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。 w"A>mEex<
插入排序: pvRa
W=2]!%3#
package org.rut.util.algorithm.support; ;)sC{ "Jb
H{_6e6`e.
import org.rut.util.algorithm.SortUtil; fvG4K(
/** L_!}R
* @author treeroot 6U]r 3
Rr
* @since 2006-2-2 w2K>k/v{-
* @version 1.0 ytV4qU82G
*/ Ev48|X6
public class InsertSort implements SortUtil.Sort{ +Lo,*
uiWo<}t}{
/* (non-Javadoc) I#W J";kqB
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) wqyF"^It"
*/ s##XC^;p[
public void sort(int[] data) { T'N/A9{q
int temp; gpCWXz')i
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); g=Nde2d?
} ;3Q3!+%j
} P+ 0-h
} cQ0+kX<
Tcq@Q$H
} SWNT}{x]
lW]&a"1$
冒泡排序: ZZ>(o
d!B
<S0gIg`)
package org.rut.util.algorithm.support; NF7+Gp6?q
$@[Mo
import org.rut.util.algorithm.SortUtil; +V#dJ[,8;.
d2g7,axi
/** %y)LBSxf
* @author treeroot n5*m x7
* @since 2006-2-2 B5]nP .R
* @version 1.0 y"zZ9HQM
*/ G52z5-=v
public class BubbleSort implements SortUtil.Sort{ ]YB,K)WQ
Qaiqx"x3
/* (non-Javadoc) 6{ pg^K
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jYW-}2L
*/ 2JHV*/Q
public void sort(int[] data) { !'=<uU-
int temp; dAjm4F-
for(int i=0;i for(int j=data.length-1;j>i;j--){ Q*/jQC
if(data[j] SortUtil.swap(data,j,j-1); 5"Y:^_8
} `QT9W-0e^
} o7yvXrpG(U
} ~VPE9D@
} P_M!h~
Lvn+EM
} N$cAX^~
q)tNH/
选择排序: |1/?>=dDm
:A,7D(H|
package org.rut.util.algorithm.support; SFRYX,0m
U@)WTH6d
import org.rut.util.algorithm.SortUtil; 7#9fcfL
CW~c<,"
/** }`uq:y
* @author treeroot RNX>I,2sh
* @since 2006-2-2 CbT ;#0
* @version 1.0 [ _&z+
*/ 2c5)pIVEy
public class SelectionSort implements SortUtil.Sort { 8ZDWaq8^2N
Qs_]U
/* |PLWF[+t8
* (non-Javadoc) "T6s;'k
* p%e/>N.P
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #LG<o3An
*/ N\x<'P4q
public void sort(int[] data) { P)UpUMt;k
int temp; _(KzjOMt
for (int i = 0; i < data.length; i++) { KocNJ
TB
int lowIndex = i; fyv S1_
for (int j = data.length - 1; j > i; j--) { /qXP\ a
if (data[j] < data[lowIndex]) { E_K32)J-
lowIndex = j; >7QC>ws%
} gq)uv`3
} 0Y*Ag,S
SortUtil.swap(data,i,lowIndex); v0+$d\mP4<
} [<#`@Kr
} e{*z4q1
Bv}nG|
} <&}N[
0JLQ.%_
Shell排序: ?O/!pUAu
/Fp@j/50
package org.rut.util.algorithm.support; +<c(;Ucl?
u:\DqdlU`
import org.rut.util.algorithm.SortUtil; {uiL91j.
v79\(BX
/** <*djtO
* @author treeroot wUmcA~3D
* @since 2006-2-2 x c$jG?83#
* @version 1.0 wmit>69S
*/ +\MGlsMK@.
public class ShellSort implements SortUtil.Sort{ YHo*IX')C?
8' +I8J0l
/* (non-Javadoc) C0'_bTfB
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) D;X/7 p|>
*/ \xOv 9(
public void sort(int[] data) { aX35^K /
for(int i=data.length/2;i>2;i/=2){ Mog!pmc{
for(int j=0;j insertSort(data,j,i); Y!_e,]GW
} ~@K!>j
} Bet?]4\_
insertSort(data,0,1); EBplr ,
} O)}5`0@L
DbK-3F_
/** );V.le}%(
* @param data 5<|X++y}8)
* @param j bcFZ ~B
* @param i THnZbh4#)
*/ P64<O5l/
private void insertSort(int[] data, int start, int inc) { (Bu-o((N@0
int temp; `HsI)RmX
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); f.Ms3))
} ')j@OO3
} )dI `yf
} Y/G~P,9
n7'X.=o7
} 76EMS?e
>3y:cPTM5
快速排序: GP=&S|hi
>66v+
package org.rut.util.algorithm.support; @Yh%.#\i%
&, WQr
import org.rut.util.algorithm.SortUtil; YW^sf,zQ
%ZJ;>a#
/** ~.8p8\H
* @author treeroot 1Ozy;;\-9
* @since 2006-2-2 + Scw;gO
* @version 1.0 R(DlJ
*/
:O{
ZZ
public class QuickSort implements SortUtil.Sort{ WB=|Ty~l
.V|o-~c
/* (non-Javadoc) *`bAu *
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4'0rgS
*/ EnXTL]=0S
public void sort(int[] data) { 3 3b 3v\N
quickSort(data,0,data.length-1); BW&)Zz
} NEX{vZkgw
private void quickSort(int[] data,int i,int j){ #Ue_
int pivotIndex=(i+j)/2; ]jwF[D
file://swap .06[*S
SortUtil.swap(data,pivotIndex,j); w:o,mzuXK
hIMD2
int k=partition(data,i-1,j,data[j]); dzyp:\&9
SortUtil.swap(data,k,j); %PxJnMb?
if((k-i)>1) quickSort(data,i,k-1); 8hm|9
if((j-k)>1) quickSort(data,k+1,j); 5j-?Uf
bupDnTF
} MbjMO"}
/** i?CXDuL
* @param data }`$Sr&n 1
* @param i RJT=K{2x
* @param j S(h+,+289
* @return \>r<z46x
*/ Tjza3M
private int partition(int[] data, int l, int r,int pivot) { 8yn}|Y9Fu
do{ ^jZ4tH3K
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); SpiI9)gp
SortUtil.swap(data,l,r); RS[>7-9
} m8<l2O=m
while(l SortUtil.swap(data,l,r); /l$>W<}@
return l; K
na
} KcNh3CR
tu0agSpU
} $&[}+??
k\wI^D
改进后的快速排序: h[I~D`q)v
*S=zJyAO
package org.rut.util.algorithm.support; v6`TbIq%
#&ZwQw
import org.rut.util.algorithm.SortUtil; ([L5i&DT
0'4V*Y
/** fI1,L"
* @author treeroot @`Foy
* @since 2006-2-2 ]-G10p}Ph-
* @version 1.0 !L_\6;aP,x
*/ 7! "OF
public class ImprovedQuickSort implements SortUtil.Sort { q\a'pp9d
6l-V%3-
private static int MAX_STACK_SIZE=4096; *T{P^q.s~[
private static int THRESHOLD=10; .YcI .
/* (non-Javadoc) x*2' I
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) !/Wp0E'A
*/ @80Z@Pj
public void sort(int[] data) { Pn|*(sTl
int[] stack=new int[MAX_STACK_SIZE]; beCTOmC
rkz_h
int top=-1; \<K@t=/
6
int pivot; UN6Du\)]d
int pivotIndex,l,r; ]Uee!-dZ
r^|AiYI)
stack[++top]=0; pv #uLo
stack[++top]=data.length-1; }tRY,f
S.X*)CBB
while(top>0){ WGeTL`}dh
int j=stack[top--]; bI?YNt,
int i=stack[top--]; 4tv}V:EO
vkQkU,q
pivotIndex=(i+j)/2; c3$h-M(jVJ
pivot=data[pivotIndex]; V"{+cPBO)
uNSbAw3
SortUtil.swap(data,pivotIndex,j); dJ}E,rW}
4PzCm k
file://partition DoA+Bwq@
l=i-1; }- P
='AyL
r=j; /?wH1 ,
do{ u!VAAX
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); =Vm"2g,aA
SortUtil.swap(data,l,r); T2^0Q9E?
} ) ]x/3J@
while(l SortUtil.swap(data,l,r); 43 h0i-%1
SortUtil.swap(data,l,j); xVn"xk
qvH7 otA
if((l-i)>THRESHOLD){ 42wa9UL<Ka
stack[++top]=i; EgT2a
stack[++top]=l-1; bijE]:<AE7
} ZfYva(zP{Q
if((j-l)>THRESHOLD){ ^ A`@g4!
stack[++top]=l+1; O8drR4Pt
stack[++top]=j; /X_g[*]?
} `pzXh0}|
H=j&uv8
} DZI:zsf;5Q
file://new InsertSort().sort(data); |3A/Og
insertSort(data); oSOO5dk:z
} xF4>D!T%8
/** ,>rr|O
* @param data Rr|&~%#z
*/ <s7OY`(8
private void insertSort(int[] data) { N5%zbfKM
int temp; B8'e,9
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); "5,tEP!
} (A\p5@ht
} ^gK8
u]>
} Wp[R$/uT
&Q85B q
} UE[5Bw?4X
qx $-% P
归并排序: k9ThWo/#u
0~5'O[NhF
package org.rut.util.algorithm.support; ?x|8"*N
EN =oA P
import org.rut.util.algorithm.SortUtil; P sLMV:O9S
v ;q<h
/** 8Q%rBl.
* @author treeroot g0P^O@8
* @since 2006-2-2 ;;9W/m~]
* @version 1.0 o6PDCaT7
*/ Tjfg[Z/x
public class MergeSort implements SortUtil.Sort{ LyRU2A
&{Zt(%\ '
/* (non-Javadoc) fg mIx
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pa6.Tp>
*/ &3Q!'pJJ
public void sort(int[] data) { Z*}5M4
int[] temp=new int[data.length]; rl0sN5n
mergeSort(data,temp,0,data.length-1); 8%dE$smH
} ){PL6|5x
me+F0:L
private void mergeSort(int[] data,int[] temp,int l,int r){ y3]7^+k
int mid=(l+r)/2; )L*6xTa~
if(l==r) return ; @o[C
Xrz
mergeSort(data,temp,l,mid); /a?*Ap5"
mergeSort(data,temp,mid+1,r); |,&5.|E 7
for(int i=l;i<=r;i++){ \m3;<A/3n
temp=data; L@"1d.k_
} 0<8pG:BQ
int i1=l; ZZ<uiN$
int i2=mid+1; 5w\>Whbd
for(int cur=l;cur<=r;cur++){ ;<JyA3i^V,
if(i1==mid+1) [84f[`!Ui
data[cur]=temp[i2++]; 1@j0kTJ~m
else if(i2>r) cBl
F
data[cur]=temp[i1++]; =,/08Cs
else if(temp[i1] data[cur]=temp[i1++]; D{]t50a.
else ~JJuM
data[cur]=temp[i2++]; GvL)SVv?
} E,F'k2yU
} q"|,HpQ
\a|FhhI
} P,2FH2Eyj
RJo"yB$1e6
改进后的归并排序: ~VRt6C
j{i3lGaN
package org.rut.util.algorithm.support; 1<y|,
eVobs2s
import org.rut.util.algorithm.SortUtil; 1e 8J-Nkj
_Ra$"j
/** Vt {uG
* @author treeroot 'w?*4H
* @since 2006-2-2 _%M5
T
* @version 1.0 7fVlA "x
*/ hP=^JH
public class ImprovedMergeSort implements SortUtil.Sort { _&Hq`KJm
E^:8Jehq
private static final int THRESHOLD = 10; 7r`A6 \
!
K8sgeX|
/* na;U]IK
* (non-Javadoc) v&hQ;v
* Q-3o k7
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) h}X^
*/ ? 1OZEzA!
public void sort(int[] data) { {9tKq--@E9
int[] temp=new int[data.length]; 2;Ij~~
mergeSort(data,temp,0,data.length-1); 2VrO8q(
} 7q>Y)*V
"ooq1
0P
private void mergeSort(int[] data, int[] temp, int l, int r) { ionFPc].
int i, j, k; Sn I-dXNF
int mid = (l + r) / 2; i@=0fHiZQ
if (l == r) ?onaJ=mT
return; 8X6F6RK6,1
if ((mid - l) >= THRESHOLD) CCCd=s.
mergeSort(data, temp, l, mid); r#ISIgJXG
else Zc_%hQf2A
insertSort(data, l, mid - l + 1); i8F^ N=
if ((r - mid) > THRESHOLD) kZ&|.q1zki
mergeSort(data, temp, mid + 1, r); cmpT_51~O
else qq%\
insertSort(data, mid + 1, r - mid); \`H"4r[?(
)20jZm*
for (i = l; i <= mid; i++) { _Eus<c
temp = data; 82S?@%}#J
} e)pQh&uD
for (j = 1; j <= r - mid; j++) { y4%u<