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。 Rh6CV
插入排序:
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package org.rut.util.algorithm.support; Ag:/iB]
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import org.rut.util.algorithm.SortUtil; 7lF;(l^Z>}
/** H&*&n}vh5y
* @author treeroot w-)JCdS6Tb
* @since 2006-2-2 "dndhoMq
* @version 1.0 +K'YVB
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*/ |QbCFihn
public class InsertSort implements SortUtil.Sort{ #gWok'ZcR
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/* (non-Javadoc) 0[
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )2W7>PY
*/ `r=^{Y
public void sort(int[] data) { R=R]0
int temp; 9b-4BON{P
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); g1F9IB42@<
} UjunIKX+
} wH=7pS"s
} TGG=9a]m
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} ||cI~qg
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冒泡排序: (NnE\2
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package org.rut.util.algorithm.support; IwbV+mWQ
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import org.rut.util.algorithm.SortUtil; a&mL Dh/
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/** b4KNIP7E
* @author treeroot *6_>/!ywI
* @since 2006-2-2 W>x.*K
* @version 1.0 [ryII hQ
*/ W1M Bk[:Q
public class BubbleSort implements SortUtil.Sort{ T9}dgf
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/* (non-Javadoc) }DvT6
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )h(=X&(d
*/ ij_5=4aZ-
public void sort(int[] data) { ffOV7Dxy
int temp; >"zN`
for(int i=0;i for(int j=data.length-1;j>i;j--){ &u2m6 r>W
if(data[j] SortUtil.swap(data,j,j-1); A}uWy^w
} ,4,./wIq
} "[_gRe*2
} HR'F
} [m<8SOMG(
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} wUS w9xg
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选择排序: 6%c]{eTd9
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package org.rut.util.algorithm.support; >T14
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import org.rut.util.algorithm.SortUtil; (
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/** p@YbIn
* @author treeroot 1R.6Xer
* @since 2006-2-2 =@;\9j
* @version 1.0 0e'@Xo2e
*/ 2) Q/cH\g
public class SelectionSort implements SortUtil.Sort { NdI~1kemr
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/* ph7]*W-
* (non-Javadoc) %$R]NL|
* hus9Zv4
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V$MMK
*/ NF*Z<$ '%
public void sort(int[] data) { [-=y*lx%g
int temp; cEPqcy
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for (int i = 0; i < data.length; i++) { W_]onq6
int lowIndex = i; 2J6(TrQ
for (int j = data.length - 1; j > i; j--) { $)jf
if (data[j] < data[lowIndex]) { s";9G^:
lowIndex = j; Bh q]h
} w"h3e
} `Y<FR
SortUtil.swap(data,i,lowIndex); JjH141 n%D
} }}d,xI
} lM%3 ?~?Q&
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Shell排序: y?xFF9W@H
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package org.rut.util.algorithm.support; -=4:qQEw
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import org.rut.util.algorithm.SortUtil; eh6=-
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/** 89%#;C
* @author treeroot :>m67Zq
* @since 2006-2-2 Zopi;O J
* @version 1.0 Sk%*Zo{|
*/ Uf\U~wM<
public class ShellSort implements SortUtil.Sort{ lemUUl(^
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/* (non-Javadoc) t``q_!s}F
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Gxh1wqLR
*/ JR4fJG
public void sort(int[] data) { h9l 6AnbJ
for(int i=data.length/2;i>2;i/=2){ 2$yNryd
for(int j=0;j insertSort(data,j,i); yo!Y%9
} )s>R~7
} Pbl#ieZM
insertSort(data,0,1); yey]#M[y
} ")eY{C
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/** 5/m}v'S%
* @param data Fz@9
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* @param j 1R7w
* @param i =r>u'wRQ
*/ v1\/ dQK
private void insertSort(int[] data, int start, int inc) { Ew*SA
int temp; =nE^zY2m%
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); ({WV<T&
} F0/!+ho
} F%G} >xn
} Z6IWQo,)Rh
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} 5O"$'iL
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快速排序: b-HELS`nX
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package org.rut.util.algorithm.support; <^Jdl.G
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import org.rut.util.algorithm.SortUtil; cng166}1A
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/** V3q[$~9
* @author treeroot g,s^qW0vds
* @since 2006-2-2 KLgg([
* @version 1.0 YU/?AQg
*/ ].Xh=7&2{
public class QuickSort implements SortUtil.Sort{ l9f%?<2D
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/* (non-Javadoc) K#xL-
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (ty&$
*/ qpV"ii
public void sort(int[] data) { [Z;ei1l
quickSort(data,0,data.length-1); e@7UL|12
} j?1wP6/NP
private void quickSort(int[] data,int i,int j){
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int pivotIndex=(i+j)/2; 40} 7O<9*
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SortUtil.swap(data,pivotIndex,j); -lm)xpp1
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int k=partition(data,i-1,j,data[j]); ;2[),k
SortUtil.swap(data,k,j); XvVi)`8!u
if((k-i)>1) quickSort(data,i,k-1); UHR%0ae
if((j-k)>1) quickSort(data,k+1,j); P=R-1V
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} |!{ Y:f;
/** lN*beOj
* @param data o+Fm+5t;
* @param i fNz(z\
* @param j ehTv@2b
* @return "EwzuM8f
*/ m"!Q5[
private int partition(int[] data, int l, int r,int pivot) { h.q9p!
do{ /QT>"
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); q7<=1r+
SortUtil.swap(data,l,r); *Sps^Wl
} Wg,7k9I
while(l SortUtil.swap(data,l,r); #n]K$k>
return l; bjAI7B8As
} 8Oz9 UcG
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} J&&)%&h'I
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改进后的快速排序: xjD."q
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package org.rut.util.algorithm.support; WyRSy-{U(}
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import org.rut.util.algorithm.SortUtil; Mfnfp{.)
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/** '2
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* @author treeroot sf/m@425
* @since 2006-2-2 d0R;|p''Z
* @version 1.0 +;4;~>Y
*/ L/In~'*-
public class ImprovedQuickSort implements SortUtil.Sort { +s^nT{B@\
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private static int MAX_STACK_SIZE=4096; HJBGxyw
private static int THRESHOLD=10; gu:vf/
/* (non-Javadoc) Y>atJ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) RA?_j$
*/ Jg)( F|>o
public void sort(int[] data) { 8!YQ9T [
int[] stack=new int[MAX_STACK_SIZE]; *6eJmbFG
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int top=-1; K1o>>388G
int pivot; L9XfR$7,z
int pivotIndex,l,r; ]_|'N7J
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stack[++top]=0; Pm%5c\ef
stack[++top]=data.length-1; { ^^5FE)%
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while(top>0){ y5F"JjQAa
int j=stack[top--]; 'IFA>}e7W
int i=stack[top--]; !3iZa*
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pivotIndex=(i+j)/2; 5gV,^[E-z
pivot=data[pivotIndex]; &-{%G=5~e%
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SortUtil.swap(data,pivotIndex,j); A FBH(ms't
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do{ ~JNE]mg
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); vH-|#x~
SortUtil.swap(data,l,r); U;TS7A3
} ;Z`a[\i':
while(l SortUtil.swap(data,l,r); +H?g9v40
SortUtil.swap(data,l,j); [s`B0V`04
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if((l-i)>THRESHOLD){ M$Ui=GGq
stack[++top]=i; Dt> tTU 6
stack[++top]=l-1; n#Dy
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} SXYwhID=
if((j-l)>THRESHOLD){ AZE%fOG<i
stack[++top]=l+1; 7w" !"W#
stack[++top]=j; H ?9Bo!
} !/tV}.*
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} YpXd5;'
file://new InsertSort().sort(data); lP)n$?u
insertSort(data); tmoCy0qWz
} gY[G>D=
/** 7P}l^WX
* @param data ;di.U,
*/ _Dqi#0#40p
private void insertSort(int[] data) { 9eq)WI/
int temp; |v@_~HV
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); g.Qn,l]X/p
} W`JI/
} CQ<