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。 `j{q
插入排序: ~APS_iG[
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package org.rut.util.algorithm.support; TQ![
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import org.rut.util.algorithm.SortUtil; |Fx *,91
/** xm=Gt$>.o
* @author treeroot I>8_gp\1
* @since 2006-2-2 D<70rBf2
* @version 1.0 n"?*"Ya
*/ ~|<'@B!6
public class InsertSort implements SortUtil.Sort{ a?ete9Q+
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/* (non-Javadoc) y ~-v0/
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])
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*/ i\uj>;B
public void sort(int[] data) { mCn:{G8+
int temp; .Tl,Ek(
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ~zZOogM<
} M]%dFQ
} KO`dAB F}
} ~p'|A}9[/
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} Z molL0y
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冒泡排序: ;wJe%Nw?
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package org.rut.util.algorithm.support; e2fv%
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import org.rut.util.algorithm.SortUtil; |7KWa(V5I
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/** yFd .tQs
* @author treeroot }T PyHq"
* @since 2006-2-2 {\k }:)
* @version 1.0 B&7:=t,m(
*/ !Mgo~h"]#
public class BubbleSort implements SortUtil.Sort{ EXbZ9 o*
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/* (non-Javadoc) ;Y8>?
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) R@uA4Al
*/ \)6AzCq
public void sort(int[] data) { [CI0N
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int temp; h=6D=6c
for(int i=0;i for(int j=data.length-1;j>i;j--){ com4@NK
if(data[j] SortUtil.swap(data,j,j-1); }Z\S__\9
} *qYw
} )n<p_vz
} "\vQVZd-E
} ;,uATd|
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} !5h8sD;
d"E3ypPK
选择排序: _B^X3EOc
Xk'Pc0@a
package org.rut.util.algorithm.support; pyX:$j2R+%
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import org.rut.util.algorithm.SortUtil; unqUs08
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/** i`<L#6RBT
* @author treeroot *:+ZEFMq
* @since 2006-2-2 _u;pD-
* @version 1.0 G$KQgUN~[
*/ !?).4yr
public class SelectionSort implements SortUtil.Sort { [+l6x1Am
j( k%w
/* Jqgm>\y
* (non-Javadoc) 0 ;)Q
* - q(a~Ge
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k;JDVRL
*/ -{C Gn5]_#
public void sort(int[] data) { ShlTMTgS
int temp; gm-9 oA
X
for (int i = 0; i < data.length; i++) { X!ldL|Ua%
int lowIndex = i; )}"`$6:k`
for (int j = data.length - 1; j > i; j--) { G; exH$y
if (data[j] < data[lowIndex]) { *"Iz)Xzc`
lowIndex = j; D
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} hbr3.<o1lY
} y<m[9FC}
SortUtil.swap(data,i,lowIndex); ]t&^o**
} \Wg_ gA
} qQ3pe:n?
2"shB(:z>
} QBi]gT@&g
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Shell排序: lup2>"?*
bZAL~z+ V
package org.rut.util.algorithm.support; IsJx5GO
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import org.rut.util.algorithm.SortUtil; (C
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/** f[R~oc5P0
* @author treeroot bWlYQ
* @since 2006-2-2 _!vy|,w@e
* @version 1.0 =-r); d
*/ y3j"vKG
public class ShellSort implements SortUtil.Sort{ d-m.aP)y:
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/* (non-Javadoc) |&
jrU-(
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) C4gES"T
*/ 34"PtWbV>
public void sort(int[] data) { \X!NoF
for(int i=data.length/2;i>2;i/=2){ 7TI6EKr
for(int j=0;j insertSort(data,j,i); Z1v~tqx
} b$Dh|-8
} W#^.)V
insertSort(data,0,1); KZcmNli&A
}
h
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/** Ya!%o> J%t
* @param data kw#-\RR_c
* @param j d:^B2~j
* @param i H[OgnnM
*/ IoK/ 2Gp
private void insertSort(int[] data, int start, int inc) { <-N2<sl
int temp; uifVSf*
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); GP %hf{
} 4$ihnb`DQN
} v2:i'j6
} $?k]KD
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} D `V.gV]
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快速排序: dT?3Q;>B?
f^"pZS
package org.rut.util.algorithm.support; nu~]9~)I
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import org.rut.util.algorithm.SortUtil; aH@-"Wi
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/** O1t$]k:
* @author treeroot +w?R4Sxjn
* @since 2006-2-2 IPYwUix
* @version 1.0 [2Nux0g
*/ s/C'f4
public class QuickSort implements SortUtil.Sort{ LGW_7&0<<
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/* (non-Javadoc) NW 2`)e'
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^eO/?D8~h
*/ b.\xPb
public void sort(int[] data) { ).(y#zJ7P
quickSort(data,0,data.length-1); *W^ZXhrZ
} r;[ =y<Yf
private void quickSort(int[] data,int i,int j){ +DR$ >a
int pivotIndex=(i+j)/2; =Tl_~OR
file://swap t8xXGWk0
SortUtil.swap(data,pivotIndex,j); .PR+_a-X
{]dtA&8(
int k=partition(data,i-1,j,data[j]); 7 [u>#8
SortUtil.swap(data,k,j); 2u!&Te(!9
if((k-i)>1) quickSort(data,i,k-1); $of2 lA
if((j-k)>1) quickSort(data,k+1,j); XM`
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yzzJKucVU:
} YC56]Zp
/** 4G&dBH
* @param data iT,7jd?6#
* @param i 2E!~RjxSY
* @param j btq4diW
* @return nQ_{IO8/6W
*/ 3z2
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private int partition(int[] data, int l, int r,int pivot) { 6(4d3}F
do{ 6Xm'^T
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); T:m"
eD;
SortUtil.swap(data,l,r); CPRVSN0b{4
} {$yju _[
while(l SortUtil.swap(data,l,r); /"j3B\`?
return l; ;`:YZ+2
Z
} 1,bE[_
,#&7+e!]>P
} 5Lej_uqF
T>L?\-
改进后的快速排序: lG94^|U
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package org.rut.util.algorithm.support; pWJEFm
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k
import org.rut.util.algorithm.SortUtil; <"P-7/j3j
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/** \y=oZk4
* @author treeroot q^EY?;Y
* @since 2006-2-2 DmLx"%H3
* @version 1.0 |3@DCbT
*/ 9_O4yTL
public class ImprovedQuickSort implements SortUtil.Sort { 23>[-XZb[O
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private static int MAX_STACK_SIZE=4096; 1nskf*Z
private static int THRESHOLD=10; %>i:C-l8
/* (non-Javadoc) *pS 7,Hm
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) F!0iM)1o
*/ ` K{k0_{
public void sort(int[] data) { ';/J-l/SE
int[] stack=new int[MAX_STACK_SIZE]; 0Q_*Z (
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int top=-1; eJHh }
int pivot; g]2L[4
int pivotIndex,l,r; l$/lbwi%
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stack[++top]=0; '= fk;AiQ
stack[++top]=data.length-1; %60 OS3
0C/ZcfFU~
while(top>0){ =huV(THU
int j=stack[top--]; .)!QsBU
int i=stack[top--]; HRDpFMA/~
p.=9[`
pivotIndex=(i+j)/2; wLXJ?iy3
pivot=data[pivotIndex]; U"p</Q
`**{a/3
SortUtil.swap(data,pivotIndex,j); <c pck
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file://partition bP9ly9FH
l=i-1; @3O)#r}\
r=j; `!HD.
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do{ "Nj/{BU
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 4r1\&sI$~
SortUtil.swap(data,l,r); &o;0%QgF
} x
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while(l SortUtil.swap(data,l,r); L4g%o9G
SortUtil.swap(data,l,j); gtA34iw
SE]5cJ'>
if((l-i)>THRESHOLD){
4F~^RR"
stack[++top]=i; 3Hom0g,V4
stack[++top]=l-1; w#9KtW,tt
} =L" 0]4K
if((j-l)>THRESHOLD){ PFh ^Z L
stack[++top]=l+1; /^BC
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stack[++top]=j; f` uRC-B/
} 2(xC|
E
s5:S#
} 'Be'!9K*d
file://new InsertSort().sort(data); `)n4I:)2
insertSort(data); Pj-INc96
} \@:,A]
/** YS9RfK/
* @param data [!A[oK9i C
*/ :-k|jt
private void insertSort(int[] data) { `R[ZY!=+
int temp; &&X,1/
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); M`Er&nQs
} St-uE|8
} y!77gx?-
} A]/o-S_
{ :tO
RF
} J/?Nf2L4
// o.+?S
归并排序: LSJ?;Zg(=z
;"wCBuXcu
package org.rut.util.algorithm.support; i/ilG3m>
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import org.rut.util.algorithm.SortUtil; LmF ,en5
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/** C8}:z\A_@Z
* @author treeroot !.]JiT'o
* @since 2006-2-2 7z{wYCw
* @version 1.0 -1g:3'%
P
*/ 8-#%l~dr
public class MergeSort implements SortUtil.Sort{ $RPW/Lyiq
}~XWtWbd-
/* (non-Javadoc) V0\[|E;F
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HgF;[rq3Q
*/ )\fY1WD
public void sort(int[] data) { f&^(f1WO
int[] temp=new int[data.length]; pIJXP$v3
mergeSort(data,temp,0,data.length-1); 4]y)YNQ(
} pE4a ~:
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private void mergeSort(int[] data,int[] temp,int l,int r){ e<L@QNX
int mid=(l+r)/2; 7^q~a(j
if(l==r) return ; m|@H`=`d
mergeSort(data,temp,l,mid); 9Eyx Ob
mergeSort(data,temp,mid+1,r); ~?Q sr
for(int i=l;i<=r;i++){ 9oWU]A\k>
temp=data; !+T1kMP+l
} ?['!0PF
int i1=l; }vd*eexA
int i2=mid+1; SiratkP9n7
for(int cur=l;cur<=r;cur++){ SAx9cjj+
if(i1==mid+1) ]k0
jmE
data[cur]=temp[i2++]; NK_|h%
else if(i2>r) {m.$EoS
data[cur]=temp[i1++]; <>cS@V5j
else if(temp[i1] data[cur]=temp[i1++]; }rTH<!j
else du3f'=q6|
data[cur]=temp[i2++]; _IYaMo.n
} %BqaVOKJ"f
} k9^Hmhjw
0s#72}n
} ,5}U
H
m~ tvuz I
改进后的归并排序: "s*-dZO
J!6FlcsZm
package org.rut.util.algorithm.support; RLB3 -=9t
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import org.rut.util.algorithm.SortUtil; gE-y`2SU
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/** rl*O-S/
* @author treeroot Ifj&S'():
* @since 2006-2-2 CLb6XnkcA\
* @version 1.0 ~GaGDS\V
*/ AZtS4]4G)
public class ImprovedMergeSort implements SortUtil.Sort { a|aVc'j
bLgH3[{
private static final int THRESHOLD = 10; /:&!o2&1H
l>?c AB[
/* p*Bty@CRi
* (non-Javadoc) hRcb}>pr
* c?p^!zG
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g,ZA\R~
*/ yBIlwN`kB
public void sort(int[] data) { Y?T{>"_W
int[] temp=new int[data.length]; `BPTcL<W
mergeSort(data,temp,0,data.length-1); %`vzQt`>
} w2)Ro:G
^NW[)Dq1<
private void mergeSort(int[] data, int[] temp, int l, int r) { (B7G'h.?
int i, j, k; 7io["zW
int mid = (l + r) / 2; H"Pb)t
if (l == r) OG,P"sv
return; sGvbL-S-f:
if ((mid - l) >= THRESHOLD) \U~4b_aN
mergeSort(data, temp, l, mid); S:\i
M:
else )xGAe#E~j
insertSort(data, l, mid - l + 1); ] $ew 5%
if ((r - mid) > THRESHOLD) [uq>b|`RG
mergeSort(data, temp, mid + 1, r); pMc6p0
else fCl}eXg6w
insertSort(data, mid + 1, r - mid); ]Z JoC!u
DHidI\*gT
for (i = l; i <= mid; i++) { Q M,!-~t
temp = data; &K)8
} weitDr6
for (j = 1; j <= r - mid; j++) { I$Nh|eM
temp[r - j + 1] = data[j + mid]; o_b[ *
} cPGlT"
int a = temp[l]; |m19fg3u
int b = temp[r];
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for (i = l, j = r, k = l; k <= r; k++) { B[vj X"yg
if (a < b) { Tt[zSlIMx
data[k] = temp[i++]; BG{f)2F\
a = temp; 'm%{Rz>j
} else { R;& >PFmq
data[k] = temp[j--]; 8#I>`z^F
b = temp[j]; T:|/ux3
} A]1Nm3@
} prBLNZp
} J3Mb]X)_}
e5=d
Ev
/** d1/emwH
* @param data D)_
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* @param l Rd?}<L
* @param i k_=SDm a
*/ NzRvb j]
private void insertSort(int[] data, int start, int len) { jXcJ/g(X3
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); )n/%P4l
} QaX.Av
} lG*Rw-?a
} 5:Qz
} od;-D~
bP,<^zA|X
堆排序: qZoDeN-CC
-@uFRQt
package org.rut.util.algorithm.support; b^Hrzn
idmU.`
import org.rut.util.algorithm.SortUtil; QbU5FPiN
fS]&?$q
/** :dmE/Tq
* @author treeroot FR(W.5[
* @since 2006-2-2 =O/Bte.
* @version 1.0 vNv?trw
*/ ]!UYl
public class HeapSort implements SortUtil.Sort{ ~iw&^p|=K
rvA>khu0/
/* (non-Javadoc) HN47/]"*
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;#B(L=/
*/ I8*VM3
public void sort(int[] data) { ;'!x
MaxHeap h=new MaxHeap(); Z1Qz
LvWs
h.init(data); w$gvgz
for(int i=0;i h.remove(); [^>XRBSm
System.arraycopy(h.queue,1,data,0,data.length); a"~o'W7
} _8K+iqMZG
z,HhSW?&^
private static class MaxHeap{ }v(wjD
6*8Wtq
void init(int[] data){ vr!J3H f
this.queue=new int[data.length+1]; ! VwU=5
for(int i=0;i queue[++size]=data; \j)Evjw
fixUp(size); -K"'F`;W
} }v1wpv/b(
} >DL
pjl%Jm
private int size=0; 4Z)4WGp!
N'^>pSc4W|
private int[] queue; :}Jx
VJ*1g+c
public int get() { |5@Ra@0
return queue[1]; lED!}h'4
} ,|%KlHo^
:\](m64z;
public void remove() { LS@TTiN
SortUtil.swap(queue,1,size--); s"(RdJ-,
fixDown(1); *k$[/{S1-
} ~cz}C("Z
file://fixdown !}*N';
private void fixDown(int k) { ,(jJOFf
int j; {1GJ,['qL
while ((j = k << 1) <= size) { ;qx#]Z0 <
if (j < size %26amp;%26amp; queue[j] j++; 8&QST!JGSX
if (queue[k]>queue[j]) file://不用交换 C|{Sj`,XG
break; <,.$U\W
SortUtil.swap(queue,j,k); D(cD8fn,J
k = j; p l)":}/)
} 1-RY5R}VR
} mq:k|w^6
private void fixUp(int k) { Xz]l#w4Pp
while (k > 1) { u09Tlqh0 3
int j = k >> 1; $m`Dyu
if (queue[j]>queue[k]) MVatV[G
break; &lc@]y8
SortUtil.swap(queue,j,k); YMGy-]!o
k = j; X<ex
>sM
} ;W|kc</R*
} UhB+c
?7\V)$00(&
} UG1<Xfu|
\0@DOW22C
} =g% L$b<i
b3NIFKw
SortUtil: x/QqG1q
s|YH_1r
package org.rut.util.algorithm; h yrPu_
0
_!0\d#c
import org.rut.util.algorithm.support.BubbleSort; 7KtU\u
import org.rut.util.algorithm.support.HeapSort; gt4GN`-k
import org.rut.util.algorithm.support.ImprovedMergeSort; ]aN9mT
N
import org.rut.util.algorithm.support.ImprovedQuickSort; ,@"yr>Q9#6
import org.rut.util.algorithm.support.InsertSort; *i#2>=)
import org.rut.util.algorithm.support.MergeSort; Zy0M\-Mn
import org.rut.util.algorithm.support.QuickSort; ZbRRDXk!
import org.rut.util.algorithm.support.SelectionSort; )1 <0c@g=
import org.rut.util.algorithm.support.ShellSort; PW*Vfjf4
x;ik
/** {uDW<