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。 zsR5"Vi=
插入排序: #&?}h)Jr'
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package org.rut.util.algorithm.support; #
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import org.rut.util.algorithm.SortUtil; 2 gca*
/** :"b :uQ
* @author treeroot Vn\jUEC
* @since 2006-2-2 j0 w@ \gO<
* @version 1.0 8:0,jnS
*/ Der'45]*^
public class InsertSort implements SortUtil.Sort{ mX?t|:[b
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/* (non-Javadoc) B(O6qWsL
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) x5rLGt
*/ 4Y4zBD=<
public void sort(int[] data) { @RL'pKab9
int temp; u:B=lZ[
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); &5[+p{2
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} Prc1U)nfo
} /x_AWnU
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冒泡排序: q!~DCv df
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package org.rut.util.algorithm.support; 8U7dd[
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import org.rut.util.algorithm.SortUtil; )HvBceN
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/** 6Tc!=lk
* @author treeroot E}<i?;
* @since 2006-2-2 ~&+ a.@T
* @version 1.0 eZ0-O /_i
*/ EB6X
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public class BubbleSort implements SortUtil.Sort{ oq|`;k
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/* (non-Javadoc) nE2?3 S>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) BN&}g}N
*/ c6y>]8_
public void sort(int[] data) { ,dVJAV7v
int temp; /FC(d5I
for(int i=0;i for(int j=data.length-1;j>i;j--){ 8HHR
if(data[j] SortUtil.swap(data,j,j-1); vo2GFo
} @2-;,VL3
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} :_ =YH+bZ
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选择排序: Q/*|ADoq
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package org.rut.util.algorithm.support; VUz+_)
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import org.rut.util.algorithm.SortUtil; -(ST
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/** GaL UZviJ_
* @author treeroot 9\=SG"e(
* @since 2006-2-2 cqW(9A|8
* @version 1.0 ZPz=\^
*/ NzeiGj
public class SelectionSort implements SortUtil.Sort { Y]uVA`%"b
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/* (A=Z,ed
* (non-Javadoc) $H]NC-\+>
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) W"CG&.
*/ PAxR?2m{
public void sort(int[] data) { S2W@;XvV
int temp; ^\Q%VTM
for (int i = 0; i < data.length; i++) { ZvO1=*
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int lowIndex = i; ~`B]G
for (int j = data.length - 1; j > i; j--) { W/CZ/Mc
if (data[j] < data[lowIndex]) { ta
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lowIndex = j; /WLZyT2
} \=&Z_6Mu
} Gi2Fjq/Y
SortUtil.swap(data,i,lowIndex); *Tr{a_{~C
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} } j;es(~D
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} m&be55M;
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Shell排序: ^=PY6! iW
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package org.rut.util.algorithm.support; r}:U'zlC{
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import org.rut.util.algorithm.SortUtil; UFUEY/q
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/** -%{+\x2
* @author treeroot 9U=6l]Np
* @since 2006-2-2 =A$d)&
* @version 1.0 *19a\m=>oi
*/ q9a6s{,
public class ShellSort implements SortUtil.Sort{ sOS^
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/* (non-Javadoc) nNnfcA&W
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =En1?3?
*/ _9Rj,
public void sort(int[] data) { R\/tKZJjb
for(int i=data.length/2;i>2;i/=2){ _5$L`&
for(int j=0;j insertSort(data,j,i); crSqbL
} Y4X`(\A
} {SRD\&J[
insertSort(data,0,1); fE3%$M[V7
} }1lZW"{e[
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/** uss!E!_%,
* @param data kf9]nIo
* @param j CJs
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* @param i {G<1.
*/ [qkc6sqo
private void insertSort(int[] data, int start, int inc) { (XFF}~>B.
int temp; }nO%q6|\V
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 2+g'ul`
} }jdmeD:
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} kX:1=+{xg
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} `gJ$fTi&
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快速排序: hb)C"q=
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package org.rut.util.algorithm.support; *!3qO^b?
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import org.rut.util.algorithm.SortUtil; Hc8!cATQk
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/** jtE'T}! d
* @author treeroot R4$(NNC+/
* @since 2006-2-2 &yOl}?u
* @version 1.0 T\:*+W37
*/
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public class QuickSort implements SortUtil.Sort{ dNov= w
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/* (non-Javadoc) NZFUC D)
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) :()K2<E
*/ OIjG`~Rx
public void sort(int[] data) { L&uPNcZ`-
quickSort(data,0,data.length-1); _?$w8 S%
} 0(&RmR
private void quickSort(int[] data,int i,int j){ v!3Oq.ot
int pivotIndex=(i+j)/2; F|o1r
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SortUtil.swap(data,pivotIndex,j); R9QW%!:,\2
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int k=partition(data,i-1,j,data[j]); %Q;:nVt
SortUtil.swap(data,k,j); ,\d03wha
if((k-i)>1) quickSort(data,i,k-1); eW}-UeT
if((j-k)>1) quickSort(data,k+1,j); sN5Mm8~
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} pigu]mj
/** SxcE@WM
* @param data Rz6kwh=q
* @param i -@B6 $XWL
* @param j TD4
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* @return HIfi18
*/ F5M|QX@-
private int partition(int[] data, int l, int r,int pivot) { 9F~5Ht
do{ dP]Z:
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); K5??WB63B
SortUtil.swap(data,l,r); eiRVw5g
} WHfl|e
while(l SortUtil.swap(data,l,r); -_]Ceq/
return l; E33x)CP
} l Ttc#
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改进后的快速排序: :R$v7{1
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package org.rut.util.algorithm.support; 54RexB o
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import org.rut.util.algorithm.SortUtil; ]+tO
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/** uv{*f)j/d
* @author treeroot wWq-zGH|&