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。 wr[,
插入排序: +s- lCz
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package org.rut.util.algorithm.support; L#E]
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import org.rut.util.algorithm.SortUtil; xx[9~z=d
/** ]]Cb$$Td
* @author treeroot )+:EJH~
* @since 2006-2-2 fQ#l3@in
* @version 1.0 S30?VG9U0f
*/ uc;8 K,[t
public class InsertSort implements SortUtil.Sort{ ?>I;34tL(
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/* (non-Javadoc) ;W>k@L
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) .zi_[
*/ "?V0$-DR
public void sort(int[] data) { {phNds%
int temp; XUz3*rfs
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); SHe49!RA'{
} 9I6a"PGDb
} !\7!3$w'8,
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} M7pOLP_1jB
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冒泡排序: [ucpd
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package org.rut.util.algorithm.support; vX/T3WV
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import org.rut.util.algorithm.SortUtil; uG,5BV .M
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/** }H^+A77v
* @author treeroot W"k"IvTW}
* @since 2006-2-2 &L=suDe
* @version 1.0 |olA9mp|]
*/ Gefne[
public class BubbleSort implements SortUtil.Sort{ E|iQc8gr&
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/* (non-Javadoc) 8WXQOo8
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ]n6#VTz*
*/ ~E17L]ete
public void sort(int[] data) { nLXlU*ES
int temp; JMC. w!
for(int i=0;i for(int j=data.length-1;j>i;j--){ s~^5kgPA
if(data[j] SortUtil.swap(data,j,j-1); qLD
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} 6^]+[q}3
} EJMM9(DQ7
} H?yK~bGQ
} k\5c|Wq|g
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} C5o#i*|
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选择排序: +^60T$
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package org.rut.util.algorithm.support; =$'6(aDH
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import org.rut.util.algorithm.SortUtil; D4eDHq
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/** 6'k<+IR
* @author treeroot ,wQ5.U,
* @since 2006-2-2 %O|iE M
* @version 1.0 em%4Ap
*/ +}Dw3;W}m
public class SelectionSort implements SortUtil.Sort { ~!B\(@GU
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/* j'Fpjt"&=
* (non-Javadoc) P)Jgs
* - YEZ]:"
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) G/)O@Ugp
*/ o_izl\
public void sort(int[] data) { Ua:}V n&!
int temp; 3Z>Ux3[
for (int i = 0; i < data.length; i++) { |mZxfI
int lowIndex = i; p$S*dr
for (int j = data.length - 1; j > i; j--) { Snj'y,p[
if (data[j] < data[lowIndex]) { zfJT,h-{
lowIndex = j; x]}^v#
}
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} is?{MJZ_
SortUtil.swap(data,i,lowIndex); 4>wP7`/+y
} 7r6.n61F
} "{A(x
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Shell排序: wW Lj?;bx
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package org.rut.util.algorithm.support; Ki;*u_4{
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import org.rut.util.algorithm.SortUtil; nGC/R&
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/** `aOFs+<)
* @author treeroot xVw9v6@`h
* @since 2006-2-2 akmkyrz '&
* @version 1.0 =O~_Q-
*/ f[]dfLS"W
public class ShellSort implements SortUtil.Sort{ C"y(5U)d
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/* (non-Javadoc) ]}V<*f
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -M\<nx
*/ l5~os>
public void sort(int[] data) { 4j*
for(int i=data.length/2;i>2;i/=2){ !Mx$A$Oj>
for(int j=0;j insertSort(data,j,i); Q-(zwAaE
} pJ>P[
} F/]2G^-
insertSort(data,0,1); |NlO7aQ>2H
} 91/Q9xY
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/** ]>!K3kB
* @param data ::`HQ@^
* @param j <]ox;-56
* @param i 8C40%q..
*/ rm7ANMB:
private void insertSort(int[] data, int start, int inc) { IYv`IS"
int temp; _YRFet[,m
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); )+#` CIv
} @@f"%2ZR[
} GblA9F7
} t5Sy V:fP
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} 6XxvvMA97
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快速排序: p%ki>p )E|
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package org.rut.util.algorithm.support; ./Xz}<($8
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import org.rut.util.algorithm.SortUtil; &C_j\7Dq
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/** J0WxR&%a)
* @author treeroot 70?\ugxA
* @since 2006-2-2 :
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* @version 1.0 ,)cM3nu
*/ 38B2|x
public class QuickSort implements SortUtil.Sort{ [jQp~&nY
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/* (non-Javadoc) ,>a&"V^k
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qz_7%c]K[
*/ LENq_@$
public void sort(int[] data) { [>I<#_^~
quickSort(data,0,data.length-1); 0D.Mke )
} ; nfdGB
private void quickSort(int[] data,int i,int j){ h8q[1"a:
int pivotIndex=(i+j)/2; ~7w"nIs<c
file://swap 8Al{+gx@?
SortUtil.swap(data,pivotIndex,j); ;+R&}[9,A)
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int k=partition(data,i-1,j,data[j]); 'ZF{R3Xu
SortUtil.swap(data,k,j); U+jOTq8 M
if((k-i)>1) quickSort(data,i,k-1); Evq IcZ
if((j-k)>1) quickSort(data,k+1,j); QO:!p5^:
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} HVCe;eI
/** x;KOqfawv
* @param data )AtD}HEv
* @param i oSKXt}sh
* @param j 9rX&uP)j^#
* @return e2Pcm_Ahv*
*/ R%WCH?B<}
private int partition(int[] data, int l, int r,int pivot) { net@j#}j-
do{ %IA\pSE
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Vm(y7}Aq{
SortUtil.swap(data,l,r); $rBq"u=,0+
} Et_bH%0
while(l SortUtil.swap(data,l,r); |^I0dR/w:
return l; m9WDT
} K7B/s9/xs
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} tY<4%~%X
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改进后的快速排序: UhWNl]Z
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package org.rut.util.algorithm.support; i#/Jr=
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import org.rut.util.algorithm.SortUtil; f*% D$Mqg
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/** {6|G@""O
* @author treeroot 4[r0G+
* @since 2006-2-2 R?|.pq/Ln
* @version 1.0 b5I I/Y
*/ 3S@7]Pg
public class ImprovedQuickSort implements SortUtil.Sort { ~
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private static int MAX_STACK_SIZE=4096; }OR@~V{Gj
private static int THRESHOLD=10; 6I4\q.^qw
/* (non-Javadoc) ::lKL
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 286;=rN]*
*/ BO;tCEV?
public void sort(int[] data) { 6:5I26
int[] stack=new int[MAX_STACK_SIZE]; dr}`H,X"3
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int top=-1; _ QI\
int pivot; l`{\"#4
int pivotIndex,l,r; }O5i/#.lR
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stack[++top]=0; sN*N&XG
stack[++top]=data.length-1; zpZm&WC
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while(top>0){ ,j{,h_Op
int j=stack[top--]; YeL#jtC
int i=stack[top--]; t;Sb/ 3
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pivotIndex=(i+j)/2; |Q6.29 9
pivot=data[pivotIndex]; _$YkM,
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SortUtil.swap(data,pivotIndex,j); HY*Kb+[
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file://partition mt{nm[D!Xp
l=i-1; u@UMP@"#
r=j; VcO0sa f`
do{ cWsNr'MS*
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); Y0@"fU35
SortUtil.swap(data,l,r); C.yQ=\U2
} b\kdKVh&
while(l SortUtil.swap(data,l,r); ?m}s4a
SortUtil.swap(data,l,j); 4y?n
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if((l-i)>THRESHOLD){ OJuG~euy
stack[++top]=i; q4:o#K#
stack[++top]=l-1; nbD*x|
} mbTEp*H
if((j-l)>THRESHOLD){ fI}to&qk
stack[++top]=l+1; ?%-DfCS
stack[++top]=j; E)5\i-n
} |O|V-f{l
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} t;}|tgC
file://new InsertSort().sort(data); g0=z&2Q[_)
insertSort(data); N1}sHyVq7
} |O\s|H
/** kW Ml
* @param data 3tIVXtUCUk
*/ 30#s aGV
private void insertSort(int[] data) { d9fC<Tp
int temp; x:NY\._
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); pk$l+sNZ=
} JxdDC^> 0
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} 2/\r)$
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} A@!qv#'
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归并排序: ar!R|zmf
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package org.rut.util.algorithm.support; RNEp4x
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import org.rut.util.algorithm.SortUtil; ,F8 Yn5h
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/** 17%,7P9pg
* @author treeroot FF`T\&u
* @since 2006-2-2 P:K5",)
* @version 1.0 mA}TJz
*/ M>xK+q?O
public class MergeSort implements SortUtil.Sort{ G#q@v(_b
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/* (non-Javadoc) KEo,m
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #?aPisV
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*/ 6EoMt@7g
public void sort(int[] data) { E!)xj.aS$
int[] temp=new int[data.length]; zlSNfgO
mergeSort(data,temp,0,data.length-1); ~OYiq}g
} Af~$TyX
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private void mergeSort(int[] data,int[] temp,int l,int r){ X6w6%fzOH>
int mid=(l+r)/2; CAig]=2'
if(l==r) return ; y4
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mergeSort(data,temp,l,mid); d`=MgHz
mergeSort(data,temp,mid+1,r); ~k-y &<UR
for(int i=l;i<=r;i++){ $ZhFh{DQ.
temp=data; 2. NN8PPD"
} L^/5ux
int i1=l; u
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int i2=mid+1; gS!:+G%
for(int cur=l;cur<=r;cur++){ a_^\=&?'
if(i1==mid+1) kr^P6}'
data[cur]=temp[i2++]; fZGX}T<)p-
else if(i2>r) >NGj
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