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。 )u/
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插入排序: eEGcio}_I9
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package org.rut.util.algorithm.support; TIWLp
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import org.rut.util.algorithm.SortUtil; ^*ezj1
/** UMi`u6#
* @author treeroot gIM'bA<~
* @since 2006-2-2 9.OwH(Ax7
* @version 1.0 15T[J%7f
*/ 9AddF*B
public class InsertSort implements SortUtil.Sort{ )'dH}3Ba
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/* (non-Javadoc) )^>XZ*eK
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) t:sq*d
*/ O0(Q0Ko
public void sort(int[] data) { F@'rP++4
int temp; RHl=$Hm.%
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); v;}`?@G
} [x p,&
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冒泡排序: <6O_t,K]
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package org.rut.util.algorithm.support; ZWhmO=b!
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import org.rut.util.algorithm.SortUtil; qM!f
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/** ~& WN)r'4y
* @author treeroot eGSp(o5 6
* @since 2006-2-2 Z*9]:dG:!
* @version 1.0 :Ip:sRz
*/ jM1%6
public class BubbleSort implements SortUtil.Sort{ 69j~?w)^
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/* (non-Javadoc) FJ(B]n[>
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) u6Qf*_- K
*/ ?7nr\g"g(
public void sort(int[] data) { b801OF
int temp; LUDJPIk
for(int i=0;i for(int j=data.length-1;j>i;j--){ PSf5p\<5
if(data[j] SortUtil.swap(data,j,j-1); 71/ m.w
} W
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} 'uf\.F
} q&Tn>B
} o|;eMO-
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} ^g-t#O lD?
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选择排序:
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package org.rut.util.algorithm.support; H1%[\X?=
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import org.rut.util.algorithm.SortUtil; Ph+X{|
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/** lHKf#|
* @author treeroot -?YT Q@ W
* @since 2006-2-2 :EmQ_?( ^
* @version 1.0 KW|\)83$
*/ 4]aiT8))
public class SelectionSort implements SortUtil.Sort { 0oj{e9h
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/* c@ZS|U*(
* (non-Javadoc) w*u{;v#
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) pPyvR;NJ
*/ Q-8'?S
public void sort(int[] data) { mYh5#E41J
int temp; %`?;V;{=
for (int i = 0; i < data.length; i++) { ?)'
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int lowIndex = i; 9XoQO 9*Q
for (int j = data.length - 1; j > i; j--) { ^K.u
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if (data[j] < data[lowIndex]) { phgexAq
lowIndex = j; 6vgBqn[
} 8@%mnyQ
} N=T.l*8
SortUtil.swap(data,i,lowIndex); EY)Gi`lK
} a%T -Z.rd
} gM3]%L_
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Shell排序: {+"g':><
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package org.rut.util.algorithm.support; 2sqm7th
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import org.rut.util.algorithm.SortUtil; V@v1a@=W
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/** OpK.Lsd0y
* @author treeroot -*|:v67C&
* @since 2006-2-2 SY'2A)
* @version 1.0 Ts(t:^
*/ [Y$5zeA
public class ShellSort implements SortUtil.Sort{ 3duG.iUlL
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/* (non-Javadoc) `k(u:yGK
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) }qiF^D}
*/ \9] I#Ih}M
public void sort(int[] data) { X%GD0h]X#
for(int i=data.length/2;i>2;i/=2){ s!#HZK
for(int j=0;j insertSort(data,j,i); zb5N,!%r
} Xb]=:x(
} I( ]BMMj
insertSort(data,0,1); T~%H%O(F
} sn-)(XU!
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/** g/8.W
* @param data {[2tG U9
* @param j }pMP!%|
* @param i "F-Y^
*/ 6ORY`Pe7P|
private void insertSort(int[] data, int start, int inc) { c[VrC+e m
int temp; ?&znUoB
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); *O@sh
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} \Z)#lF|^
} a`H\-G
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} 8F zHNG
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快速排序: _i3i HR?
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package org.rut.util.algorithm.support; J3B6X 8P'
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import org.rut.util.algorithm.SortUtil; Z-)[1+Hs
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/** i`prv&
* @author treeroot YP[LQ>
* @since 2006-2-2 'nRp}s1^[
* @version 1.0 NJZXs_%>$
*/ j$@?62)6
public class QuickSort implements SortUtil.Sort{ [@m[V1D
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/* (non-Javadoc) %O#)Nq>mp
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) HWqLcQ d:P
*/ N-[n\}'
public void sort(int[] data) { "JkZJ#
quickSort(data,0,data.length-1); C"6Amnj
} L@w0N)P<!{
private void quickSort(int[] data,int i,int j){ )`w=qCn1 Y
int pivotIndex=(i+j)/2; Zta$R,[9h
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SortUtil.swap(data,pivotIndex,j); ht?CHUu
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int k=partition(data,i-1,j,data[j]); : *ERRSL)
SortUtil.swap(data,k,j); D"L|"qJ
if((k-i)>1) quickSort(data,i,k-1); R0%?:!
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if((j-k)>1) quickSort(data,k+1,j); $`|5/,M%QN
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} n`]l^qE
/** 81Z4>F:
* @param data }wG,BB %N
* @param i wGPotPdE2
* @param j EMLx?JnP
* @return >):m-I
*/ mA&=q_gS
private int partition(int[] data, int l, int r,int pivot) { QwBXlO?
do{ +p3 Z#KoC
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); p ZtgIS(3
SortUtil.swap(data,l,r); lLH$`Wnv
} zK=dzoy
while(l SortUtil.swap(data,l,r); ITONpg[f
return l; 3[VWTq)D=
} [*<.?9n)or
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} A8J8u,u9
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改进后的快速排序: L?!$EPr
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package org.rut.util.algorithm.support; "Nbos.a]5
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import org.rut.util.algorithm.SortUtil; !Cw!+fZ\l
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/** MSl&?}Bj
* @author treeroot <"?*zx&