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。 m95;NT1N/g
插入排序: $6yr:2Xvt
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package org.rut.util.algorithm.support; gpe-)hD@R
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import org.rut.util.algorithm.SortUtil; Z=y^9]
/** \
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* @author treeroot Fhbp,CX4p
* @since 2006-2-2 d;LBV<Z?
* @version 1.0 Tsl0$(2W
*/ few=`%/
public class InsertSort implements SortUtil.Sort{ 5JA5:4aev
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/* (non-Javadoc) nuLxOd *n
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) uf}Q{@Ab
*/ @P
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public void sort(int[] data) { z9P;HGuZ
int temp; 7Hp~:i30
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); ,?>:Cdz4
} te8lF{R
} ]x`I@vSf7R
} m~l[Y
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} 7s'r3}B`
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冒泡排序: cT,5xp"a
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package org.rut.util.algorithm.support; Jz'8|o;^
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import org.rut.util.algorithm.SortUtil; h?2 :'Vu]
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/** F` gQ[
* @author treeroot $XO#qOW
* @since 2006-2-2 yct^AN|%
* @version 1.0 /Jw65 e
*/ <-m?l6
public class BubbleSort implements SortUtil.Sort{ H:&|q+K=#
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/* (non-Javadoc) SSG}'W!z
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) OBJk\j+Wi
*/ 4?F7% ^vr
public void sort(int[] data) { vW:XM0
int temp; \IG"Te
for(int i=0;i for(int j=data.length-1;j>i;j--){ Xv1mjHZCC
if(data[j] SortUtil.swap(data,j,j-1); qOd*9AS'|M
} ,c_NXC^X?
} ,6FmU$
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} ,c\3b)ax
} f MDM\&f
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} C!r9+z)<
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选择排序: v5!G/TZ1
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package org.rut.util.algorithm.support; FD*w4U5
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import org.rut.util.algorithm.SortUtil; 8C!D=Vhh
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/** D/=
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* @author treeroot auP6\kpMe
* @since 2006-2-2 p .^#mN
* @version 1.0 (0/)vZc
*/ drZ1D s
public class SelectionSort implements SortUtil.Sort { #`9D,+2iB%
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/* l;gj],*
* (non-Javadoc) Ni4*V3VB
* ,wvzY7%
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8+7=yN(
*/ ve|`I=?2
public void sort(int[] data) { H _%yh,L
int temp; l*Iy:j(B
for (int i = 0; i < data.length; i++) { M!ra3Y
int lowIndex = i; DlXthRM
for (int j = data.length - 1; j > i; j--) { :U7m@3czU
if (data[j] < data[lowIndex]) { P_f>a?OL:
lowIndex = j; )=)=]|3
} #n_uELE
} wEImpsC`
SortUtil.swap(data,i,lowIndex); u*NU MT2
} @Yy:MdREA
} yb(zyGe
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} oqOXRUy
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Shell排序: >{dj6Wo
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package org.rut.util.algorithm.support; dU~DlaEy(
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import org.rut.util.algorithm.SortUtil; 2-3|0<`
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/** jBvZ>H+w~
* @author treeroot *qLOr6
* @since 2006-2-2 -
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* @version 1.0 .7HnWKUV
*/ Z~-A*{u?
public class ShellSort implements SortUtil.Sort{ 2@(Qd3N(
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/* (non-Javadoc) >qSaF
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) \gE3wmSJ,
*/ y!9facg
public void sort(int[] data) { myj^c>1Iz
for(int i=data.length/2;i>2;i/=2){ `2Buf8|a,
for(int j=0;j insertSort(data,j,i); %DQ.f*%
} bD[6)
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} ZZa$/q"
insertSort(data,0,1); ]byj[Gd
} H:ar&o#(
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/** {GS7J
* @param data (BgO<
* @param j z90=,wd
* @param i c{Ax{-'R
*/ uW&P1'X
private void insertSort(int[] data, int start, int inc) { 2
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int temp; MK]S205{
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); Uv6#d":f;
} /:a~;i
}
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} :B=p%C
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} vXnTPjbE
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快速排序: JF >mybB
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package org.rut.util.algorithm.support; n8zh;vuJ
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import org.rut.util.algorithm.SortUtil; (U/xpj}
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/** Q1Z;vzQfg
* @author treeroot 39JLi~j,
* @since 2006-2-2 nTSGcMI
* @version 1.0 35yhe:$nf
*/ {y|y68y0+
public class QuickSort implements SortUtil.Sort{ l}X3uyS
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/* (non-Javadoc) EX8:B.z`57
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >L anuv)O
*/ -aGv#!aIl
public void sort(int[] data) { ]?U:8%
quickSort(data,0,data.length-1); |B4dFI?
} vKDPg p<j
private void quickSort(int[] data,int i,int j){ LX
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int pivotIndex=(i+j)/2; T7n;Bf
file://swap SSi}1
SortUtil.swap(data,pivotIndex,j); oZ%t! Fl1
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int k=partition(data,i-1,j,data[j]); u=#!je
SortUtil.swap(data,k,j); P/t$xqAL
if((k-i)>1) quickSort(data,i,k-1); SsafRK$
if((j-k)>1) quickSort(data,k+1,j); Zx5vIm
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} XLFJ?$)Tro
/** }?>30+42:
* @param data }(J6zo9(x
* @param i lbg!B4,
* @param j |U$oS2U\m
* @return %Q}#x
*/ Jx_ OT C
private int partition(int[] data, int l, int r,int pivot) { hW>@jT"t1C
do{ VX&KGG.6
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); +YhTb
SortUtil.swap(data,l,r); O" ['.b
} &e[/F@\%
while(l SortUtil.swap(data,l,r); $K\\8$Z
return l; p=9G)VO
} V
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} =g/K>B
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改进后的快速排序: )0PUK9
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package org.rut.util.algorithm.support; uxVXnQQ
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import org.rut.util.algorithm.SortUtil; Lc*i[J<s
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/** {Ca#{LeLk
* @author treeroot _V6;`{$WK
* @since 2006-2-2 )e9(&y*o
* @version 1.0 5Z6$90!k
*/ d'^jekh
public class ImprovedQuickSort implements SortUtil.Sort { ]t7<$L
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private static int MAX_STACK_SIZE=4096; 7u\^$25+h
private static int THRESHOLD=10; y| @[?B
/* (non-Javadoc) / $WEO[o
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) Q?7UiTZ
*/ $C(}
public void sort(int[] data) { Jh M.P9
int[] stack=new int[MAX_STACK_SIZE]; ~2V|]Y;s
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int top=-1; *"O7ml]
int pivot; e}kEh+4
int pivotIndex,l,r; mm\J]Cc`
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stack[++top]=0; Bz9!a k~4
stack[++top]=data.length-1; ~WehG<p v[
sR+=<u1
while(top>0){ vitmG'|WG
int j=stack[top--]; Kt;h'?
int i=stack[top--]; >q[ (UV
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pivotIndex=(i+j)/2; DZilK:
pivot=data[pivotIndex]; P<
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SortUtil.swap(data,pivotIndex,j); +/-#yfn!TR
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file://partition :
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l=i-1; k)1K6ug
r=j; 2jOh~-LU
do{ m/Q@ -
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); [- a2<E
SortUtil.swap(data,l,r); t(/e~w
} +I;b,p
while(l SortUtil.swap(data,l,r); :hwZz2Dhi
SortUtil.swap(data,l,j); ] 06LNE
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if((l-i)>THRESHOLD){ 0.~QA+BD:S
stack[++top]=i; bezT\F/\
stack[++top]=l-1; uv/I`[@HK8
} k*w]a
if((j-l)>THRESHOLD){ Ky8sLm@
stack[++top]=l+1; imZi7o
stack[++top]=j; C~yfuPr\B
} 1*Yf[;L
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} bT|a]b:
file://new InsertSort().sort(data); /![S 3Ol
insertSort(data); [YpSmEn}Y
} ?76Wg::
/** *[wy-
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* @param data M-e!F+d{od
*/ \|F4@
private void insertSort(int[] data) { ~>VEg3#F
int temp; kn^RS1m
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); {Uz@`QO3
} |h\e(_G\
} 2%m H
} V}. uF,>V
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} =!w5%|r.
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归并排序: !hrXud=#"
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package org.rut.util.algorithm.support; `MAee8u'
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import org.rut.util.algorithm.SortUtil; Wb+^Ue
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/** +dX1`%RR[
* @author treeroot 6}='/d-[
* @since 2006-2-2 MUhC6s\F
* @version 1.0 4v_?i@,L
*/ m2E$[g
public class MergeSort implements SortUtil.Sort{ F l83
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/* (non-Javadoc) 7g[m,48{
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >6*"g{/
*/ }zY)H9J~
public void sort(int[] data) { #s$b\"4
int[] temp=new int[data.length]; q#:,6HDd
mergeSort(data,temp,0,data.length-1); ZF"f.aV8)
} WPygmti}Be
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private void mergeSort(int[] data,int[] temp,int l,int r){ P~Q5d&1SO
int mid=(l+r)/2; 7-6Z\.-
if(l==r) return ; &$?e D{
mergeSort(data,temp,l,mid); PVP,2Yq!
mergeSort(data,temp,mid+1,r); %jdV8D#Q
for(int i=l;i<=r;i++){ >ygyPl
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temp=data; r(h&=&T6
} BIEc4k5(
int i1=l; J~eY,n.6]
int i2=mid+1; M[}EVt~
for(int cur=l;cur<=r;cur++){ )z&0 g2Am
if(i1==mid+1) \HLI
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data[cur]=temp[i2++]; 9!b,!#=
else if(i2>r) (f#QETiV
data[cur]=temp[i1++]; )SQ*"X4"
else if(temp[i1] data[cur]=temp[i1++]; ?BT\)@h
else +6|Ys
data[cur]=temp[i2++]; Vc.A<(
} Sj]k5(&
} pJrc\`D
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} [t*m$0[:
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改进后的归并排序: 3G9"La,b
fzO4S^mTo8
package org.rut.util.algorithm.support; AFcsbw
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import org.rut.util.algorithm.SortUtil; L&=j O0_
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/** P*oKcq1R
* @author treeroot j}uFp|df<
* @since 2006-2-2 ,B%M P<Rz1
* @version 1.0 xB_F?d40T5
*/ Zx,R6@l
public class ImprovedMergeSort implements SortUtil.Sort { E{kh)-
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private static final int THRESHOLD = 10; aehGT|
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/* EF=.L{
* (non-Javadoc) ZZOBMF7
* lE:X~RO"~
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) (mz5vzyw
*/ CnruaN@
public void sort(int[] data) { ?jbE3fW
int[] temp=new int[data.length]; o"~ODN"L
mergeSort(data,temp,0,data.length-1); @/*{8UBP
} N]R<EBq
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private void mergeSort(int[] data, int[] temp, int l, int r) { :VP4|H#SP
int i, j, k; })!d4EcZf
int mid = (l + r) / 2; G3n* bv
if (l == r) /AV
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return; qp 4.XL
if ((mid - l) >= THRESHOLD) Hy5_iYP5
mergeSort(data, temp, l, mid); C=(-oI n
else F+,X%$A#?
insertSort(data, l, mid - l + 1); JW9^C
if ((r - mid) > THRESHOLD) ,X(P/x{B
mergeSort(data, temp, mid + 1, r); ((^jyQ
else )QE7$|s
insertSort(data, mid + 1, r - mid); *cxmQ
9 +"D8J7
for (i = l; i <= mid; i++) { QW#]i
temp = data; r`XIn#o
} \s?OvqI:
for (j = 1; j <= r - mid; j++) { V2sWcV?
temp[r - j + 1] = data[j + mid]; J2Y-D'*s
} "<ow;ciJF
int a = temp[l]; In^MZ)?
int b = temp[r]; "}Kvx{L8
for (i = l, j = r, k = l; k <= r; k++) { 2K<rK(
if (a < b) { i)f3\?,,
data[k] = temp[i++]; ]'V8{l
a = temp; )tR5JK} AV
} else { @;kw6f:{d
data[k] = temp[j--]; pg~vteq5
b = temp[j]; V&vU her0
} /:v+:-lU
} (-*NRY3*
} Q:eIq<erY
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/** C-d|;R}Ww
* @param data }qmBn`3R
* @param l u8qL?Aj^
* @param i x%d+~U;$&
*/ 3Yf%M66t
private void insertSort(int[] data, int start, int len) { L0uvRge
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); #\N?ka}!
} 'ah|cMRn
} H
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} EQ`;=I3J9y
} HmKvu"3
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堆排序: '<~rV
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package org.rut.util.algorithm.support; ]\5@N7h
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import org.rut.util.algorithm.SortUtil; NCYN .@J
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/** g0Qg]F5D~
* @author treeroot -
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* @since 2006-2-2 !O
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* @version 1.0 \DBoe:0~
*/ '`?\CXX
public class HeapSort implements SortUtil.Sort{ /tRzb8`
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/* (non-Javadoc) R9&T0Q