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。 (.D|%P
插入排序: =6Z$nc
R
]H[%PQ r`Z
package org.rut.util.algorithm.support; :x*#RnRr.
U42B(ow
import org.rut.util.algorithm.SortUtil; ?
}t[
/** {Ee[rAVGp
* @author treeroot lJ y\Ky(*
* @since 2006-2-2 A\xvzs.d
* @version 1.0 M{)7C,'
*/ AE?G+:B
public class InsertSort implements SortUtil.Sort{ 2$S^3$k'
bSbUf%LKt
/* (non-Javadoc) a[).'$S}'
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^R;Qa#=2
*/ m~$S ]Wf
public void sort(int[] data) { &v}c3wL]
int temp; q2>dPI;3T
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Dq$co1eT
} R>|)-"b( `
} 6,J:sm\
} $<c;xDO&t
0xZX%2E
} 7R4xJ H
|-vc/t2k>T
冒泡排序: \~ACWF7l
uIeD.I'@{5
package org.rut.util.algorithm.support; O C qI
-XcX1_
import org.rut.util.algorithm.SortUtil; bi=IIVlH
??MF8uv
/** >o45vB4o
* @author treeroot 2p6`@8*34
* @since 2006-2-2
4|yZA*Q^
* @version 1.0 @20~R/vh
*/ &i/QFO7y}
public class BubbleSort implements SortUtil.Sort{ WJXQM[
!`UHr]HJ
/* (non-Javadoc) %+Az
X
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %BV2 q
*/ )'pc 1I
public void sort(int[] data) { ?A]@$
int temp; >R&=mo~
for(int i=0;i for(int j=data.length-1;j>i;j--){ '5:P,1tWU
if(data[j] SortUtil.swap(data,j,j-1); 6e%|.}U
} ]E8S`[Vn
} yEvuTgDv
} Gd=l{~
} (txr%Z0E
9gS.G2
} B^{87YR
+0)zB;~7
选择排序: w
=MZi=p
R3`Rrj Z
package org.rut.util.algorithm.support; `% a+LU2
utJz e
import org.rut.util.algorithm.SortUtil; Gb?O-z%8*
$IdY(f:.:5
/** wlY6h4c
* @author treeroot E\ 'X|/$a
* @since 2006-2-2 ab5uZ0@
* @version 1.0 _jhdqON6E
*/ [>pqf
public class SelectionSort implements SortUtil.Sort { [+j39d.Q
x?|C-v
/* c[a1
Md&
* (non-Javadoc) qUW>qi,
* vU|.Gw
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Z
T5p
*/ 6Eu&%`
public void sort(int[] data) { @Z50S 8
int temp; Gkfc@[Z V
for (int i = 0; i < data.length; i++) { .W9/*cZV0
int lowIndex = i; Sn_zhQxG
for (int j = data.length - 1; j > i; j--) { 1|PmZPKq9n
if (data[j] < data[lowIndex]) { I{V1Le4?
lowIndex = j; %s#`i$|z*n
} ;~Em,M"o
} 8G SO] R
SortUtil.swap(data,i,lowIndex); HJ\CGYmyz
} 2k^dxk~$V;
} f%1Dn }6
rX8EXraO
} zF
F=v7[j
limzDQ^
Shell排序: 1f.xZgO/2
o4Bl!7U
package org.rut.util.algorithm.support; Vu6pl
,Cj8{s&;
import org.rut.util.algorithm.SortUtil; gw1|
?C
fC$~3v
/** 4cO||OsMU
* @author treeroot (\^)@Y
* @since 2006-2-2 &M,"%w!
* @version 1.0 BBg&ZIYEh
*/ F[
Itq
public class ShellSort implements SortUtil.Sort{ P'nbyF
9t$%Tc#Z
/* (non-Javadoc) =&-hU|ur
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) [SW@ "C!
*/ ,u,]ab
public void sort(int[] data) { LX
%8a^?;
for(int i=data.length/2;i>2;i/=2){ xYMNyj~
for(int j=0;j insertSort(data,j,i); JMMsOA_]
} J{Z-4y
} zn |=Q$81
insertSort(data,0,1); C+WHg-l
} ; md{T'
9u 'hCi(
/** 3,K*r"=
* @param data IXSCYqoK
* @param j GMw|@?:{
* @param i J-W,^%
*/ Y=gj{]4
private void insertSort(int[] data, int start, int inc) { n},~2
int temp; jH*+\:UP-
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); %;.|?gR
} %5_eos&<^)
} ,u}n!quA
} ==psPyLF@
))n7.pB9/
} o(W|BD!
mne^PSI:
快速排序: ?-F SDNQ
u+]v.Mt
package org.rut.util.algorithm.support; |wf:|%
zS:89y<
import org.rut.util.algorithm.SortUtil; lPS A
t9&z|?Vz
/** E(T6s^8
* @author treeroot xNNoB/DR
* @since 2006-2-2 uTRa]D_q
* @version 1.0 M} IRagm
*/ 6'Sc=;;:
public class QuickSort implements SortUtil.Sort{ Po[u6K2&
tUmI#.v
/* (non-Javadoc) b8J\Lm|J
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `>fN?He
*/ JlsRP
public void sort(int[] data) { ?lxI&
h
quickSort(data,0,data.length-1); eiZv|?^0
} auP:r
private void quickSort(int[] data,int i,int j){ i3.8m=>
int pivotIndex=(i+j)/2; bOCdf"!g
file://swap dXh@E7
SortUtil.swap(data,pivotIndex,j); 1Tn!.E *
E<3hy
int k=partition(data,i-1,j,data[j]); 3zb;q@JV
SortUtil.swap(data,k,j); y+RT[*bX5o
if((k-i)>1) quickSort(data,i,k-1); VI%879Z\e
if((j-k)>1) quickSort(data,k+1,j); /Q"nQSG
M* W=v
} p[e|N;W8A
/** ^zGgvFf>
* @param data " 7!K'i
* @param i |}*k|
* @param j %E7+W{?*1
* @return US)wr
*/ h<*l=`#
private int partition(int[] data, int l, int r,int pivot) { xZ@H{):
do{ b?o T|@
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); VEd#LSh
SortUtil.swap(data,l,r); O0"i>}g4
} _ Z6/r^c
while(l SortUtil.swap(data,l,r); )2oWoZvi9
return l; |xH"Xvp:
} J`O4]XRY
1!\!3xa V
} xIF
z@9+k
RlX;c!K
改进后的快速排序: jh]wHG
OgrUP
package org.rut.util.algorithm.support; ;T6^cS{ Gj
Cc]s94
import org.rut.util.algorithm.SortUtil; I
TJ>[c]x
-!MDYj +U
/** ew4IAF
* @author treeroot o lNL|WJ`w
* @since 2006-2-2 `h S<F"
j
* @version 1.0 8N(bLGUG
*/ bF'~&<c
public class ImprovedQuickSort implements SortUtil.Sort { 76)(G/
j:|60hDz^
private static int MAX_STACK_SIZE=4096; mf@YmKbp
private static int THRESHOLD=10; UL[4sv6\9
/* (non-Javadoc) i#1T68y}
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) g_]
u<8&
*/ h^>kjMM
public void sort(int[] data) { vD) LRO
Z
int[] stack=new int[MAX_STACK_SIZE]; )1j~(C)E8
ue/6DwUv
int top=-1; T]EXm/
int pivot; da!N0\.1T
int pivotIndex,l,r; 5DyN=[b
xbo-~{
stack[++top]=0; |i?AtOt@f
stack[++top]=data.length-1; q) /;|h
; Z61|@Y
while(top>0){ Oe$cM=Yf
int j=stack[top--]; -5vc0"?E
int i=stack[top--]; A
i9*w?C
1y0.tdI(
pivotIndex=(i+j)/2; h%+8}uywZ
pivot=data[pivotIndex]; qvYYKu
]vQo^nOo
SortUtil.swap(data,pivotIndex,j); 9z'</tJ`
>Fx$Rty
file://partition $'9r=#EH
l=i-1; J~gfMp.
r=j; T,7Y7MzF
do{ -#gb {vj
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); tsfOPth$*
SortUtil.swap(data,l,r); tO[+O=d
} -&,NM
while(l SortUtil.swap(data,l,r); 2z0HB+Y}x
SortUtil.swap(data,l,j); ,C&h~uRi#f
(=
!_5l
if((l-i)>THRESHOLD){ 6-KC[J^Xo
stack[++top]=i; Vg
\-^$
stack[++top]=l-1; 3<mv9U(
} :-"J)^V
if((j-l)>THRESHOLD){ o4~ft!>
stack[++top]=l+1; sgX}`JH?z
stack[++top]=j; g=U?{<8.m
} (sqS(xIY
GE5@XT
} @bqCs^U35
file://new InsertSort().sort(data); r]HLO'<]
insertSort(data); /$eEj
} '|XP}V0I
/** er#we=h
* @param data <q[*kr
*/ GU[Cq=k
private void insertSort(int[] data) { =]zPUzr,|
int temp; _ZS<zQ'
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); }SN'*w@E
} FwW%@Y
} jQ^Ib]"K
} "5y^s!/
epG;=\f}m`
} "V^jAPDXb
$`=?Nb@@#
归并排序: ZDDwh&h
CqX%V":2
package org.rut.util.algorithm.support; A.h?#%TLL
=0f8W=d:Vr
import org.rut.util.algorithm.SortUtil; H~~(v52wD
hT]p8m
aRZ
/** zp9 ?Ia
* @author treeroot .N'UnKz
* @since 2006-2-2 _x'StD
* @version 1.0 ]Aluk|"`U
*/ VuBp$H(U
public class MergeSort implements SortUtil.Sort{ U)PumU+z$u
uB^]5sqfk
/* (non-Javadoc) XM 7zA^-
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) p{,fWk
*/ vOj$-A--qU
public void sort(int[] data) { .F6#s
int[] temp=new int[data.length]; wS^-o
mergeSort(data,temp,0,data.length-1); xD#/@E1'Y
} ri^yal<'
s6]f#s5o
private void mergeSort(int[] data,int[] temp,int l,int r){ >I!(CM":s$
int mid=(l+r)/2; ( 0h]<7
if(l==r) return ; .=FJ5?:4i%
mergeSort(data,temp,l,mid); k^]~NP
mergeSort(data,temp,mid+1,r); '
#mC4\<W8
for(int i=l;i<=r;i++){ @gj5'
temp=data; zKutx6=aj
} K%k,-
int i1=l; yh)q96m-V=
int i2=mid+1; :h3JDQe:.
for(int cur=l;cur<=r;cur++){ L!G3u/
if(i1==mid+1) ')aYkO{%sb
data[cur]=temp[i2++]; c9[5)
else if(i2>r) TGLXvP&
\
data[cur]=temp[i1++]; 5eLPn
else if(temp[i1] data[cur]=temp[i1++]; L; ~=(
else 0#7dm9
data[cur]=temp[i2++]; 8xX{y#
} vK C>t95
} h CiblM
hMQaT-v
} t]ZSo-
0{yx*}.
改进后的归并排序: R[c_L=
m+=!Z|K
package org.rut.util.algorithm.support; iiTUhO )
I}WJ0}R
import org.rut.util.algorithm.SortUtil; #o RUH8
P33E\O
/** y)}aySQK^
* @author treeroot Ydx5kUJV<
* @since 2006-2-2 bqO"k t
* @version 1.0 !iw
'tHhR
*/ SXEiyy[7v
public class ImprovedMergeSort implements SortUtil.Sort { dq(x@&J
||V:',#,W
private static final int THRESHOLD = 10; kXr%73s
1N+#(<x@,
/* [XXN0+ /
* (non-Javadoc) Tt\w^Gv\d
* : [y(<TLw
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4_<Uk
*/ ho1F8TG=
public void sort(int[] data) { Ub,unU
int[] temp=new int[data.length]; L
~w=O!
mergeSort(data,temp,0,data.length-1); +$t%L
} lND[anB!
^&iV