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。 ZG?e%
插入排序: \Y`psSf+
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package org.rut.util.algorithm.support; 6R*eJICN
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import org.rut.util.algorithm.SortUtil; {R/e1-;
/** |XMWi/p
* @author treeroot ,!X:wY}dW
* @since 2006-2-2 ["e;8H[K)%
* @version 1.0 +11 oVW
*/ KUC%Da3
public class InsertSort implements SortUtil.Sort{ ..w$p-1
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/* (non-Javadoc) Hz=s)6$ey
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ":qS9vW
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public void sort(int[] data) { m-#]v}0A
int temp; #V$sb1u
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); VV sE]7P ]
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冒泡排序: DiZ;FHnaG?
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package org.rut.util.algorithm.support; J%
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import org.rut.util.algorithm.SortUtil; N34bB>_
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/** Sy<io@df
* @author treeroot G&`5o*).bb
* @since 2006-2-2 C
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* @version 1.0 @, AB2D
*/ rv<qze;?|
public class BubbleSort implements SortUtil.Sort{ Kzy9i/bL
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/* (non-Javadoc) ggpa!R
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ,Ek6X)|@
*/ 19RbIG/X
public void sort(int[] data) { %IDl+_j
int temp; (`u+(M!^
for(int i=0;i for(int j=data.length-1;j>i;j--){ nFe
if(data[j] SortUtil.swap(data,j,j-1); yo$A0Ti!w
} -y[y.#o
} "{3MXAFe
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选择排序: Z-M4J;J@}
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package org.rut.util.algorithm.support; 1_StgFu u
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import org.rut.util.algorithm.SortUtil; [4@@b"H
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/** Z=<D`
* @author treeroot s?fEorG
* @since 2006-2-2 +ZV?yR2yn
* @version 1.0 wo$ F_!3u
*/ 2z1r|?l
public class SelectionSort implements SortUtil.Sort { Ik@MIxLK
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/* woN
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* (non-Javadoc) ~q}]/0-m
* pW>.3pj
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :5jor Vu
*/ 23opaX5V=
public void sort(int[] data) { @V@<j)3P
int temp; 6;Mv)|FJF
for (int i = 0; i < data.length; i++) { p%/lP{
int lowIndex = i; :U]Pm:ivTU
for (int j = data.length - 1; j > i; j--) { <l>L8{-3
if (data[j] < data[lowIndex]) { E/D@;Ym18
lowIndex = j; jO`L:D/C
} vkW;qt}yO
} a)6?:nY$
SortUtil.swap(data,i,lowIndex); }VVtv1
} gEq6[G
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Shell排序: W#wC
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package org.rut.util.algorithm.support; u!b0<E
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import org.rut.util.algorithm.SortUtil; h(^[WSa
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/** "c![s%
* @author treeroot 9Z3Vf[n5\
* @since 2006-2-2 W=2]!%3#
* @version 1.0 ;)sC{ "Jb
*/ lg
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public class ShellSort implements SortUtil.Sort{ 8P&z@E{y
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/* (non-Javadoc) 0.1?hb|p5T
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 6*I=%
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*/ lH"VLO2l
public void sort(int[] data) { mk6>}z*
for(int i=data.length/2;i>2;i/=2){ <u
for(int j=0;j insertSort(data,j,i); ~Q=^YZgn8
} :K!L-*>A9
} |8{\j*3
insertSort(data,0,1); QR$m i1Vv\
} ,{Z!T5 |
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/** !{ORFd
* @param data ={{q_G\WD
* @param j 4=|oOIhgb
* @param i K=dG-+B~}
*/ &*~_ "WyU
private void insertSort(int[] data, int start, int inc) { ^n\g,
int temp; T3-/+4$0v
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 1NK,:m
} 3:b5#c?R-
} (]5gYi
} WTZuf9:
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} e^hI[LbNC
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快速排序: Nm3CeU
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package org.rut.util.algorithm.support; CR-2>,*a9
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import org.rut.util.algorithm.SortUtil; XZ/cREz^s
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/** X
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* @author treeroot iF"kR]ZL
* @since 2006-2-2 !'=<uU-
* @version 1.0 i"{znKz vD
*/ >}86#^F
public class QuickSort implements SortUtil.Sort{ j 2e|
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/* (non-Javadoc) U^OR\=G^
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Angt=q
*/ -V||1@
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public void sort(int[] data) { s6I/%R3
quickSort(data,0,data.length-1); ) =|8%IrB
} B>
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private void quickSort(int[] data,int i,int j){ kO,vHg$
int pivotIndex=(i+j)/2; :A,7D(H|
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SortUtil.swap(data,pivotIndex,j); kX:8sbZ##4
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int k=partition(data,i-1,j,data[j]); VQpwHzh
SortUtil.swap(data,k,j); ;GZ'Rb
if((k-i)>1) quickSort(data,i,k-1); @DyMq3Gt?&
if((j-k)>1) quickSort(data,k+1,j); g<i>252>
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} qnw8#!%I
/** (z%OK[
* @param data EL9JM}%0v
* @param i &"X1w $
* @param j ES[]A&tf
* @return S2$r 6T
*/ eak+8URo
private int partition(int[] data, int l, int r,int pivot) { g=S|lVQm
do{ ymA8`k5>@
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); ;oRgg'k<
SortUtil.swap(data,l,r); ABhQ7
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} p1,.f&(f
while(l SortUtil.swap(data,l,r); z-`4DlJUS
return l; 8|rlP
} 7*47mJyc
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改进后的快速排序: f7 zGz
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package org.rut.util.algorithm.support; ?O/!pUAu
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import org.rut.util.algorithm.SortUtil; u:\DqdlU`
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/** oF5~|&C
* @author treeroot 2!}rHw
* @since 2006-2-2 =M34
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* @version 1.0 c)17[9"
*/ 8' +I8J0l
public class ImprovedQuickSort implements SortUtil.Sort { AJt4I
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private static int MAX_STACK_SIZE=4096; {7 nz:f
private static int THRESHOLD=10; (EOYJHZB!
/* (non-Javadoc) ] U[4r9V
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) oo!JAv}~
*/ }zHG]k,j
public void sort(int[] data) { {OW.^UIq^
int[] stack=new int[MAX_STACK_SIZE]; BE," lX
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int top=-1; CNyV6jb
int pivot; `qj24ehc
int pivotIndex,l,r; c]/&xRd
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stack[++top]=0; 4G=KyRKh
stack[++top]=data.length-1; rNX]tp{j
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while(top>0){ FeuqqZ\=&
int j=stack[top--]; <0H^2ekd
int i=stack[top--]; UQ+!P<>w
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pivotIndex=(i+j)/2; >/DlxYG?
pivot=data[pivotIndex]; jftf]n&Z(q
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SortUtil.swap(data,pivotIndex,j); -Deqlaf(
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file://partition Z=>#|pW,)
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do{ of?'FrU
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); O\)rp!i
SortUtil.swap(data,l,r); _.3O(? p,
} @#&y
while(l SortUtil.swap(data,l,r); PkxhR;4
SortUtil.swap(data,l,j); kY`L[1G$
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if((l-i)>THRESHOLD){ @ (LEuYq}
stack[++top]=i; I?%iJ%
stack[++top]=l-1; :/FT>UCL
} KJN{p~Q
if((j-l)>THRESHOLD){ <LA!L
stack[++top]=l+1; 8zk?:?8%{
stack[++top]=j; GJ4R f%
} {/SLDyf%Z
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} /l$>W<}@
file://new InsertSort().sort(data); <GRrw
insertSort(data); sc
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} @b"J FB|
/**
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* @param data v6`TbIq%
*/ 5t~p99#?
private void insertSort(int[] data) { fI1,L"
int temp; QIZbAnn_
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); %(y0,?*
} V?"SrXN>
} CP!>V:w%9!
} $M 1/74
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} S,~DA3
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归并排序: ;OynkZs)
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package org.rut.util.algorithm.support; yYM_
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import org.rut.util.algorithm.SortUtil; |VRzIA4M\
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/** z}:|is)?
* @author treeroot WbW@V_rr
* @since 2006-2-2 c3$h-M(jVJ
* @version 1.0 b 5X~^L
*/ %d/Pc4gfc
public class MergeSort implements SortUtil.Sort{ NWq>Z!x`
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/* (non-Javadoc) u!VAAX
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) WfDpeXdO
*/ b;XUv4~V
public void sort(int[] data) { {2Jn#&Z29
int[] temp=new int[data.length]; ToWtltCD
mergeSort(data,temp,0,data.length-1); RiX~YLeM
} 5s'oVO*hW
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private void mergeSort(int[] data,int[] temp,int l,int r){ "\9!9U#!
int mid=(l+r)/2; bEJz>oyW"
if(l==r) return ; DL0i
mergeSort(data,temp,l,mid); b=Y:`&o=[
mergeSort(data,temp,mid+1,r); u'BuZF
for(int i=l;i<=r;i++){ &