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。 z&Kh$ $)[
插入排序: <0h,{28
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package org.rut.util.algorithm.support; 7]}2`^9
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import org.rut.util.algorithm.SortUtil; tbm/gOBw
/** QNcbl8@
* @author treeroot +YFA Zv7`
* @since 2006-2-2 &`LR{7m
* @version 1.0 7W]0bJK+E
*/ ]ME2V
public class InsertSort implements SortUtil.Sort{ V/@7XAt
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/* (non-Javadoc) o+%($p
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p`=v$_]?(
*/ b.#0{*/G
public void sort(int[] data) { ;/R \!E
int temp; M/5+AsT
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); m2j]wUh"
} #!>QXiyR
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冒泡排序: ypy
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package org.rut.util.algorithm.support; ur|
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import org.rut.util.algorithm.SortUtil; 1F]jy
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/** .qfU^AHA
* @author treeroot `s|^
* @since 2006-2-2 hEk0MY
* @version 1.0 4sM9~zC5
*/ 3ahbv%y
public class BubbleSort implements SortUtil.Sort{ MnBHm!]&
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/* (non-Javadoc) & oj$h
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <gLq?~e|A
*/ eEZZ0NNe;
public void sort(int[] data) { `+]e}*7$f
int temp; =`/GBT$
for(int i=0;i for(int j=data.length-1;j>i;j--){ FC
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if(data[j] SortUtil.swap(data,j,j-1); YtFH@M
} c1}i|7/XSi
} W;^6=(&xn
} z"$huE>P6
} (RafidiH
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选择排序: 9ohO-t$XkY
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package org.rut.util.algorithm.support; &.chqP(|
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import org.rut.util.algorithm.SortUtil; Ox^VU2K;&.
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/** 5z@QAQ
* @author treeroot h{.x:pPXy
* @since 2006-2-2 ey ?paT
* @version 1.0 l*]nvd_
*/ |3dIq=~1"Y
public class SelectionSort implements SortUtil.Sort { t6! B
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/* %Zi}sm1t
* (non-Javadoc) x>[f+Tc
* #/o1D^
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9YVr9BM'K
*/ }ZkGH}K_}
public void sort(int[] data) { Hr!%L*h?
int temp; TykY> cl
for (int i = 0; i < data.length; i++) { tW=oAy
int lowIndex = i; *#;
for (int j = data.length - 1; j > i; j--) { ^#&PTq>
if (data[j] < data[lowIndex]) { z2god 1"
lowIndex = j; ?X3uPj9if
} `(VVb@:o
} WS2@;
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SortUtil.swap(data,i,lowIndex); z]n&,q,5g
} .y2np
} O+PRP"$g"
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Shell排序: != u
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package org.rut.util.algorithm.support; W0s3nio
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import org.rut.util.algorithm.SortUtil; Q)ZbnR2Z8
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/** C:{&cIFrPe
* @author treeroot *>J45U(6:
* @since 2006-2-2 g <5G#
* @version 1.0 %nT &
*/ YA*E93 J0
public class ShellSort implements SortUtil.Sort{ G:Cgq\+R
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/* (non-Javadoc) apd"p{
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) GdtR /1
*/ _{48s8V
public void sort(int[] data) { 8e}8@[h
for(int i=data.length/2;i>2;i/=2){ zZI7p[A[3
for(int j=0;j insertSort(data,j,i); f<l.%B
} (m&''yaH
} :my@Oxx4@
insertSort(data,0,1); cDqj&:$e
} V(<(k,8=
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/** Su/}OS\R
* @param data THHA~;00YN
* @param j w$FN(BfA
* @param i ~PiCA
*/ ?PDrj/: *
private void insertSort(int[] data, int start, int inc) { &ZAc3@l[c
int temp; "MU)8$d
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); .8/W_iC92
} O`FuXB(t
} AW/)R"+
} "7_qB8\
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} 'QxPQcU
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快速排序: .9KW|(uW
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package org.rut.util.algorithm.support;
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import org.rut.util.algorithm.SortUtil; bZi;jl
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/** iYl$25k/1
* @author treeroot GN
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* @since 2006-2-2 qwDoYyyu
* @version 1.0 62{[)jt{
*/ .}DL%E`n
public class QuickSort implements SortUtil.Sort{ ~.f[K{h8
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/* (non-Javadoc) eKek~U&
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) "i/3m'<2
*/ s&~.";b
public void sort(int[] data) { d&5GkD.P
quickSort(data,0,data.length-1); B)L;ja
} Dd$CN&Ca
private void quickSort(int[] data,int i,int j){ kU$M 8J.
int pivotIndex=(i+j)/2; j aq/]I7
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SortUtil.swap(data,pivotIndex,j); qr[+^*Ha
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int k=partition(data,i-1,j,data[j]); R22P
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SortUtil.swap(data,k,j); %QKRl5RM-
if((k-i)>1) quickSort(data,i,k-1); "f3KE=cUm
if((j-k)>1) quickSort(data,k+1,j); ?ne!LDlE|
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} Mv^G%zg2
/** ?jRyw(Q
* @param data ?UV^6
* @param i J t,7S4JL
* @param j I0]"o#LjT
* @return }c-tvK1g
*/ ?L~Z]+-
private int partition(int[] data, int l, int r,int pivot) { 1q(o3%
do{ \~`qE<Q/
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 0&|,HK
SortUtil.swap(data,l,r); "J (.dg]"
} *) ?Fo
while(l SortUtil.swap(data,l,r); ?5#=Mh#
return l; 7+^4v(s
} b1`(f"&l
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改进后的快速排序: O`W&`B(*k
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package org.rut.util.algorithm.support; 1F_ 1bAh$
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import org.rut.util.algorithm.SortUtil; %xWscA%^u
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/** hSyA;*)U
* @author treeroot U?:<clh
* @since 2006-2-2 IRW%*W#
* @version 1.0 J((.zLvz
*/ M=aWL!nJ
public class ImprovedQuickSort implements SortUtil.Sort { >J[Wd<~t
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private static int MAX_STACK_SIZE=4096; >o"3:/3
private static int THRESHOLD=10; Ood'kAH1B
/* (non-Javadoc) 8FY/57.W
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) OY/sCx+c
*/ L?5OWVX!v
public void sort(int[] data) { YOHYXhc{S
int[] stack=new int[MAX_STACK_SIZE]; a>{b'X^LV
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int top=-1; ]Ak@!&hyak
int pivot; 'hM?J*m
int pivotIndex,l,r; _F1{<" 4
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stack[++top]=0; Ghgo"-,#
stack[++top]=data.length-1; ii:h
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