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。 a&2x;diF
插入排序: n@R/zy
p:$kX9mT&
package org.rut.util.algorithm.support; s-(c-E09
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import org.rut.util.algorithm.SortUtil; D|<_96_m
/** ZR%$f-
* @author treeroot /ueOc<[8"
* @since 2006-2-2 (UhJ Pco"
* @version 1.0 }EHL
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*/ BzH0"xq^
public class InsertSort implements SortUtil.Sort{ _TmKn!Jw
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/* (non-Javadoc) J>G'H)
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) fv+d3s?h
*/ X2 ;72
public void sort(int[] data) { m\CU,9;;(
int temp; 6R8>w,
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); :;hX$Qz
} 1Z;cb0:
} =sv?))b`
} g:xg ~H2
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} <n2'm
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冒泡排序: qmGHuQVe
AS:k&t
package org.rut.util.algorithm.support; f<$*,P
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import org.rut.util.algorithm.SortUtil; oOLA&N-A~
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/** 0bJT0_
* @author treeroot $bF+J8%D
* @since 2006-2-2 \6.dGKK
* @version 1.0 \o3s&{+y,
*/ "'+C%
public class BubbleSort implements SortUtil.Sort{ "X._:||8
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/* (non-Javadoc) y!:vX6l
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) zFipuG02
*/ \L$]2"/v-
public void sort(int[] data) { fk6=;{
int temp; 9!_LsQ\)
for(int i=0;i for(int j=data.length-1;j>i;j--){ UY,u-E"
if(data[j] SortUtil.swap(data,j,j-1); bA$ElKT
} 23K#9!3
} UHTxNK@}
} ]5:[6;wS
} :RZ'_5P[If
"\rO}(gC;`
} {M=B5-
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选择排序: Q>;Aq!mr=
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package org.rut.util.algorithm.support; 4T"L#o1
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import org.rut.util.algorithm.SortUtil; )ezkp%I5D
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/** vl}}h%BC
* @author treeroot 53pfo:1'
* @since 2006-2-2 Xs"d+dc
* @version 1.0 tQyQ+1
*/ WLh!L='{BK
public class SelectionSort implements SortUtil.Sort {
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/* KyDd( 'i
* (non-Javadoc) q3-cWfU
* }TuMMO4+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 1rue+GL
*/ CN-4FI)1D9
public void sort(int[] data) { ;Z;` BGZJ
int temp; Eg&Q,dH[
for (int i = 0; i < data.length; i++) { 4\ )WMP
int lowIndex = i; MIZ!+[At
for (int j = data.length - 1; j > i; j--) { iWUxB28
if (data[j] < data[lowIndex]) { e$Y7V
lowIndex = j; RLLL=?W@
} tpeMq-
} {- MhhRa5
SortUtil.swap(data,i,lowIndex); @Xh8kvc81
} ,O^kZ}b
} -)bu&
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} ;F71f#iY
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Shell排序: ~j!|(a7
6 W$m,3Dg
package org.rut.util.algorithm.support; c^&:':Z%'
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import org.rut.util.algorithm.SortUtil; _x`:Ne?
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/** K&=6DvfR
* @author treeroot l#w0-n%S
* @since 2006-2-2 ogdAJw6 9
* @version 1.0 3z#fFP@E
*/ eSMno_Gt3
public class ShellSort implements SortUtil.Sort{ ^;\6ju2
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/* (non-Javadoc) +_f813$C
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])
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*/ 5$$]ZMof
public void sort(int[] data) { s <$*A;t
for(int i=data.length/2;i>2;i/=2){ qe0ZM-C_
for(int j=0;j insertSort(data,j,i); '=(yh{W
} )D]LPCd[
} T0\[":
A
insertSort(data,0,1); #\z"k<{*
} iq8Hq)I]
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/** 1'k,P;s
* @param data =)Goip
* @param j ::/vDUDc
* @param i dGR #l)
*/ IY(;:#l
private void insertSort(int[] data, int start, int inc) { SQuW`EHBgs
int temp; t +CU
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); IueI7A
} x_4{MD^%
} n!NA}Oa
} g%4=T~
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} [ID#PUle
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快速排序: 'w\Gd7E
gaL.5_1
package org.rut.util.algorithm.support; {UhpN"'"n
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import org.rut.util.algorithm.SortUtil; -N2m|%B
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/** ZQ#AE VI,
* @author treeroot .8CfCRq
* @since 2006-2-2 q&wv{
* @version 1.0 ~~WX#Od*$
*/ %B Rll
public class QuickSort implements SortUtil.Sort{ 6b4]dvl_
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/* (non-Javadoc) %Vsg4DRy
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?T[K{t;~jo
*/ L i`OaP$
public void sort(int[] data) { `{J(S'a`
quickSort(data,0,data.length-1); >9Y0t^Fl
} _#o75*42tT
private void quickSort(int[] data,int i,int j){ r9^~I
int pivotIndex=(i+j)/2; TIP H#W:v
file://swap jouT9~[L'
SortUtil.swap(data,pivotIndex,j); T\T>\&nY+|
7I {rhA
int k=partition(data,i-1,j,data[j]); CH=k=)() ]
SortUtil.swap(data,k,j); 7{
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if((k-i)>1) quickSort(data,i,k-1); V%J_iY/BUb
if((j-k)>1) quickSort(data,k+1,j); #w)D ml
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} 2fdC @V
/** 0av2w5>af
* @param data ]LSlo593
* @param i 0 9*?'^s4
* @param j TJ(vq] |&
* @return Hb9r.;r<EW
*/ 'jU ;.vZex
private int partition(int[] data, int l, int r,int pivot) { v;R+{K87
do{ 0 aiE0b9c
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); T7XbbU
SortUtil.swap(data,l,r); }cI _$
} A4VVy~sd
while(l SortUtil.swap(data,l,r); zLV k7u{e
return l; :}fIu?hCA
} DYL \=ya1
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} ",Fqpu&M
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2
改进后的快速排序: Csx??T_>r
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package org.rut.util.algorithm.support; [~IFg~*,
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import org.rut.util.algorithm.SortUtil; 1`EkN0iZ
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/** @)S d3xw[
* @author treeroot n'Z5rXg
* @since 2006-2-2 |K$EULzz
* @version 1.0 ] Y6y ]u
*/ 'xc=N
public class ImprovedQuickSort implements SortUtil.Sort { o7s<G8;?
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private static int MAX_STACK_SIZE=4096; v@]\
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private static int THRESHOLD=10; QU^?a~r
/* (non-Javadoc) w<=-n;2
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) se]QEd7]7
*/ ln=:E$jX
public void sort(int[] data) { YU%U
int[] stack=new int[MAX_STACK_SIZE]; KH76Vts
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int top=-1; ,[ M^rv
int pivot; e5.sqft
int pivotIndex,l,r; FKu^{'Y6E0
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stack[++top]=0; ST^{?Q
stack[++top]=data.length-1; o^&nkR
6ALUd^
while(top>0){ AG<TY<nqL
int j=stack[top--]; W!WeYV}kb
int i=stack[top--]; 1jQlwT(:
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pivotIndex=(i+j)/2; 's6hCs&|NV
pivot=data[pivotIndex]; 23[X mBf
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SortUtil.swap(data,pivotIndex,j); 1c03<(FCd
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file://partition Lk]/{t0
l=i-1; 0@PI=JZ%
r=j; 5QJFNE
do{ BpZ17"\z
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); @k,}>Tk
SortUtil.swap(data,l,r); A**PGy.Ni
} I=Xj;\b
while(l SortUtil.swap(data,l,r); ^B7C8YP
SortUtil.swap(data,l,j); P0^7hSo
cvl1X"
if((l-i)>THRESHOLD){ 9jTm g%
stack[++top]=i; 5!^DKyw:
stack[++top]=l-1; RI64QD
} 1q;r4$n
if((j-l)>THRESHOLD){ l>:\%
ol
stack[++top]=l+1; wZ =*ejo
stack[++top]=j; Y!L<&
sl
} G .k\N(l
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} y@Q?
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file://new InsertSort().sort(data); naB`@
insertSort(data); =5Auk5&
} Hg;; >
/** AIa#t#8${
* @param data (dVrGa54
*/ :#zv,U&OC
private void insertSort(int[] data) { ?3+>% bO
int temp; 0I@Cx{$
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ac??lHtH9
} `SSUQ#@
} rCdf*;
} bv8GJ #
T hLR<\
} !`F^LXGA
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归并排序: hz_F^gF
j>t*k!db
package org.rut.util.algorithm.support; bB|P`lL
o|0QstSCl
import org.rut.util.algorithm.SortUtil; 9F"Q2^l'
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/** a2N4Jg@
* @author treeroot @ag*zl
* @since 2006-2-2 @n:.D9
* @version 1.0 D&r2k
9
*/ J=qPc}+
public class MergeSort implements SortUtil.Sort{ bP ,_H
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/* (non-Javadoc) $1$T2'C~+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;BMm47<
*/ iNAaTU
public void sort(int[] data) { HfgK0wIi
int[] temp=new int[data.length]; =q-HR+
mergeSort(data,temp,0,data.length-1); Rr>h8Ni <
} hPHrq{YZ
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private void mergeSort(int[] data,int[] temp,int l,int r){ !HP/`R
int mid=(l+r)/2; P?P))UB5
if(l==r) return ; Ho:X.Z9A^
mergeSort(data,temp,l,mid); !1\jD
mergeSort(data,temp,mid+1,r); DfQD!}=
for(int i=l;i<=r;i++){ az2CFd^M
temp=data; 8fwM)DKS
} .xp|w^
int i1=l; %d\|a~p:
int i2=mid+1; H\Jpw
for(int cur=l;cur<=r;cur++){ IN%04~=H
if(i1==mid+1) `e!hT@Xxa
data[cur]=temp[i2++]; 2dF:;k k
else if(i2>r) N%.DjH
data[cur]=temp[i1++]; 5{&<X.jv
else if(temp[i1] data[cur]=temp[i1++]; TGJ\f
else zUhJr$N$
data[cur]=temp[i2++]; WrGz`
} f{Dc R"
} MYb^ILz H3
C8 b%r|^#
} Ag!#epi{0
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改进后的归并排序: G$D6#/rR
S3k>34_%9
package org.rut.util.algorithm.support; hsUP5_
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import org.rut.util.algorithm.SortUtil; ;|Ja|@82
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/** mxRe2<W
* @author treeroot S-Y(Vn4
* @since 2006-2-2 `(9B(&t^,
* @version 1.0 /B?hM&@z
*/ 6v9{$:
public class ImprovedMergeSort implements SortUtil.Sort { $Di2BA4Di
Y%V|M0 0`
private static final int THRESHOLD = 10; d">Ya !W
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/* plY`lqm
* (non-Javadoc) %TJF+;
* !I? J^0T
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) o\luE{H
.?
*/ (qP !x 2j
public void sort(int[] data) { 0P_Y6w+
int[] temp=new int[data.length]; nAp7X-t
mergeSort(data,temp,0,data.length-1); 4D/mm(2d$
} N3};M~\
Wsr #YNhx|
private void mergeSort(int[] data, int[] temp, int l, int r) { "Jp6EL%
int i, j, k; 2Z-BZu K6p
int mid = (l + r) / 2; 3o'SY@'W
if (l == r) CDcs~PR@B
return; h ,@x5q>g
if ((mid - l) >= THRESHOLD) Wb4%=2Qn
mergeSort(data, temp, l, mid); \4SFD3$&
else uK?T<3]'
insertSort(data, l, mid - l + 1); $Q:5KNF+p
if ((r - mid) > THRESHOLD) 7<=7RPWmD
mergeSort(data, temp, mid + 1, r); i#jCf3%+
h
else ^saJfr x
insertSort(data, mid + 1, r - mid); 5m+:GiI
/N@0qQ
for (i = l; i <= mid; i++) { pg~`NN
temp = data; } V4"-;P
} *ihg'
for (j = 1; j <= r - mid; j++) { Kg@9kJB
temp[r - j + 1] = data[j + mid]; n#N<zC/
} ;e0>.7m
int a = temp[l]; +{/zP{jH
int b = temp[r]; r,6~?hG]
for (i = l, j = r, k = l; k <= r; k++) { K@{jY\AZNx
if (a < b) { !UUh7'W4u
data[k] = temp[i++]; @T1>%oi
a = temp; p;n )YY$
} else { <MN+2^ed&
data[k] = temp[j--]; e<^tY0rR&
b = temp[j]; 0nAeeVz|
} Iw"?%k\U
} H[x 9 7r
} ji(S ?^
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/** t:M({|m Y
* @param data r _r$nl
* @param l n X
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* @param i ej<z]{`05
*/ Smk]G))o{
private void insertSort(int[] data, int start, int len) { :;"3k64
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 6x@-<{L
} 1&YP}sg)
} cf@#a@7m9
} qRB7I:m-Wi
} 7k3":2:
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堆排序: V!KtF
y&__2t^u
package org.rut.util.algorithm.support; "_)
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import org.rut.util.algorithm.SortUtil; c_^H;~^rL
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/** qrX6FI
* @author treeroot =GR
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* @since 2006-2-2 '~ ]b;nA
* @version 1.0 ij hMJ?3
*/ {/7'uD\
H
public class HeapSort implements SortUtil.Sort{ v;K\#uc_
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/* (non-Javadoc) $]81 s`
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &8&WY1cU
*/ NHc+QMbou(
public void sort(int[] data) { 6-X7C9`C
MaxHeap h=new MaxHeap(); 1 *-58N*
h.init(data); n6o}$]H
for(int i=0;i h.remove(); 71 /6=aq>n
System.arraycopy(h.queue,1,data,0,data.length); <E\BKC%M
} Eun%uah6c
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private static class MaxHeap{ |E7]69=P
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void init(int[] data){ [1vrv(u>
this.queue=new int[data.length+1]; NM]6 o
for(int i=0;i queue[++size]=data; I3s}t$`y(
fixUp(size); 8'cD K[L
} 3YT _GW{
} d'-^VxO0
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private int size=0; \aW5V: ?
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private int[] queue; wOk:Q4OjL
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public int get() { ?y04g u6p
return queue[1]; ng 6G<hi
} TOuFFR
=C:0='a
public void remove() { R\+$^G}#6
SortUtil.swap(queue,1,size--); >$"bwr}'4B
fixDown(1); /cjf 1Dc
} H+0 *
file://fixdown A qm0|GlJ
private void fixDown(int k) { a,tP.Xsl
int j; j/Kw-h ,5"
while ((j = k << 1) <= size) { Kc{wv/6}T
if (j < size %26amp;%26amp; queue[j] j++; T@S+5(
if (queue[k]>queue[j]) file://不用交换 {jq-dL
break; p' gv5\u[w
SortUtil.swap(queue,j,k); <n`|zQ
k = j; "M*\,IH
} '/p5tw8
} I%s/h4x^B[
private void fixUp(int k) { E|fPI u
while (k > 1) { G37_
`C
int j = k >> 1; -J6}7>4^8}
if (queue[j]>queue[k]) g+CHF?O
break; }gn0bCJy
SortUtil.swap(queue,j,k); -FPl",f=r
k = j; F%|(pHk
} kR_[p._
} PRUGUHY
CRf^6k_;(
} {M$8V~8D
%q!nTGU~
} @rdC/=Y[
A6Qi^TI
SortUtil: 4@Qq5kpk*
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package org.rut.util.algorithm; }Ag2c; aaq
lwB!ti
import org.rut.util.algorithm.support.BubbleSort; s-DtkO
import org.rut.util.algorithm.support.HeapSort; l;C_A;y\
import org.rut.util.algorithm.support.ImprovedMergeSort; BdYh:
import org.rut.util.algorithm.support.ImprovedQuickSort; 4q~E\l|.5
import org.rut.util.algorithm.support.InsertSort; &KB{,:)?
import org.rut.util.algorithm.support.MergeSort; U9q*zP_jV
import org.rut.util.algorithm.support.QuickSort; c*W$wr
import org.rut.util.algorithm.support.SelectionSort; 5u8Sxfm",
import org.rut.util.algorithm.support.ShellSort; YJ0[BcZ
[+1
i$d
/** G@(7d1){
* @author treeroot R3<+z
* @since 2006-2-2 $200?[
* @version 1.0 Yl f4q/-
*/ S&0x:VW
public class SortUtil { =os j}(
public final static int INSERT = 1; ^m7PXY
public final static int BUBBLE = 2; ,s)H%
public final static int SELECTION = 3; ~E\CAZ
public final static int SHELL = 4; ^q6~xC,/
public final static int QUICK = 5; x{- caOH
public final static int IMPROVED_QUICK = 6; +1y#=iM{
public final static int MERGE = 7; 83n: h08
public final static int IMPROVED_MERGE = 8; N$+"zJmw&