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。
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插入排序: ^b5+A6?
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package org.rut.util.algorithm.support; v\G7V
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import org.rut.util.algorithm.SortUtil; 7>MG8pf3a
/** ,']CqhL6=R
* @author treeroot hfbu+w):
* @since 2006-2-2 n;=FD;}j+
* @version 1.0 _(:$
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*/ abS~'r14
public class InsertSort implements SortUtil.Sort{ wS,fj gX
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/* (non-Javadoc) ?ZC!E0]
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) jbZTlG
*/ 7p!f+\kM
public void sort(int[] data) { rZB='(?
int temp; bnvY2-O6
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); :F[s
} se>\5k
} ,S(Z\[x0
} [P~7kNFOh
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冒泡排序: $f+I#uJ
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package org.rut.util.algorithm.support; ,1CmB@
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import org.rut.util.algorithm.SortUtil; {!?M!/d
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/** "G*$#
* @author treeroot ui`EODhA(
* @since 2006-2-2 Q qj9o2
* @version 1.0 :,$"Gk
*/ %}~(%@qB>+
public class BubbleSort implements SortUtil.Sort{ (5:pHX`P
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/* (non-Javadoc) L|s\IM1g
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) tZg)VJQys
*/ 6#jql
public void sort(int[] data) { 87S,6 Y
int temp; T <k;^iqR
for(int i=0;i for(int j=data.length-1;j>i;j--){ 2g_mQT
if(data[j] SortUtil.swap(data,j,j-1); (5+g:mSfr
} %`]!atH
} jVoD9H
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} PX23M|$!
} b-@9Xjv
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} 0/!0W%f[}
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选择排序: suWO:]FR
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package org.rut.util.algorithm.support; `YZl2c<w*
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import org.rut.util.algorithm.SortUtil; VhMVoW
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/** *h).V&::O
* @author treeroot fJk'5kv
* @since 2006-2-2 ]8$H 'u(C
* @version 1.0 CZ$B2i6
*/ ~5Mj:{B
public class SelectionSort implements SortUtil.Sort { k*,+ag*j
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/* lMg#zT!?
* (non-Javadoc) _.]mES|
* >/}p{Tj
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Fe:
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*/ eMV8`&c'
public void sort(int[] data) { H~Uy/22aQy
int temp; `e3$jy@
for (int i = 0; i < data.length; i++) { SG0PQ
int lowIndex = i; ]Z=al`-
for (int j = data.length - 1; j > i; j--) { -lv(@7o~
if (data[j] < data[lowIndex]) { 1Q9Hs(s
lowIndex = j; K:AP 0Te
} x`I Wo:j
} 0u( 0*Xl
SortUtil.swap(data,i,lowIndex); OkT@ _U
} Ar?ZU ASJ
} >mEfd=p
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} YvP62c \
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Shell排序: Ux= B*m1@{
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package org.rut.util.algorithm.support; 6zNWDUf
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import org.rut.util.algorithm.SortUtil; ^~bdAO81
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/** >w.%KVBJ
* @author treeroot B/n~ $
* @since 2006-2-2 Q%J,:J
* @version 1.0 :!?Fq/!
*/ yA_ly <
public class ShellSort implements SortUtil.Sort{ =
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/* (non-Javadoc) bF+j%=
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) f4+wP/n&
*/ E m +&I
public void sort(int[] data) { #,XZ @u+
for(int i=data.length/2;i>2;i/=2){ 2*Pk1vrI
for(int j=0;j insertSort(data,j,i); lq,]E/<&
} IX<9_q
} .4$F~!aj9
insertSort(data,0,1); &1`Y&x:p
} +KNd%AJ
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/** Eelv i5
* @param data #qD[dC$[t
* @param j U^U
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* @param i se=^K#o
*/ BD86t[${W
private void insertSort(int[] data, int start, int inc) { pFwJ:
int temp; k9:|CEP
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); [cl+AV "
} Ip)u6We>I
} Yw5-:w0f
} N`N?1!fM<}
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} ;vX1U8
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快速排序: ?cKTeGrS
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package org.rut.util.algorithm.support; }:;UnE}
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import org.rut.util.algorithm.SortUtil; 3?L[ohKH?:
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/** 8pftc) k
* @author treeroot qfxEo76'
* @since 2006-2-2 t imY0fx#
* @version 1.0 &rPAW V'v
*/ }&2,!;"">3
public class QuickSort implements SortUtil.Sort{ GA[D@Wy
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/* (non-Javadoc) }5(_gYr
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) V6HZvuXV!
*/ z~3ubta8(@
public void sort(int[] data) { ]BbV\#
quickSort(data,0,data.length-1); etiUt~W
} vN],9q
private void quickSort(int[] data,int i,int j){ -Pt E+R[A
int pivotIndex=(i+j)/2; <3@nv%
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SortUtil.swap(data,pivotIndex,j); nAl
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int k=partition(data,i-1,j,data[j]); SM
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SortUtil.swap(data,k,j); /}>8|#U3y
if((k-i)>1) quickSort(data,i,k-1); Xn%7{%;h
if((j-k)>1) quickSort(data,k+1,j); |UWIV
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} { >izfG,\
/** XE<5(
* @param data Dbj?l;'1
* @param i ||pOiR5
* @param j f~a
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* @return Is3Y>oX
*/ ,
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private int partition(int[] data, int l, int r,int pivot) { [#Gu?L_W
do{ \:1$E[3v
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); p.g> +7
SortUtil.swap(data,l,r); *qSvSY*
} yGt[Qvx#
while(l SortUtil.swap(data,l,r); =CD6x=
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return l; Tr:@Dv.O
}
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改进后的快速排序: E.NfVeq
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package org.rut.util.algorithm.support; .txtt?ZF2
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import org.rut.util.algorithm.SortUtil; SUMfebW5
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/** WR#h~N
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* @author treeroot tyW[i8)O}
* @since 2006-2-2 9H4"=!AAgD
* @version 1.0 E`^D9:3:)
*/ 5p!{#r6m
public class ImprovedQuickSort implements SortUtil.Sort { 3-:^mRPJ
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private static int MAX_STACK_SIZE=4096; rqN+0CT
private static int THRESHOLD=10; n5A|Zjk;
/* (non-Javadoc) R-Lpgi<a"
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) dZ(Z]`L,B
*/ ETL7|C"
public void sort(int[] data) { @"fv[=Xb
int[] stack=new int[MAX_STACK_SIZE]; H9TeMY
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int top=-1; }6%\/d1~ 6
int pivot; &XCd2
int pivotIndex,l,r; $=E4pb4Y
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stack[++top]=0; Y&=DjKoVh
stack[++top]=data.length-1; sRcd{)|Cq
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while(top>0){ $X)|`$#pL#
int j=stack[top--]; fI0"#iv}
int i=stack[top--]; MH'%E^n `
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pivotIndex=(i+j)/2; i.On{nB"k
pivot=data[pivotIndex]; oO?+2pTQV
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SortUtil.swap(data,pivotIndex,j); 5,f`5'$
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l=i-1; v
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r=j;
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do{ cL4Go,)w
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); _,K[kVn
SortUtil.swap(data,l,r); }eZ\~2
} ynMYf
while(l SortUtil.swap(data,l,r); ~e[qh+
SortUtil.swap(data,l,j); mpwh=
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if((l-i)>THRESHOLD){ Px?"5g#+
stack[++top]=i; ^2rj);{V
stack[++top]=l-1; Ei]SksV>*
} v.:Q& ]
if((j-l)>THRESHOLD){ E x_dqko
stack[++top]=l+1; X~o;jJC
stack[++top]=j; v4 rO 0y=C
} E3S0u7Es
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} 1 <T|
file://new InsertSort().sort(data); X[<#B5
insertSort(data); oM@%2M_O(
} a[zVC)N0
/** Txe*$T,(
* @param data s-SFu
*/ N,9~J"z
private void insertSort(int[] data) { @ kv~2m
int temp; M{)eA<6
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); wt@TR~a
} yF|yZ{
} q%A>q;l:
} oIj/V|ByK
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} 8VG~n?y
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归并排序: CUC]-]8
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package org.rut.util.algorithm.support; rB(Q)N
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import org.rut.util.algorithm.SortUtil; dn=srbJ
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/** 4V]xVma
* @author treeroot d= vD Pf
* @since 2006-2-2 Z5wQhhH
* @version 1.0 EXW?)_pg
*/ =:R${F
public class MergeSort implements SortUtil.Sort{ zC[LcC*+J
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/* (non-Javadoc) l_2l/ff9
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) rniL+/-uU
*/ j[$+DCO#|m
public void sort(int[] data) { l%
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int[] temp=new int[data.length]; yVPFH~1@\
mergeSort(data,temp,0,data.length-1); ~<Wa$~oY
} 0&&P+adk
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private void mergeSort(int[] data,int[] temp,int l,int r){ =:xJZy$
int mid=(l+r)/2; 8)`
if(l==r) return ; \0qFOjVj
mergeSort(data,temp,l,mid); f
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mergeSort(data,temp,mid+1,r); j~;y~Cx?
for(int i=l;i<=r;i++){ !HXsxNe
temp=data; n|QA\,=
} m<MN.R7
int i1=l; %$_?%X0=t
int i2=mid+1; ^b.fci{1m
for(int cur=l;cur<=r;cur++){ yM-%x1r~
if(i1==mid+1) 0r&FH$
data[cur]=temp[i2++]; W^H[rX}=
else if(i2>r) `I|Y7GoUO
data[cur]=temp[i1++]; l,b_'
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else if(temp[i1] data[cur]=temp[i1++]; h{)`W
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else 6p,}?6^
data[cur]=temp[i2++]; k5)IBO
} OXoEA a
} `soQp2h-
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} MAc/ T.[
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改进后的归并排序: T?-K}PUcQ
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package org.rut.util.algorithm.support; <%`z:G3
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import org.rut.util.algorithm.SortUtil; yN}<l%
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/** z7*mT}Q
* @author treeroot `3UvKqe
* @since 2006-2-2 qMBEJ<o
* @version 1.0 @oMl^UYM=
*/ 57U;\L;ZmZ
public class ImprovedMergeSort implements SortUtil.Sort { F@X8a/;F-
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private static final int THRESHOLD = 10; \'nE{
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/* 00A2[gO9
* (non-Javadoc) C2J@] &