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。 6&;h+;h
插入排序: #H]c/
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package org.rut.util.algorithm.support; U'LPaf$O
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import org.rut.util.algorithm.SortUtil; t\WU}aKML
/** ~~3*o
* @author treeroot :(YFIW`59
* @since 2006-2-2 4YgO1}%G
* @version 1.0 ~wQ M
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*/ 'Ll'8 ps
public class InsertSort implements SortUtil.Sort{ ~7wLnB
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/* (non-Javadoc) &N*l ?7(
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) c"diNbm[
*/ ! NJGW
public void sort(int[] data) { TDX~?>P
int temp; +45.fo
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); '?Xf(6o1
} ^fj30gw7\5
} A_Y5{6@
} XzBlT( `w
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} #y
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冒泡排序: G2&,R{L6w
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package org.rut.util.algorithm.support; D
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import org.rut.util.algorithm.SortUtil; :Bi 4z(
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/** v0( _4U]/
* @author treeroot 2O}X-/H
* @since 2006-2-2 0j2mTF(C
* @version 1.0 Sqx'nXgO
*/ Te `MIR
public class BubbleSort implements SortUtil.Sort{ NNMn,J
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/* (non-Javadoc) kP1cwmZ7F
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) a4mRu|x
*/ |-TxX:O-
public void sort(int[] data) { |S]T,`7u
int temp; y!T8(
for(int i=0;i for(int j=data.length-1;j>i;j--){ ,n`S
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if(data[j] SortUtil.swap(data,j,j-1); R5xV_;wD
} M eYu
} oA8A
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} h!`KX2~
} P?@o?
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} Dis kGq@T
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选择排序: !AGoI7W}
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package org.rut.util.algorithm.support; MkWbPm)
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import org.rut.util.algorithm.SortUtil; H`,t "I
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/** .hjN*4RY
* @author treeroot xwj{4fzpk{
* @since 2006-2-2
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* @version 1.0 0./Rdf=-1j
*/ iI;np+uYk
public class SelectionSort implements SortUtil.Sort { S263h(H
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/* ;M"[dy`dY
* (non-Javadoc) UgD)O:xaU
* 8@
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jhkXU+4
*/ tF\_AvL_8
public void sort(int[] data) { ANfy+@
int temp; iu$Y0.H@
for (int i = 0; i < data.length; i++) { _YN
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int lowIndex = i; g9Ty%|Q7(
for (int j = data.length - 1; j > i; j--) { c<sq0('`
if (data[j] < data[lowIndex]) { 8T8]g M
lowIndex = j; PAH#yM2Ic
} yyGn<
} Gz4LjMQ
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SortUtil.swap(data,i,lowIndex);
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} Sbeq%Iwm.
} CdMV(
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} CF
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Shell排序: >DN^',FEm
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package org.rut.util.algorithm.support; _w2KUvG-8
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import org.rut.util.algorithm.SortUtil; DcG=u24Xy!
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/** Y~w1_>b
* @author treeroot :
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* @since 2006-2-2 9Q1w$t~Y
* @version 1.0 N,.awA{
*/ g`~;"%u7cn
public class ShellSort implements SortUtil.Sort{ 2wa'WEx
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/* (non-Javadoc) D&pp
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) sXtt$HID=
*/ "'XYW\bI
public void sort(int[] data) { {1+meE
for(int i=data.length/2;i>2;i/=2){ ":qS9vW
for(int j=0;j insertSort(data,j,i); }h* j{b,
} QU(Lv(/O
} #V$sb1u
insertSort(data,0,1); HZjuL.Tj
} `R!2N4|;
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/** ;9q$eK%d
* @param data W@i|=xS?
* @param j MO|Pv j~[
* @param i ,@I\'os
*/ GIfs]zVr`
private void insertSort(int[] data, int start, int inc) { Z-yoJZi
int temp; 5kA D vi.
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 5DO}&%.xt
} Vy^mEsQC+h
} #B
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} G&`5o*).bb
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} O&}R
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快速排序: %d<UMbS^
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package org.rut.util.algorithm.support; *}_i[6_\E
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import org.rut.util.algorithm.SortUtil; 6/vMK<Fz9
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/** 'Mhnu2d
* @author treeroot nFe
* @since 2006-2-2 yo$A0Ti!w
* @version 1.0 -y[y.#o
*/ {hm-0Q
public class QuickSort implements SortUtil.Sort{ *~w?@,}
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/* (non-Javadoc) %e_){28 n
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Mc,p]{<<AV
*/ b,'rz04^
public void sort(int[] data) { QUg<~q)Oq
quickSort(data,0,data.length-1); &vIj(e9Y
} >5zD0!bA
private void quickSort(int[] data,int i,int j){ 9*Fc+/
int pivotIndex=(i+j)/2; Y&y<WN}Q
file://swap F!2VTPm9z
SortUtil.swap(data,pivotIndex,j); $$*0bRfd4=
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int k=partition(data,i-1,j,data[j]); ldc`Y/:{
SortUtil.swap(data,k,j); (a~V<v"
if((k-i)>1) quickSort(data,i,k-1); Yp8XZ3
if((j-k)>1) quickSort(data,k+1,j); V8b^{}nxt
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} NxB/U_j
/** Mko,((>I1
* @param data }uO2x@
* @param i }.=@^-JBA5
* @param j AJ6O>Euq
* @return }:1qK67S
*/ I*mBU^<9V
private int partition(int[] data, int l, int r,int pivot) { @&9<)1F
do{ 84s:cO
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 2P{! n#"
SortUtil.swap(data,l,r); PWfd<Yf!
} BZjL\{IW
while(l SortUtil.swap(data,l,r); q!q=axfMD
return l; w( ic$
} I;9DG8C&v*
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} `_"?$ v2F
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改进后的快速排序: zE7)4!
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package org.rut.util.algorithm.support; q~X}&}UT
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import org.rut.util.algorithm.SortUtil; L:jv%;DM
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/** cCIs~*D
* @author treeroot +!G)N~o
* @since 2006-2-2 5j _[z|W2
* @version 1.0 ZJ[p7XP
*/ "L9pFz</
public class ImprovedQuickSort implements SortUtil.Sort { 5p/.(
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private static int MAX_STACK_SIZE=4096; ^Nysx ~6
private static int THRESHOLD=10; s5X51#J#~
/* (non-Javadoc) En0hjXa
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 0,iG9D7
*/ ?:F Jc[J
public void sort(int[] data) { SV^[)p)
int[] stack=new int[MAX_STACK_SIZE]; P%<MQg|k`
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int top=-1; P_gai7Xg
int pivot; 5o0H7k]
int pivotIndex,l,r; ^HHT>K-m
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stack[++top]=0; :;Npk9P(N
stack[++top]=data.length-1; yzX S{#\
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while(top>0){ b'RBel;W
int j=stack[top--]; 0iz\<'
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int i=stack[top--]; 7qdB
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pivotIndex=(i+j)/2; "2T* w~V&y
pivot=data[pivotIndex]; pz.fZV
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SortUtil.swap(data,pivotIndex,j); a
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file://partition c2d1'l]n
l=i-1; nNRc@9Lt
r=j; )xTu|V
do{ d2g7,axi
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); !ed0
SortUtil.swap(data,l,r); tpP68)<ns
}
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while(l SortUtil.swap(data,l,r); [Fr <tKtB
SortUtil.swap(data,l,j); t<+gyAW
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if((l-i)>THRESHOLD){ qi8~bQ{rH
stack[++top]=i; f^[m~
stack[++top]=l-1; 5J3K3
} t\\<+^[%
if((j-l)>THRESHOLD){ Qr~yHFc1y
stack[++top]=l+1; yeV|j\TJI.
stack[++top]=j; ?jnbm'~S
} ?nf4K/IjZ!
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} ?6:e%YT
file://new InsertSort().sort(data); w X.]O!^X~
insertSort(data); `V?NS,@$
} ` )~CT
/** N2C f(
* @param data <ol?9tm
*/ +^%0/0e
private void insertSort(int[] data) { XZ|\|(6Cc
int temp; {.r9l
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); \Pd>$Q
} H7Pw>Ta ;
} ~8[`(/hj
} j8ac8J,}c
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} g<i>252>
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归并排序: qnw8#!%I
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package org.rut.util.algorithm.support; Qs_]U
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import org.rut.util.algorithm.SortUtil; vz)zl2F5sY
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/** tSaD=# v
* @author treeroot eak+8URo
* @since 2006-2-2 =n MAw&`
* @version 1.0 tU>4?`)E
*/
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public class MergeSort implements SortUtil.Sort{ ]?hlpL
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/* (non-Javadoc) Kj|\ALI':
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) * YTv"
*/ <z{,@Z}
public void sort(int[] data) { ~gOdK-SV*
int[] temp=new int[data.length]; 6,skF^
mergeSort(data,temp,0,data.length-1); QQUZneIDp
} 05;J7T<
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private void mergeSort(int[] data,int[] temp,int l,int r){ ,uS}wJAX
int mid=(l+r)/2; :Y&h'FGZm
if(l==r) return ; F=$U.K~1?
mergeSort(data,temp,l,mid); .c _qMTm"
mergeSort(data,temp,mid+1,r); r6}-EYq=
for(int i=l;i<=r;i++){ |TuFx=~5v
temp=data; .WW|v
} \0^Je>-:U
int i1=l; oF5~|&C
int i2=mid+1; M V~3~h8
for(int cur=l;cur<=r;cur++){ |f+fG=a67V
if(i1==mid+1) =M34
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data[cur]=temp[i2++]; S!7|vb*ko
else if(i2>r) \2)~dV:6+
data[cur]=temp[i1++]; 'tq4-11xB
else if(temp[i1] data[cur]=temp[i1++]; FdMTc(>
else e:= +~F(f
data[cur]=temp[i2++]; ks<+gL{K|i
} 4% 2MY\
} dxF)) Z
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} $`Aps7A
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改进后的归并排序: Iyt.`z
!Bb^M3iA
package org.rut.util.algorithm.support; lf2(h4[1R
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import org.rut.util.algorithm.SortUtil; H`8}w{ft&
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/** Ert`
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* @author treeroot DgC;1U'
* @since 2006-2-2 W/<