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。 eD#hpl
插入排序: L{`JRu
"%x<ttLl
package org.rut.util.algorithm.support; x UD-iSY
)d>!"JB-
import org.rut.util.algorithm.SortUtil; HC}YY2
/** Y(cGk#0
* @author treeroot _"w2U q
* @since 2006-2-2 0p\@!Z H
* @version 1.0 MHC^8VL
*/ ,kn">k9
public class InsertSort implements SortUtil.Sort{ m
RO~aD!N
,9o"43D:a|
/* (non-Javadoc)
({=gw9f
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[])
]]wA[c~G
*/ : 7`[$<~E
public void sort(int[] data) { +@/"%9w
int temp; g'm+/pU)w)
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); A,LuD.8
} %$Aqle[
} hHMN6i
} 6ZQwBS0Y
5x>}O3Q_
} Os1>kwC
X]dwX%:Z!j
冒泡排序: }-sdov<<
:65~[$2
package org.rut.util.algorithm.support; >M/V oV
N
D2L_!g:(
import org.rut.util.algorithm.SortUtil; /Dj=iBO
fk x \=
/** Yn G_m]
* @author treeroot |YY_^C`"-
* @since 2006-2-2 eXf22;Lz
* @version 1.0 sU{NHC)5
*/ -#HA"7XOE
public class BubbleSort implements SortUtil.Sort{ Aw5HF34J
AQ[GO6$,%H
/* (non-Javadoc) X'qU*Eo
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tyqT
*/ pxh"B\"4*
public void sort(int[] data) { \hEN4V[
int temp; #odI EC/
for(int i=0;i for(int j=data.length-1;j>i;j--){ #a8B/-
if(data[j] SortUtil.swap(data,j,j-1); :1bWVM)
} x}"uZ$g
} !74S
} :dQ B R
} 8;+B*+%@n
]33>m|?@
} sv&;Y\2c
U5.LDv;
选择排序: 7OJ'){R$
&bfA.&
`
package org.rut.util.algorithm.support; 5jgR4a*_v
''\Ov
import org.rut.util.algorithm.SortUtil; Tw;3_Lj
I
,z3xU
/** KQg]0y
d
* @author treeroot 2bkX}FWd;
* @since 2006-2-2 sWc*5Rt
* @version 1.0 'DL`Ee\
*/ .@@?Pj?)
public class SelectionSort implements SortUtil.Sort { m;GbLncA
[k;\S XDZo
/* SfaQvstN
* (non-Javadoc) w.YiO5|y
* K|hjEQRv
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) yEhTNBa*h{
*/ 8L:ji,"
public void sort(int[] data) { ZL&g_jC
int temp; 0dGAP
for (int i = 0; i < data.length; i++) { 5BlR1*
int lowIndex = i; A|X">,A
for (int j = data.length - 1; j > i; j--) { lE&&_INHQ
if (data[j] < data[lowIndex]) { 8{^WY7.'
lowIndex = j; 5#+^E{
} 8T!+ZQAz
} 10q'Z}34
SortUtil.swap(data,i,lowIndex); z6jc8Z=O
} o4K ~
} pEIRh1
oPXkYW
} &3J_^210
XkXHGDEf 1
Shell排序: ToXki,
UQC=g
package org.rut.util.algorithm.support; -ZRO@&tMD
KLitg6&P
import org.rut.util.algorithm.SortUtil; j}JrE,|
2\jPv`Ia
/** x,|hU@h
* @author treeroot a1+#3X.
* @since 2006-2-2 QgU8s'e
* @version 1.0 zMm#Rhn
*/ V )x$|!(
public class ShellSort implements SortUtil.Sort{ $c:ynjL|P-
:U3kW8;UMP
/* (non-Javadoc) T|7}EAR=b
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) q_g+Jf
P-D
*/ gcPTLh[^Er
public void sort(int[] data) { uW@oyZUj
for(int i=data.length/2;i>2;i/=2){ ZniB]k1
for(int j=0;j insertSort(data,j,i); ]B%v+uaW
} v9w'!C)b
} q Gw -tPD<
insertSort(data,0,1); mpI5J'>]
} F+,~v-
`\gnl'
/** r@+ri1c
* @param data ![YX]+jqNp
* @param j Y^8C)p9r
* @param i =vDEfO/T
*/ h|VeG3H
private void insertSort(int[] data, int start, int inc) { ]h* c,.
int temp; ]iN'x?Fo
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); \W1,F6&j
} R?~Yp?B^
} s%C)t6`9
} Kwefs;<E?
[F0s!,P
} cZB7fmq%
DnCP
aM4%
快速排序: (l-tvk4Ln
2XFU1 AW
package org.rut.util.algorithm.support; xO^:_8=&:
dv8>[#
import org.rut.util.algorithm.SortUtil; zLD0RBj7p
# {w9s0:
/** WG6FQAo^8
* @author treeroot !46RGU:I
* @since 2006-2-2 1crnmJ!C
* @version 1.0 4L ;% h
*/ x(hE3S#+
public class QuickSort implements SortUtil.Sort{ i]Fp..`v~
y.e^h RKb
/* (non-Javadoc) (i34sqV$m
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 9N9L}k b
*/ M9V
q
-U18
public void sort(int[] data) { t]y
D-3'l&
quickSort(data,0,data.length-1); C\/xl#e<@
} Kqp(%8mf
private void quickSort(int[] data,int i,int j){ KM}f:_J*lg
int pivotIndex=(i+j)/2; ?ooe'V@
file://swap bvv|;6
SortUtil.swap(data,pivotIndex,j); 0vEoGgY0*:
;A|-n1e>Hc
int k=partition(data,i-1,j,data[j]); AvxfI"sp
SortUtil.swap(data,k,j); ]l1\? I
if((k-i)>1) quickSort(data,i,k-1); :rHJ4Tl
if((j-k)>1) quickSort(data,k+1,j); &y3OR1_Sm*
m@"QDMHk.
} D2](da:]8)
/** jX3,c%aQ5e
* @param data qQA}Z*(m
* @param i cxA ^:3
* @param j RA KFU
* @return giZP.C"0
*/ 4SlADvGl
private int partition(int[] data, int l, int r,int pivot) { q;<h[b?
do{ K8>zF/# +
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); &>%T^Y|J4
SortUtil.swap(data,l,r); 5jd,{<
} |?qquD 4=
while(l SortUtil.swap(data,l,r); CjlKMbnBH
return l; BFL`!^
} 3gv|9T
7on.4/;M
} in~D
.WPV dwV4U
改进后的快速排序: 9[G[$c
p 3 w
package org.rut.util.algorithm.support; 0BIy>wy:
JsDpy{q
import org.rut.util.algorithm.SortUtil; :?/cPg'D
B[V+ND'(
/** kPVO?uO
* @author treeroot BReJ!|{m}
* @since 2006-2-2 U@-^C"R
* @version 1.0 !q9+9 *6
*/ J@4 Bf
public class ImprovedQuickSort implements SortUtil.Sort { w*oeK
Zy o[(`y
private static int MAX_STACK_SIZE=4096; 9\/xOwR
private static int THRESHOLD=10; %]>KvoA
/* (non-Javadoc) oJ4AIQjB
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) $Hj.{;eC/k
*/ MFb9H{LA
public void sort(int[] data) { 4WJ.^ (
int[] stack=new int[MAX_STACK_SIZE]; R~)\3] "2m
XzIl`eH
int top=-1; Qk,I^1w?7
int pivot; E=>FjCsu<-
int pivotIndex,l,r; qNYN-f~@,
CbwJd5tk
stack[++top]=0; P%#<I}0C
stack[++top]=data.length-1; :.$3vaZ@
kP-3"ACG
while(top>0){ VzY8rI
int j=stack[top--]; zxC#0@qX07
int i=stack[top--]; UPG9)aF
4scNSeW
pivotIndex=(i+j)/2; C!fMW+C@
pivot=data[pivotIndex]; 22.8PO0
4<k9?)~(J
SortUtil.swap(data,pivotIndex,j); P@9t;dZN
%`&2+\`
file://partition kzt(i Y_6
l=i-1; #6+@M
r=j; Q0&H#xgt
do{ S/4^ d &Gr
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 0l-Ef1
SortUtil.swap(data,l,r); R}q>O5O
} |Z=^`J
while(l SortUtil.swap(data,l,r); [3{W^WSOz
SortUtil.swap(data,l,j); joiL{
4}4Pyjh
if((l-i)>THRESHOLD){ 2T V X)q<\
stack[++top]=i; f!!V${)X
stack[++top]=l-1; .HkL2m
} K':K{ee>
if((j-l)>THRESHOLD){ bO'Sgc[]
stack[++top]=l+1; f"qga/
stack[++top]=j; UrYZ`J
} @U3Vc|
^eR%N8Z
} %l,,_:7{
file://new InsertSort().sort(data); ]3KhgK%c8
insertSort(data); ,PWgH$+
} eC[$B99\
/** Z; A`oKd
* @param data V>A.iim
*/ [&&1j@LQ*
private void insertSort(int[] data) { SRrw0&ts
int temp; bpKZ3}U
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); rld67'KcE
} #ZYVc|sT+
} ^!9~Nwn
} 8;Yx<woR
WC.t_"@
} \hM|(*DL
++V=s\d7
归并排序: V??dYB(
; =X P &
package org.rut.util.algorithm.support; BI $
mw='dFt
import org.rut.util.algorithm.SortUtil; U` Wauv&
[$ejp>'Ud
/** GQ9\'z#+
* @author treeroot M
$Es%
* @since 2006-2-2 brdmz}
* @version 1.0 j4;0|zx-i
*/ m<0&~rg
public class MergeSort implements SortUtil.Sort{ z&{5;A}Q@
iv>SsW'p_
/* (non-Javadoc) D,g1<:<
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <j5NFJ9
*/ lhw ,J]0*
public void sort(int[] data) { CC@.MA@9N
int[] temp=new int[data.length]; [&nh5|f
mergeSort(data,temp,0,data.length-1); tPGJ<30
} t$A%*JBKm
uvV;Mlo]
private void mergeSort(int[] data,int[] temp,int l,int r){ e{v=MxO=S
int mid=(l+r)/2; &'DU0c&
if(l==r) return ; GF5^\Rf
mergeSort(data,temp,l,mid); |"9 #bU
mergeSort(data,temp,mid+1,r); )I$q 5%q8
for(int i=l;i<=r;i++){ a)#1{JaoY
temp=data;
NsJ(`zk:
} k:#P|z$UD
int i1=l; DNj"SF(J
int i2=mid+1; +{L<? "
for(int cur=l;cur<=r;cur++){ EoxQ
*/
if(i1==mid+1) 6'RrQc=q
data[cur]=temp[i2++]; ,$
^C4I
else if(i2>r) r?*NhLG;
data[cur]=temp[i1++]; `A,g] 1C:
else if(temp[i1] data[cur]=temp[i1++]; w&B#goS
else d GFGr}&s
data[cur]=temp[i2++]; !Wy[).ZAf
} _!?Hu/zo
} ~DsECnD
sPb=82~z
} ;XDz)`c
-M1YE
改进后的归并排序: {!K-E9_,S
\a=D
package org.rut.util.algorithm.support; m~D&gGFt
?x0pe4^If
import org.rut.util.algorithm.SortUtil; aKd+CO:
YNBHBK4;
/** E gDQ+(
-
* @author treeroot WwUv5GZTW
* @since 2006-2-2 ^_%kE%I
* @version 1.0 `)Z!V?&