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。 )z235}P
插入排序: bTQa'y`3
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package org.rut.util.algorithm.support; k +#l;<\2
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import org.rut.util.algorithm.SortUtil; ~gWd63%8x
/** 6mpg&'>
* @author treeroot F0'A/T'ht
* @since 2006-2-2 fb.\V]K
* @version 1.0 ;i9<y8Dha
*/ H4'DL'83
public class InsertSort implements SortUtil.Sort{ {_XrZ(y/
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/* (non-Javadoc) !H|82:`t+
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) UcLNMn|
*/ Z\=04[
public void sort(int[] data) { =PFR{=F
int temp; xPDA475Cw3
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ]8m_* I!
} ?l,
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} @bW[J
} ?
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} 6/mkJj+"
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冒泡排序: NDRW
pG!(6V-x<E
package org.rut.util.algorithm.support; A \MfF
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import org.rut.util.algorithm.SortUtil; 5@ bc(H
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/** OB?S kR
* @author treeroot 0~+NB-L}
* @since 2006-2-2 Mhe|eD#)
* @version 1.0 /lLov.
*/ QN_)3lm
public class BubbleSort implements SortUtil.Sort{ G Sz @rDGY
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/* (non-Javadoc) `E} p77
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3z,v#2
*/ Yzj%{fkh
public void sort(int[] data) { %bIsrQ~B
int temp; .vv5t
for(int i=0;i for(int j=data.length-1;j>i;j--){ Ky[bX
if(data[j] SortUtil.swap(data,j,j-1); X,RT<GNNb
} 6R;)
} T&1-eq>l
} ;".z[l *
} ta&Q4v&-
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} Mn]}s:v
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选择排序: |}_gA
Z0e-W:&;kF
package org.rut.util.algorithm.support; wL'oImE
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import org.rut.util.algorithm.SortUtil; .Qd}.EG
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/** zzX<?6MS
* @author treeroot fd4;mc1T
* @since 2006-2-2 QTVa
* @version 1.0 $ "Afy)Ir
*/ l<:`~\#
public class SelectionSort implements SortUtil.Sort { +.w[6
k_]\(myq
/* RNGO~:k?r
* (non-Javadoc) Ay2b,q
* YVo ao#!
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 4Mk8Cpz
*/ S#,+Z7
public void sort(int[] data) { s~L`53A
int temp; neF8V"-u&
for (int i = 0; i < data.length; i++) { aZ$/<|y~:_
int lowIndex = i; +|6`E3j%
for (int j = data.length - 1; j > i; j--) { V]Sgx00;
if (data[j] < data[lowIndex]) { T-^0:@5o9
lowIndex = j; \H^;'agA
} U<Vy>gIC
} \UOm]z
SortUtil.swap(data,i,lowIndex); k=e`*LB\
} YNI;h%w
} Y.7}
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} ]
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Shell排序: `g--QR
DY8(g=TI|1
package org.rut.util.algorithm.support; "v5ElYG
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import org.rut.util.algorithm.SortUtil; ZNi
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/** tU{\ev$x
* @author treeroot Bhe{L?}0
* @since 2006-2-2 LX\)8~dp
* @version 1.0 6x/s|RWL1
*/ UU[H@ym#
public class ShellSort implements SortUtil.Sort{ W2hA-1
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/* (non-Javadoc) BKay*!'PX
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 3
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*/ QXs8:;T
public void sort(int[] data) { QjJfE<h
for(int i=data.length/2;i>2;i/=2){ V#L'7">VP
for(int j=0;j insertSort(data,j,i); A@2Bs5F
} ;}K62LSR
} Plfdr~$
insertSort(data,0,1); 6WeM rWx
} FAw1o
Z/g]o#
/** nR[^|CAR
* @param data gfN2/TDC]P
* @param j k3>YBf`fC
* @param i
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*/ E{%SR
private void insertSort(int[] data, int start, int inc) { moZm0`WR
int temp; I3(d<+M
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); r[pF^y0
}
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} >g}G}=R~3
} X#`dWNrN
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} :h*a
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快速排序: ?aWx(dVQ
/iG7MC\`
package org.rut.util.algorithm.support; `
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import org.rut.util.algorithm.SortUtil; T$P-<s
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/** i=#F)AD^5#
* @author treeroot x-;`-Uo%
* @since 2006-2-2 !%[S49s
* @version 1.0 ^B]@Lr E^
*/ *x(Jq?5O7X
public class QuickSort implements SortUtil.Sort{ T1bd:mC}n
f<=Fe:1.
/* (non-Javadoc) =w%O a<
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) q-_' W,
*/ G5Yk bw#
public void sort(int[] data) { ,;jGJr
quickSort(data,0,data.length-1); #ekM"p
} /.Q4~Hw%}
private void quickSort(int[] data,int i,int j){ MKg,!TELe
int pivotIndex=(i+j)/2; LW:1/w&pv
file://swap ^+/kr/
SortUtil.swap(data,pivotIndex,j); :Li/=>R^
E=w3=\JP
int k=partition(data,i-1,j,data[j]); Z :nbZHByh
SortUtil.swap(data,k,j); Adx`8}N8
if((k-i)>1) quickSort(data,i,k-1); w/m:{c Hk
if((j-k)>1) quickSort(data,k+1,j); a9Y5
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} tef^ShF]
/** j-b* C2l
* @param data s V
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* @param i T@YGB]*Y
* @param j eV};9VJ$F
* @return vHKlLl>*2
*/ ]?LB?:6
private int partition(int[] data, int l, int r,int pivot) { bGmx7qt#
do{ U[\Vj_?(I
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot);
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SortUtil.swap(data,l,r); ^@6q
} \RG!@$i
while(l SortUtil.swap(data,l,r); diT=x52
return l; kOrl\_!z3
} <L0#O(L
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} UKBJ_r
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改进后的快速排序: ^{yk[tHpS
TnH\O$
package org.rut.util.algorithm.support; 9pSUIl9|j
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import org.rut.util.algorithm.SortUtil; Ym8}ZW-
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/** iCQ>@P]nE
* @author treeroot =:I+6PlF@
* @since 2006-2-2 I PCGt{B~
* @version 1.0 `BXS)xj
*/ zu\`1W^
public class ImprovedQuickSort implements SortUtil.Sort { [.,>wo~
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private static int MAX_STACK_SIZE=4096; ,FSrn~-j9
private static int THRESHOLD=10; Bi%x`4Lf
/* (non-Javadoc) !cX[-}Q
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V"KS[>>f
*/ zTm]AG|0
public void sort(int[] data) { o>]`ac0b}Y
int[] stack=new int[MAX_STACK_SIZE]; b1?xeG#
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int top=-1; FY3IUG
int pivot; X` YwP/D
int pivotIndex,l,r; *ZCn8m:-+
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stack[++top]=0; t#E}NR
stack[++top]=data.length-1; %VNlXHO.
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while(top>0){ Hf gz02Z$
int j=stack[top--]; e]8,:Gd(
int i=stack[top--]; |UUdz_i!:
R
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pivotIndex=(i+j)/2; Fj
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pivot=data[pivotIndex]; L V{Q,DrP
9)dfL?x8V{
SortUtil.swap(data,pivotIndex,j); )X+mV
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file://partition NZLAk~R;0
l=i-1; mh/n.*E7
r=j; 5z$,6T
do{ E2wz(,@
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); $14:(<
SortUtil.swap(data,l,r); uzr\oj+>
} /B3R1kNf|
while(l SortUtil.swap(data,l,r); #o`Ny4sq/
SortUtil.swap(data,l,j); ]3{0J
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if((l-i)>THRESHOLD){ <U Zd;e@
stack[++top]=i; pL1i|O
stack[++top]=l-1; *Nb#W!
} Y$>-%KcKeI
if((j-l)>THRESHOLD){ L71!J0@a#
stack[++top]=l+1; I<oL}f
stack[++top]=j; El_Qk[X|A
} Nh?|RE0t
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} w*7|dZk{
file://new InsertSort().sort(data); h!@,8y[B
insertSort(data); zt24qTKL
} XKOUQc4!R
/** l~s7Ae
* @param data "Y:/=
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*/ C]u',9,
private void insertSort(int[] data) { Q[n\R@
int temp; K+\nC)oG
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); nwI3| &
} =HDI \LD<
} 5/><$06rq
} sfT+i;p
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} 66&EBX}
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归并排序: RSfM]w}Hq#
nv0@xnbz
package org.rut.util.algorithm.support; Lz9#A.
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import org.rut.util.algorithm.SortUtil; Fe&qwq"
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/** }3 m0AQ;K
* @author treeroot FwAKP>6 *
* @since 2006-2-2 2/P"7A=<
* @version 1.0 U'( sn
*/ Fqq6^um
public class MergeSort implements SortUtil.Sort{ NLd``=&
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/* (non-Javadoc) K<sC F[
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k8nLo.O
*/ S0/usC[r
public void sort(int[] data) { \YJy#2K
int[] temp=new int[data.length]; o5o^TW{
mergeSort(data,temp,0,data.length-1); 2C^B_FUg|]
} p0p4Xh1e
*4Fr&^M\
private void mergeSort(int[] data,int[] temp,int l,int r){ e&q?}Ho
int mid=(l+r)/2; mg:!4O$K
if(l==r) return ; ^)yTBn,
mergeSort(data,temp,l,mid); U]~^Z R
mergeSort(data,temp,mid+1,r); GyI-)BlDC
for(int i=l;i<=r;i++){ :,pSWfK H
temp=data; hjx)D
} B6P|Z%E;D6
int i1=l; h&@R| N
int i2=mid+1; Y$8JM
for(int cur=l;cur<=r;cur++){ gIEl.
if(i1==mid+1) Px@/Q
data[cur]=temp[i2++]; [`=LTBt
else if(i2>r) Fig&&b a
data[cur]=temp[i1++]; &F$:Q:* *
else if(temp[i1] data[cur]=temp[i1++]; u'A#%}3
else ,.IEDF<&
data[cur]=temp[i2++]; 2
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} ?/*~;fM
} +?D6T!)
hv$yV%.`
} ^t"iX9
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改进后的归并排序: Tsb{25`+
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package org.rut.util.algorithm.support; {Z;t ^:s#
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import org.rut.util.algorithm.SortUtil; gieJ}Bv
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/** wRNroQ
* @author treeroot 3B0lb"e
* @since 2006-2-2 TB6m0qX(
* @version 1.0 E9!N>0
*/ HHk)ZfWRo
public class ImprovedMergeSort implements SortUtil.Sort { eBN)g^
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private static final int THRESHOLD = 10; _cDF{E+;
AF\T\mtvRm
/* %Tn#-
* (non-Javadoc) ;+ "f
* Jc4L5*Xn/
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) mZk0@C&:6
*/ JHn*->m
public void sort(int[] data) { i@"e,7mSG
int[] temp=new int[data.length]; Ac k}QzXO
mergeSort(data,temp,0,data.length-1); }peBR80tQ
} Jwn AW}=
^W83ByP
private void mergeSort(int[] data, int[] temp, int l, int r) { 9$K;Raz%
int i, j, k; !v#xb3"/
int mid = (l + r) / 2; }71LLzG`/
if (l == r) .~lKBkS`!
return; wz8PtfZ
if ((mid - l) >= THRESHOLD) 6&v?)o
mergeSort(data, temp, l, mid); DLE8+NV8
else V%
TH7@y
insertSort(data, l, mid - l + 1); l":c
if ((r - mid) > THRESHOLD) OIb
mergeSort(data, temp, mid + 1, r); }7<5hn E
else 01a-{&
insertSort(data, mid + 1, r - mid); d?idTcgs
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for (i = l; i <= mid; i++) { 5@osnf?
temp = data; |BMV.Zi
} j{VGClb=T
for (j = 1; j <= r - mid; j++) { &Jc_Fc(M
temp[r - j + 1] = data[j + mid]; ^o?S M^
} rk2xKm^w
int a = temp[l]; +WJ(QZEhD
int b = temp[r]; sf}Dh
for (i = l, j = r, k = l; k <= r; k++) { 3{Nbp
if (a < b) { 2B~wHv
data[k] = temp[i++]; gv15t'y9
a = temp; |8_JY2
R
} else { =?0lA_
0
data[k] = temp[j--]; w-B^
[<
b = temp[j]; j'%4{n
} ~iBgw&Y
} *TW=/+j
} G>qZxy`c
q=HHNjj8
/** ;E2>Ovv
* @param data &>WWzikB*
* @param l /h2b;"
* @param i 8cx=#Me
*/ txql 2
private void insertSort(int[] data, int start, int len) { -a Gcf]6
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); .k{ j]{k
} MWk:sBCqr
} W" "*ASi
} w
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} _:n b&B
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堆排序: ajl
2I/D
6~:Sgt nU
package org.rut.util.algorithm.support; aMARZ)V
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import org.rut.util.algorithm.SortUtil; 57{oh")
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/** 5y2?
f
* @author treeroot uNbH\qd=
* @since 2006-2-2 Sgb*tE)T
* @version 1.0 u.pxz8
*/ (<t_Pru
public class HeapSort implements SortUtil.Sort{ 8?t"C_>*e
lor8@Qz
/* (non-Javadoc) NY$uq+Z>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) I[MgIr^
*/ M/PFPJ >`
public void sort(int[] data) { h.rD}N\L
MaxHeap h=new MaxHeap(); D*5hrkV9
h.init(data); ~cAZB9Fa
for(int i=0;i h.remove(); Oh.ZPG=
System.arraycopy(h.queue,1,data,0,data.length); YIt9M,5/Q
} a^qNJ?R!
%ugHhS!
private static class MaxHeap{ _fFU#k:MU
HWns.[
void init(int[] data){ {eJt,[Y *
this.queue=new int[data.length+1]; 6Q4X6U:WB
for(int i=0;i queue[++size]=data; 3T\l]? z
fixUp(size); JN/UUfj
} wo2@hav
} Z!d7&T}
87!C@XlK_
private int size=0; 'PZ|:9FX!
1L7{p>;-dO
private int[] queue; @YvOoTyb
ivO/;)=t
public int get() { Rx07trfN
return queue[1]; dCYCHHHF
} 0oA{Jix
idc`p?XP
public void remove() { v7
SortUtil.swap(queue,1,size--); =-cwXo{Q.O
fixDown(1); {3a&1'a0g
} `Ycf]2.,$
file://fixdown M`,~ mU
private void fixDown(int k) { m8Vdb"0
int j; r'LVa6e"N
while ((j = k << 1) <= size) { Mk 0+D#
if (j < size %26amp;%26amp; queue[j] j++; Z0!5d<
if (queue[k]>queue[j]) file://不用交换 =rA~7+}
break; s1Ok|31|
SortUtil.swap(queue,j,k); V~DMtB7
k = j; SEwku}
} Kyt)2p
} F+ <Z<q
private void fixUp(int k) { }uHrto3M
while (k > 1) { {U]H;~3 ?
int j = k >> 1; oeSN9O
if (queue[j]>queue[k]) 'k;4 j|<
break; `J<*9dq%
SortUtil.swap(queue,j,k); ,&PE6hn
k = j; 5hj
} f|A
riM
} 4EI7W,y
CHd9l]Rbe
} (YBMsh
yw[ #
} -\ZcOXpMx=
C$Lu]pIL*
SortUtil: .Ig+Dj{)
[P zv4+
package org.rut.util.algorithm;
j1?j6s
eg<bi@C1|
import org.rut.util.algorithm.support.BubbleSort; a)Q!'$"'
import org.rut.util.algorithm.support.HeapSort; k 4/D8(OXw
import org.rut.util.algorithm.support.ImprovedMergeSort; m42T9wSsx
import org.rut.util.algorithm.support.ImprovedQuickSort; WH ?}~u9
import org.rut.util.algorithm.support.InsertSort; I jr\5FA[p
import org.rut.util.algorithm.support.MergeSort; 1"8yLvtn
import org.rut.util.algorithm.support.QuickSort; rrg96WD
import org.rut.util.algorithm.support.SelectionSort; Rtb :nJ8
import org.rut.util.algorithm.support.ShellSort; ]A
FI\$qB\
4p%A8%/q
/** )m6M9eC
* @author treeroot V^y^
;0I}[
* @since 2006-2-2 u$%t)2+$4
* @version 1.0 T +5X0 Nv
*/ A,su;Qh
public class SortUtil { NC&DF