack[top--]; wlM"Zt
int i=stack[top--]; nM)q;9-ni
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pivotIndex=(i+j)/2; -|l^- Qf!
pivot=data[pivotIndex]; Q[+o\{ O
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SortUtil.swap(data,pivotIndex,j); ) DzbJ}
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file://partition (>E70|T
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r=j; Zljj
do{ `nxm<~-\
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); kAEm#oz=g
SortUtil.swap(data,l,r); xt%-<%s %f
} 4EO,9#0
while(l SortUtil.swap(data,l,r); U2DE"
SortUtil.swap(data,l,j); YmS}*>oz
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if((l-i)>THRESHOLD){ ]&')#YO
stack[++top]=i; c:/H}2/C
stack[++top]=l-1; bk**% ]
} =c-,uW11[
if((j-l)>THRESHOLD){ 1?6;Oc^
stack[++top]=l+1; <3wfY
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stack[++top]=j; i U^tv_1
} <4gT8kQ$x
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} ;BsPms@U
file://new InsertSort().sort(data); >&|C
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insertSort(data); _7AR2
} MVGznf?
/** 5/:BtlFx
* @param data rI\G&OqpP
*/ 6d RxfbL
private void insertSort(int[] data) { 6w
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int temp; h|_E>6d)
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Sc!{
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} qjsS2,wM
} ;'.[h*u~<
} 0u]!C"VX
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} 3aL8 gE
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归并排序: ltKUpRE\?
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package org.rut.util.algorithm.support; DA5kox&cU
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import org.rut.util.algorithm.SortUtil; `g2DN#q[0
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/** H5f>Q0jq
* @author treeroot bp06xHMu
* @since 2006-2-2 ohFUy}y
* @version 1.0 H]LH~l
*/ i )Hjmf3
public class MergeSort implements SortUtil.Sort{ >Cb[
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/* (non-Javadoc) fh0a "#L{
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) |fx*F}1
*/ 87Sqs1>cw
public void sort(int[] data) { nQ*9|v4
int[] temp=new int[data.length]; E,]G Ek
mergeSort(data,temp,0,data.length-1); 'WEypz
} <+1d'VQ2
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private void mergeSort(int[] data,int[] temp,int l,int r){ #S57SD
int mid=(l+r)/2; 2qY`*Y.2
if(l==r) return ; LV4]YC
mergeSort(data,temp,l,mid); }1A Brbc
mergeSort(data,temp,mid+1,r); 0] 'Bd`e
for(int i=l;i<=r;i++){ b<