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。 .{so
插入排序: hu@7?f_"L/
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package org.rut.util.algorithm.support; 1:NS}r+>3.
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import org.rut.util.algorithm.SortUtil; Re[:qLa]
/** ujzW|HW^v
* @author treeroot ;#QhQx
* @since 2006-2-2 o$J6 ~dn
* @version 1.0 uofLhy!
*/ $kz!zjC'
public class InsertSort implements SortUtil.Sort{ Fb_S&!
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/* (non-Javadoc) GjQfi'vCk
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) %}qbkkZ
*/ WH$HI/%*m
public void sort(int[] data) { 5cTY;@@
int temp; ^R_e
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); @.9I3E-=
} U[8{_h<#
} fE25(wCz7
} CZ=0mWfF
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} Pl
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冒泡排序: RU_L<Lpi
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package org.rut.util.algorithm.support; S+I^!gT
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import org.rut.util.algorithm.SortUtil; dHII.=lT
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/** l4T:d^Eb
* @author treeroot |E^|X!+9
* @since 2006-2-2 /1.rz{wpb
* @version 1.0 U{#xW
*/ iuAq.$oi{
public class BubbleSort implements SortUtil.Sort{ \{v,6JC
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/* (non-Javadoc) g(m_yXIx
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ElR)Gd_ 8
*/ km 5E)_]
public void sort(int[] data) { Ci\? ^
int temp; ~j&?/{7I
for(int i=0;i for(int j=data.length-1;j>i;j--){ Pes =aw
if(data[j] SortUtil.swap(data,j,j-1); 'mV:@].le
} q627<
} e}"wL g]
} tOg=zXm
} P. V\ov7m2
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} 36A;!1
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选择排序: z`#_F}v,m/
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package org.rut.util.algorithm.support; nNR:cGfG
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import org.rut.util.algorithm.SortUtil; 8hB.fau
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/** " $)yB
* @author treeroot lB:l)!]||=
* @since 2006-2-2 J(9=T<%T
* @version 1.0 p_6P`Yx^e
*/ A*0*sZ0
public class SelectionSort implements SortUtil.Sort { p24.bLr
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/* pxplWP,
* (non-Javadoc) HdCk!Fv
* s[V`e2O
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) l,y^HTc}7/
*/ x0G>ktWq<
public void sort(int[] data) { JlIS0hnv
int temp; vttrKVA
for (int i = 0; i < data.length; i++) { >\bPZf)tJ)
int lowIndex = i; %b<%w
for (int j = data.length - 1; j > i; j--) { Zi1YZxF`Y
if (data[j] < data[lowIndex]) { AbY;H
lowIndex = j; a4by^
} SIv[9G6
} <}2A=~
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SortUtil.swap(data,i,lowIndex); 5$^c@ 0
} ^H!Lp[5c
} X;]3$\F
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} b]#~39Iph
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Shell排序: m+T2vi
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package org.rut.util.algorithm.support; cx:jUsb6
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import org.rut.util.algorithm.SortUtil; SALCuo"L
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/** Cyf]`*
* @author treeroot 3@HIpQM3
* @since 2006-2-2 Pz
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* @version 1.0 e7|d=[kW
*/ sZm^&h;
public class ShellSort implements SortUtil.Sort{ 4vGbG:x
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/* (non-Javadoc) )"~=7)~<^
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 2'dG7lLu4
*/ K#)bjxz
public void sort(int[] data) { k4mTZ}6E
for(int i=data.length/2;i>2;i/=2){ _z%\'(l+
for(int j=0;j insertSort(data,j,i); h7RD`k:mF
} 1gAc,s2
} gTD%4V
insertSort(data,0,1); STRyW Ml
} ZjavD^ky
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/** dw99FA6
* @param data !Iko0#4i
* @param j v1K4 $&{F
* @param i a;yV#Y
*/ auoA
private void insertSort(int[] data, int start, int inc) { L]NYYP-
int temp; 3H <`Z4;
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); gQCC>8
} C=EhY+5
} 8fEAYRGd
} c0hdLl;5
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} pfNThMf
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快速排序: ugRV5bUk
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package org.rut.util.algorithm.support; M'vXyb%$1
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import org.rut.util.algorithm.SortUtil; A7e_w
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/** =mAGD*NKu
* @author treeroot 3XBp6`
* @since 2006-2-2 Wd1 IX^7C%
* @version 1.0 5
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*/ uk1v7#p
public class QuickSort implements SortUtil.Sort{ [)bz6\d[
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/* (non-Javadoc) P[6dTZ!\s
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #C'o'%!(
*/ Q0_M-^~WT
public void sort(int[] data) { !zF4 G,W
quickSort(data,0,data.length-1); UU-v;_oP
} }$w4SpR
private void quickSort(int[] data,int i,int j){ (
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int pivotIndex=(i+j)/2; fCs\Q
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SortUtil.swap(data,pivotIndex,j);
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int k=partition(data,i-1,j,data[j]); e(4bx5<*
SortUtil.swap(data,k,j); =/M$
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if((k-i)>1) quickSort(data,i,k-1); zww?
if((j-k)>1) quickSort(data,k+1,j); R^F7a0"
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} W[@"H1bVH
/** ?BXP}]
* @param data t>m8iS>
* @param i #r-j.f}yx
* @param j 0 [*nAo
* @return -aTg>Q|g&
*/ Z={UM/6w
private int partition(int[] data, int l, int r,int pivot) { OME!W w
do{ #a/n5c&6/
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); G >I.
SortUtil.swap(data,l,r); s}z(|IrH
} B6^w{eXN
while(l SortUtil.swap(data,l,r); %kaTQ"PB
return l; aEV|>K=6Y'
} n">?LN-DC
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} ^p'D <!6sK
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改进后的快速排序: kJVM3F%
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package org.rut.util.algorithm.support; pqRO[XEp2
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import org.rut.util.algorithm.SortUtil; N8u_=b{X
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/** >Lo6='G
* @author treeroot 7r:nMPX
* @since 2006-2-2 6C@0[Q\ER
* @version 1.0 8HHgN`_
*/ @#G6z`,
public class ImprovedQuickSort implements SortUtil.Sort { '33Yl+h
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private static int MAX_STACK_SIZE=4096; !W(/Y9g#
private static int THRESHOLD=10; "E4i >g
/* (non-Javadoc) 7"h=MB_
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^F;Z%5P=
*/ \H"/2o%l")
public void sort(int[] data) { 7 UB8N vo
int[] stack=new int[MAX_STACK_SIZE]; Y)@oo=oG
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int top=-1; znGZULa#
int pivot; CfazD??x
int pivotIndex,l,r; h7Shl<f
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stack[++top]=0; QySca(1tN
stack[++top]=data.length-1; )x9nED{
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while(top>0){ =6L:Ix
int j=stack[top--]; ^D>/wX\u
int i=stack[top--]; {H~8'K-
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pivotIndex=(i+j)/2; +c~O0U1
pivot=data[pivotIndex]; 2J>A;x_?
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SortUtil.swap(data,pivotIndex,j); ^ mQ;CMV
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file://partition r!-L`GUm
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r=j; ^5^
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do{ TZ`]#^kU
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); p~k`Z^xY$
SortUtil.swap(data,l,r); hx2!YNx !
} Wr}a\}R
while(l SortUtil.swap(data,l,r); +9=p*3cnp
SortUtil.swap(data,l,j); 3XYIb Xnk
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if((l-i)>THRESHOLD){ 10QNV=yK7s
stack[++top]=i; */fs.G:P
stack[++top]=l-1; v/4X[6(
} 0t/z"
if((j-l)>THRESHOLD){ H/ B^N,oi
stack[++top]=l+1; CC]@`R5
stack[++top]=j; Is#v6:#^
} U:T5o]P<
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} b5iJm-
file://new InsertSort().sort(data); SOi(5]
insertSort(data); ~
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} t9=|* =;9)
/** }I'>r(K
* @param data =*U%j
*/ mF$jC:Tb
private void insertSort(int[] data) { d/-0B<ts
int temp; @)!1#^(}%
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); #L)4|
} {f6A[ZO; J
} ^LQ lfd
} gIf+.^/m1
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} NnSI)*%'
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归并排序: LTlC}3c28f
RQ$o'U9A
package org.rut.util.algorithm.support; SE7 (+r
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import org.rut.util.algorithm.SortUtil; rym\5
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/** 3YZ3fhpw
* @author treeroot /:c,v-
* @since 2006-2-2 UmHJ/DI@
* @version 1.0 (B?xq1Q
*/ &VBD2_T
public class MergeSort implements SortUtil.Sort{ `HZHVV$~
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/* (non-Javadoc) bI6V &Dd
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \T#(rt\j
*/ nms<6kfzL
public void sort(int[] data) { pZ|nn
int[] temp=new int[data.length]; ,"lBS?
mergeSort(data,temp,0,data.length-1); 1:~m)"?I_^
} p<^/T,&I
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