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。 \Zk<|T61$
插入排序: Fw#wVs)@:
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package org.rut.util.algorithm.support; 8/9YR(H3H
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import org.rut.util.algorithm.SortUtil; toox`|
/** Im`R2_(]
* @author treeroot ~r]$(V n
* @since 2006-2-2 >&qaT*_g
* @version 1.0 3A b_Z
*/ :rmi8!o
public class InsertSort implements SortUtil.Sort{ _ZuI x=!
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/* (non-Javadoc) SMm$4h R
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) oW/H8 q<wY
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public void sort(int[] data) { oA
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int temp; # f{L;
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); jAFJ?L(
} 7mS_Cz+cB
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冒泡排序: 52Q~` t7F
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package org.rut.util.algorithm.support; dC}4Er
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import org.rut.util.algorithm.SortUtil; zU>bT20x/
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/** ViG-tb
* @author treeroot gG6BEsGa,
* @since 2006-2-2 BG@[m
* @version 1.0 -Ly A
*/ xHwcP2 1
public class BubbleSort implements SortUtil.Sort{ A `=.F
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/* (non-Javadoc) C'0=eel[
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) oo,3mat2C
*/ (<5&<JC{
public void sort(int[] data) { 0bMbM^xV6
int temp; T+<OlXpL
for(int i=0;i for(int j=data.length-1;j>i;j--){ o,y{fv:ki
if(data[j] SortUtil.swap(data,j,j-1); /\uW[mt
} |Q~5TL>b
} 6?jSe<4x
} "C%* 'k
} ^cYt4NHXn
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} Q-S5("
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选择排序: t.m C q4{
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package org.rut.util.algorithm.support; xHdv?69,
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import org.rut.util.algorithm.SortUtil; [kg*BaG:
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/** lF1ieg"i M
* @author treeroot ?9AtFT
* @since 2006-2-2 ig,v6lqhM
* @version 1.0 ?t];GNU`l
*/ xYWg1e$k
public class SelectionSort implements SortUtil.Sort { E./Gt.Na
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* (non-Javadoc) yE),GJ-m\<
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) qw%wyj7
*/ _LSf
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public void sort(int[] data) { 9l9|w4YJs
int temp; lvZ:Aw
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for (int i = 0; i < data.length; i++) { Ni 5Su
int lowIndex = i; o.H(&ex|
for (int j = data.length - 1; j > i; j--) { oT27BK26?h
if (data[j] < data[lowIndex]) { p=U5qM.O
lowIndex = j; S~LTLv:>
} o5 eFLJ6
} Nl `8Kcv
SortUtil.swap(data,i,lowIndex); \?.Tq24
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Shell排序: Arb-,[kwN
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package org.rut.util.algorithm.support; X>y6-%@
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import org.rut.util.algorithm.SortUtil; u0& dDZ
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/** WH^rM`9
* @author treeroot R+O[,UM^I~
* @since 2006-2-2 L>EC^2\
* @version 1.0 j8ebVq
*/ 7 V+rQ
public class ShellSort implements SortUtil.Sort{ ?]L:j
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/* (non-Javadoc) wmr8[n&c
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ^yB>0/{)z
*/ U$(AZ|0
public void sort(int[] data) { .AgD`wba
for(int i=data.length/2;i>2;i/=2){ \hwz;V.J"
for(int j=0;j insertSort(data,j,i); x GHS
} SQB[d3f
} )FrXD3p
insertSort(data,0,1); 7o]p0iLej
} /P/S0
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/** J<{@D9r9<~
* @param data M _z-~G
* @param j M6b;
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* @param i isP4*g&%x
*/ a~F`{(Q2
private void insertSort(int[] data, int start, int inc) { t~0}Emgp<(
int temp; jreY'y:
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); wz P")}[0
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快速排序: @9pk-BB^D
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package org.rut.util.algorithm.support; zV }-_u.
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import org.rut.util.algorithm.SortUtil; i+V4_`
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/** 2ajQ*aNq
* @author treeroot Y`u.P(7#
* @since 2006-2-2 q)uq?sZe
* @version 1.0 y8KJoVPiM
*/
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public class QuickSort implements SortUtil.Sort{ ^vmyiF
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/* (non-Javadoc) hD>O LoO
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ~ 0x9`~
*/ b:S#Sz$
public void sort(int[] data) { nO~TW
quickSort(data,0,data.length-1); "yI)F~A
} '%>$\Lv
private void quickSort(int[] data,int i,int j){ ~pqp`
int pivotIndex=(i+j)/2; PQ2u R
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SortUtil.swap(data,pivotIndex,j); =B(zW.Gf
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int k=partition(data,i-1,j,data[j]); v|XEC[F
SortUtil.swap(data,k,j); hNV"{V3`{
if((k-i)>1) quickSort(data,i,k-1); g=;c*{
if((j-k)>1) quickSort(data,k+1,j); ,OLN%2Sq
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} [Uezi1I
/** pt;kN&A^
* @param data {}ZQK
* @param i m.MOn3n]
* @param j otXB:a
* @return (s,*soAN
*/ nJYcC"f
private int partition(int[] data, int l, int r,int pivot) { ipEsR/O
do{ *fq=["O
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); Nd&u*&S
SortUtil.swap(data,l,r); |/g\N,]
} Zjt3U;Y
while(l SortUtil.swap(data,l,r); j+n1k^jC
return l; 7:1c5F~M
} 1X/
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} J*8fGR%
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改进后的快速排序: $+sNjwv^F
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package org.rut.util.algorithm.support; EM*YN=S o
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import org.rut.util.algorithm.SortUtil; YXJjqH3
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/** v.+-)RLQg
* @author treeroot YSt' ]
* @since 2006-2-2 ~_SV`io
* @version 1.0 -\j}le6;c
*/ LD WFc_
public class ImprovedQuickSort implements SortUtil.Sort { Da)[mxJ
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private static int MAX_STACK_SIZE=4096; [t
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private static int THRESHOLD=10;
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/* (non-Javadoc) :JSOj@s
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )L`0VTw'M
*/ 16 o3ER
public void sort(int[] data) { H~@E&qd
int[] stack=new int[MAX_STACK_SIZE]; 2-u>=r0L
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int top=-1; `,&h!h((
int pivot; gydPy*
int pivotIndex,l,r; L&