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。 CWG6;NT6m
插入排序: 6^n0[7
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package org.rut.util.algorithm.support; _#s=h_
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import org.rut.util.algorithm.SortUtil; <zy,5IlD
/** }Jh: 8BNuP
* @author treeroot Xy5s^82?
* @since 2006-2-2 #:|+XLL
* @version 1.0 9F-
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*/ 'snn~{hG
public class InsertSort implements SortUtil.Sort{ Z!&Rr~i
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/* (non-Javadoc) a7/-wk
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \WrFqm#
*/ gx:;&4AD
public void sort(int[] data) { lvpc*d|K
int temp; X$\i{p9jw
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); 9Sq%s&
} 5P hX"7
} <U9/InN0[
} EQIo5
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冒泡排序: \cJ-Dd
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package org.rut.util.algorithm.support; W Qzj[
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import org.rut.util.algorithm.SortUtil; q*AQq=
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/** Y'3}G<'%
* @author treeroot asgF1?r
* @since 2006-2-2 ]G}B 0u3
* @version 1.0 's!-80sd
*/ ExXM:1 e26
public class BubbleSort implements SortUtil.Sort{ 0l#)fJo
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/* (non-Javadoc) :9Y$'+ <&H
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) =}fd6ea(o
*/ @C-dG7U.P
public void sort(int[] data) { R,!Q
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int temp; Ld,5iBiO:
for(int i=0;i for(int j=data.length-1;j>i;j--){ B 2.q3T
if(data[j] SortUtil.swap(data,j,j-1); ;#)mLsl
} JH]K/sC>
} s&{Qdf
} Lj%{y.Rj
} q 'a
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} qG9+/u)\
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选择排序: 7W9d6i)
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package org.rut.util.algorithm.support; xaKst
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import org.rut.util.algorithm.SortUtil; =`C4qC_
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/** A?"h@-~2
* @author treeroot UU}7U]9u
* @since 2006-2-2 E}Xka1 Bn
* @version 1.0 N(3R|Ii
*/ r\9TMg`C
public class SelectionSort implements SortUtil.Sort { =FBpo2^QB;
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/* /WnE:3G
* (non-Javadoc) ]y)Q!J )Q
* Q7o5R{.oJ
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) N 6O8Wn
*/ ^yKY'>T#d
public void sort(int[] data) { $ 'QdFkOr
int temp; ]&i+!$N_
for (int i = 0; i < data.length; i++) { =OV2 uq
int lowIndex = i; %xyX8c{sP
for (int j = data.length - 1; j > i; j--) { jB^OP1
if (data[j] < data[lowIndex]) { c;I, O
lowIndex = j; +MO E
} M\+* P,i
} 88a<{5
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SortUtil.swap(data,i,lowIndex); e}cnX`B
} Hwe)Tsh e
} s3lwu :4f
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} =ziy`#fm,
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Shell排序: PG)_L.7rJ
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package org.rut.util.algorithm.support; =O{~Q3z@s
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import org.rut.util.algorithm.SortUtil; NyI;v=
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/** Dd2Lx&9
* @author treeroot m<3v)R[>
* @since 2006-2-2 /k7wwZiY@
* @version 1.0 ij&p4
*/ tnW;E\cR
public class ShellSort implements SortUtil.Sort{
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/* (non-Javadoc) C'9 1d7E
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +3bfD
*/ ? Ekq6uz\)
public void sort(int[] data) { 1}`LTPW9
for(int i=data.length/2;i>2;i/=2){ RyRqH:p)3
for(int j=0;j insertSort(data,j,i); ~' =lou
} voRfjsS~
} ":d*dl
insertSort(data,0,1); jgvh[@uB?
} :?r*p>0$
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/** g^o_\hp
* @param data gf$HuCh|
* @param j -%uy63LbHF
* @param i 5&4F,v[zp
*/ yCM{M
private void insertSort(int[] data, int start, int inc) { <~%t$:
int temp; dB|Te "6
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); u2`xC4>c
} 8g5V,3_6
} gB CC
} .Y/-8H-3v
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} 4IGxI7~27#
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快速排序: TJ2/?p\x
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package org.rut.util.algorithm.support; g+Ph6W
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import org.rut.util.algorithm.SortUtil; ?\yB)Nd y
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/** p\txlT
* @author treeroot AZ8UXq
* @since 2006-2-2 pa]
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* @version 1.0 -v*x V;[
*/ HRRngk#lV
public class QuickSort implements SortUtil.Sort{ O~Uw&Bq
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/* (non-Javadoc) @bQ!zCI
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) k`IrZHMw
*/ 9c5!\m1
public void sort(int[] data) { oBUh]sR{.
quickSort(data,0,data.length-1); &8Wlps`
} ]b\WaS8I
private void quickSort(int[] data,int i,int j){
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int pivotIndex=(i+j)/2; 5~yb
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SortUtil.swap(data,pivotIndex,j); ~iT{8
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int k=partition(data,i-1,j,data[j]); Z)v)\l9d
SortUtil.swap(data,k,j); z`9l<Q/
if((k-i)>1) quickSort(data,i,k-1); {dZ8;Fy4
if((j-k)>1) quickSort(data,k+1,j); 9XN~Ln@}
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} 2?*1~ 5~I
/** KS>Fl->
* @param data 2wOy}:
* @param i I;iR(Hf)?q
* @param j xhD$e=
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* @return 2TCRS#z
*/ &(\@sxAyZ
private int partition(int[] data, int l, int r,int pivot) { $WD +Q@6
do{ @5*xw1B
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); w2<*$~C]
SortUtil.swap(data,l,r); vcD'~)G(*
} i~AJ.@
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while(l SortUtil.swap(data,l,r); 'h:!m/1
return l; (jneEo=vr
} M7pvxChA
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} QW:Z[?39^
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改进后的快速排序: Oylp:_<aT
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package org.rut.util.algorithm.support; r?XDvU
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import org.rut.util.algorithm.SortUtil; 8ok7|DJ
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/** Lj-{t% }
* @author treeroot $ACe\R/%
* @since 2006-2-2 8|_K
* @version 1.0 d TgM"k
*/ g BH?l/
public class ImprovedQuickSort implements SortUtil.Sort { <e^6.!;W
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private static int MAX_STACK_SIZE=4096; up7x)w:
private static int THRESHOLD=10; )muv;Rf`e5
/* (non-Javadoc) ees^O{ 8
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?-M)54b\
*/ Cg?I'1]o6
public void sort(int[] data) { K;kLQ2)
int[] stack=new int[MAX_STACK_SIZE]; /T4VJ{D
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int top=-1; qFGB'mIrFz
int pivot; .k|-Ks|d|
int pivotIndex,l,r; ^K*~
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stack[++top]=0; \c'%4Ao
stack[++top]=data.length-1; TyyRj4>
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while(top>0){ 6;[1Jz]?i
int j=stack[top--]; AzW%+ LUD
int i=stack[top--]; /!o1l\i=5
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pivotIndex=(i+j)/2; jFS'I*1+
pivot=data[pivotIndex]; se"um5N-
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SortUtil.swap(data,pivotIndex,j); nEuct4BcL}
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do{ ^$ZI>L0+
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); "&s9cO.H
SortUtil.swap(data,l,r); -!JlM@
} Ty(yh(oYF`
while(l SortUtil.swap(data,l,r); HK=CP0H
SortUtil.swap(data,l,j); U5 -zB)V
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if((l-i)>THRESHOLD){ @ICejB<
stack[++top]=i; =k_XKxd
stack[++top]=l-1; `mWQWx$V!
} WCWSLEAza
if((j-l)>THRESHOLD){ '&1
stack[++top]=l+1; u>j 5`OXo
stack[++top]=j; qb
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} .) ?2)Fl
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} T;xHIg4
file://new InsertSort().sort(data); f45;fT>
insertSort(data); _-YL!oP
} O>kXysM v>
/** :tg@HyY)
* @param data Cw@k.{*7,
*/ DHSU?o#jY
private void insertSort(int[] data) { V%VrAi.
int temp; 8-W"4)@b
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Q;d+]xj
} H,01o5J
} j
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} ]wJ}-#Kx
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} wCTcGsw W
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归并排序: 8b8e^\l(
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package org.rut.util.algorithm.support; M^!C?(Hx^x
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import org.rut.util.algorithm.SortUtil; n$}R/*
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/** sj?`7kg
* @author treeroot A8CIP:Z
* @since 2006-2-2 "P>$=X~Zi
* @version 1.0 YqK+F=0
*/ -P IA;#Gs
public class MergeSort implements SortUtil.Sort{ BLsdx}
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/* (non-Javadoc) iqc4O
/
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) )M&I)In'
*/ #3 }5cC8_
public void sort(int[] data) { ir( -$*J
int[] temp=new int[data.length]; S&;T_^|
mergeSort(data,temp,0,data.length-1); {Zd)U "
} _#y(w%
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private void mergeSort(int[] data,int[] temp,int l,int r){ P 'FPe55F
int mid=(l+r)/2; t1*BWY
if(l==r) return ; BWqik_
mergeSort(data,temp,l,mid); [MSDk"o&