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。 @k:f(c
插入排序: _"n1"%Ns
fTiqY72h
package org.rut.util.algorithm.support; c#sPM!!
z3+y|nx!
import org.rut.util.algorithm.SortUtil; y;A<R[|Ve
/** WmU4~.
* @author treeroot ]:`q/iS&
* @since 2006-2-2 eUlF4l<]
* @version 1.0 02E-|p;
*/ ,ButNBv
public class InsertSort implements SortUtil.Sort{ `$oGgz6ZT
4DI.RK9
/* (non-Javadoc) '7G'R
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) <,p|3p3
*/ ?:l3O_U5
public void sort(int[] data) { ,9<}V;(
int temp; 2%4dA$H#4w
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); &.z: i5&o!
} f!hQ"1[
} Sx)b~ *
} $3>k/*=
DpjiE/*
} ^$qr6+
edld(/wu~
冒泡排序: Pk/{~!+
$
NIufL
}6\
package org.rut.util.algorithm.support; dr0<K[S_
<>/0;J1<
import org.rut.util.algorithm.SortUtil; PD$XLZ
"jBrPCB
8
/** Dyv 6K_,
* @author treeroot v}p'vh^8B
* @since 2006-2-2 xCwd*lsM
* @version 1.0 +F3@-A
*/ /Am,5X.
public class BubbleSort implements SortUtil.Sort{ `|K30hRp:
9bvz t8pc
/* (non-Javadoc) B:S/
?v
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *sK")Q4N
*/ OAPR wOQ^=
public void sort(int[] data) { (sLFJ
a6e
int temp; r&sm&4)p-5
for(int i=0;i for(int j=data.length-1;j>i;j--){ WLGk
if(data[j] SortUtil.swap(data,j,j-1); t mAj
} g a|RW0
} bM7y}P5`1
} oC0K!{R*
} m<L.H33'
rT$J0"*=
} ,E,oz {,i(
p12'^i |
选择排序: `Wq4k>J}*
2g
shiY8_
package org.rut.util.algorithm.support; :*|%g
2u 8z>/G
import org.rut.util.algorithm.SortUtil; iu!j#VO
x+Vp&
/** @IL_
* @author treeroot <)n8lIK
* @since 2006-2-2 #\9sCnb
* @version 1.0 #T<<{ RA
*/ EIZSV>
public class SelectionSort implements SortUtil.Sort { sLiKcR8^
',GWH:B
/* :SFcnYv0
* (non-Javadoc) UjLZ!-}
* RbB
y8ZVM
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *Y!'3|T
*/ ;M{@|z[Nv
public void sort(int[] data) { oc.H}Eb%Z
int temp;
d(PS
for (int i = 0; i < data.length; i++) { ?EP>yCR9
int lowIndex = i; BR\3ij
for (int j = data.length - 1; j > i; j--) { L=Cm0q 3v
if (data[j] < data[lowIndex]) { A0{ !m
lowIndex = j; Cv7FVl-I
} 3LXS}~&
} *s4h tt
SortUtil.swap(data,i,lowIndex); zK.%tx}+=k
} R
T/T+Q!
} H^y%Bi&^
;/gH6Z?
} FPj j1U`C
r [; .1,(
Shell排序: SF$'$6x}
#wz1uw[pI!
package org.rut.util.algorithm.support; YC!Tgb~H
lGHU{7j\
import org.rut.util.algorithm.SortUtil; yt,xA;g
Brw-"tmx
/** (!kd9uV
* @author treeroot /G)Y~1ASA%
* @since 2006-2-2 pqmb&"l
* @version 1.0 .b'o}DLa
*/ =TImx.D:
public class ShellSort implements SortUtil.Sort{ tXj28sh$
T=lir%q
/* (non-Javadoc) |+Gv)Rvp
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >q+o
MrU
*/ &k'J5YHm8H
public void sort(int[] data) { vY|{CBGbd
for(int i=data.length/2;i>2;i/=2){ wX(h]X"q
for(int j=0;j insertSort(data,j,i); OO)m{5r,{
} E.*TJ
} ["4sCB@Tr
insertSort(data,0,1); 5 9$B
z'LY
} TI
'(
;-SFK+)R"
/** vrVb/hhG
* @param data U~{fbS3,
* @param j ut26sg{s(
* @param i Y:|_M3&'o
*/ piq1cV
private void insertSort(int[] data, int start, int inc) { T\ ;7'
int temp; .iK{=L/(y
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); QLNQE 6-
} DRS68^
} {&tbp
Bl#
} O'tVZ!C#J
#i$/qk=N
} "#7~}ZB
z"4UObVs
快速排序: E,"?RbG
3`y9V2&b
package org.rut.util.algorithm.support; 4 3cdWd%
cYBv}ylw}R
import org.rut.util.algorithm.SortUtil; 4
ZD~i e
02g!mJW>}y
/** 3SbtN3
* @author treeroot O{b.-<
* @since 2006-2-2
?xTMmm
* @version 1.0 QwaCaYoh
*/ dWR0tS6vR`
public class QuickSort implements SortUtil.Sort{ ,E&PIbDL1
SplEY!.k
/* (non-Javadoc) gFk~SJd
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `-)!4oJ]
*/ x13t@b
public void sort(int[] data) { 8r7}6
quickSort(data,0,data.length-1); (r8Rb*OP
} =`VA_xVu
private void quickSort(int[] data,int i,int j){ 8Ar5^.k
int pivotIndex=(i+j)/2; 7:fC,2+
file://swap 0bY}<x(;
SortUtil.swap(data,pivotIndex,j); `
VL`8
/S}0u}jID?
int k=partition(data,i-1,j,data[j]); wps`2`z
SortUtil.swap(data,k,j); 1.7tXjRd+
if((k-i)>1) quickSort(data,i,k-1); T
KpX]H`
if((j-k)>1) quickSort(data,k+1,j); \@yx;}bdI
2-G he3
} _N`:NOM
/** j3j<01rq
* @param data #=)(t${7'
* @param i 4]c.mDo[T
* @param j =-#>NlB$w
* @return
D{hsa
*/ o*5<Cxg
private int partition(int[] data, int l, int r,int pivot) { QR'yZ45n4
do{ !<!5;f8
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); L_f u<W
SortUtil.swap(data,l,r); yKJKQ9
} Z i-)PK^
while(l SortUtil.swap(data,l,r); >T*/[{L8;
return l; U68o"iE
} Uj!3H]d
fhx_v^<X
} HKA7|z9{
bLMN9wGOgK
改进后的快速排序: Rv9oK-S
{J`Zl1_q
package org.rut.util.algorithm.support; wwnl_9a
"9=F/o9
import org.rut.util.algorithm.SortUtil; !Pnvqgp/
21Z}Zj
/** HWe?vz$4"
* @author treeroot fbF *C V
* @since 2006-2-2 \A
gPkW
* @version 1.0 0(A(Vb5J.T
*/ Jv
public class ImprovedQuickSort implements SortUtil.Sort { an+`>}]F
lq2P10j@
private static int MAX_STACK_SIZE=4096; A%H" a+
private static int THRESHOLD=10; |Sg
FHuA
/* (non-Javadoc) xE/r:D#
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Nh7Dz
*/ 8v&4eU'S
public void sort(int[] data) { 1+;Z0$edxz
int[] stack=new int[MAX_STACK_SIZE]; %T:~N<8)
63b?-.!b
int top=-1; r)$(>/[$
int pivot; %E q}H
int pivotIndex,l,r; c"X` OB
Ktrqrl^IJ
stack[++top]=0; ]MjQr0&M
stack[++top]=data.length-1; 8BUPvaP<[
m9My
while(top>0){ ${"+bWG2G!
int j=stack[top--]; Y.M^tH:
int i=stack[top--]; xA|72!zk0P
Fl,(KSTz
pivotIndex=(i+j)/2; ^8S'=Bk
pivot=data[pivotIndex]; n(-1vN
UEeD Nl$^u
SortUtil.swap(data,pivotIndex,j); ?`PG`|2~
CBC0X}_`
file://partition -)%l{@Mr
l=i-1; qaK9E@l
r=j; HorFQ?8
do{ C[h"w'A2
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); f?O?2g
SortUtil.swap(data,l,r); ~m~<xtoc
} Wi3:;`>G<p
while(l SortUtil.swap(data,l,r); \(9hg.E
SortUtil.swap(data,l,j); |KR;$e&
#K1VPezN
if((l-i)>THRESHOLD){ v]CH
L#
|
stack[++top]=i; s{v!jZ
stack[++top]=l-1; AH$D./a
} 7TCY$RcF,I
if((j-l)>THRESHOLD){ T_}9b
stack[++top]=l+1; >5Vv6_CI0?
stack[++top]=j; H+&c=~D\_
} 7hPiPv
> %5<fK2
} Y#3<w
file://new InsertSort().sort(data); E0XfM B]+
insertSort(data); b(8#*S!U
} T%kr&XsQX
/** tuzw%=Ey
* @param data rwb7>]UI"d
*/ u~Zx9>f
private void insertSort(int[] data) {
^J,Zl`N
int temp; Kj|l]'
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); gzS6{570
} \XaKq8uE
} if6/ +7
} =aM(r6 C
EHByo[
} <-xI!o"}
"F
nH>g-
归并排序: qV^Z@N+,
sJ{S(wpi"
package org.rut.util.algorithm.support; QkJAjmB
fi*@m,-
import org.rut.util.algorithm.SortUtil; $@t]0
37Z@a!#
/** :q_(=EA
* @author treeroot eH.~c3o
* @since 2006-2-2 K&2{k+w
* @version 1.0 4\qnCf3
*/ *c<=IcA
public class MergeSort implements SortUtil.Sort{ .!yXto:
JQCQpn/
/* (non-Javadoc) H+UA
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -%8*>%
*/ ^m^4LDt
public void sort(int[] data) { }GV5':W@WG
int[] temp=new int[data.length]; kk6Af\NZ
mergeSort(data,temp,0,data.length-1); +AGI)uQQ
} iT f]Pd'
Ae,P&(
private void mergeSort(int[] data,int[] temp,int l,int r){ |KF_h^
int mid=(l+r)/2; =+{SZh@
if(l==r) return ; X6lkz*M.
mergeSort(data,temp,l,mid); (* WO<V
mergeSort(data,temp,mid+1,r); [
+w=
for(int i=l;i<=r;i++){ u >R2:i
temp=data; I_|@Fn[>
} C"`,?K(U
int i1=l; 9?8Yf(MC%u
int i2=mid+1; )$[.XKoT
for(int cur=l;cur<=r;cur++){ *&7F(
if(i1==mid+1) ifyWhS++
data[cur]=temp[i2++]; HE>6A|rgDr
else if(i2>r) X=Qa TV
data[cur]=temp[i1++]; aj>6q=R
else if(temp[i1] data[cur]=temp[i1++]; xaQO=[
else 0E[&:6#Y
data[cur]=temp[i2++]; 3aL8GMiu
} 8|FHr,
} /CRZ
rVo0H.+N)`
} =1qM`M
2$G,pT1J
改进后的归并排序: vumA W*
#9Src\V
package org.rut.util.algorithm.support; oHo@rGU
q]}fW)r
import org.rut.util.algorithm.SortUtil; ;onhc*{lv
-_<rmR[:]
/** wGRMv1|lIu
* @author treeroot 9 b?Nlk8d
* @since 2006-2-2 ozF173iI
* @version 1.0 yHrYSEM
*/ Rn(6Fk?
public class ImprovedMergeSort implements SortUtil.Sort { BO6u<cu"-
g9N_s,3jC
private static final int THRESHOLD = 10; oT=XCa5
EZICH&_
/* kkA5pbS
* (non-Javadoc) }:6$5/?
* Pe-1o#7~W
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >M~wFs$~
*/ QQ1|]/)
public void sort(int[] data) { CF|4, K)
int[] temp=new int[data.length]; &x