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。 )!OEa]
插入排序: udw5A*Ls
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package org.rut.util.algorithm.support; W>h[aVTO
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import org.rut.util.algorithm.SortUtil; 2avSsN{^
/** x0
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* @author treeroot |)0kvf?
* @since 2006-2-2 NBLOcRSh
* @version 1.0 j]kx~
*/ UW40Y3W0
public class InsertSort implements SortUtil.Sort{ "&>$/b$
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/* (non-Javadoc) F9Mv$g79
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) &%FpNU9
*/ (LGx;9S?
public void sort(int[] data) { !d^5mati)T
int temp; Vw+U?
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); Dd:Qotu
} ,%D \
} ;K`qSX;;c(
} TqzkF7;k4
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} )=2iGEVW
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冒泡排序: /}(w{6C
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package org.rut.util.algorithm.support; 6 Rg{^E Rf
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import org.rut.util.algorithm.SortUtil; pO x0f;'G+
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/** yn`H }@`k
* @author treeroot @VVBl I
* @since 2006-2-2 v=@Z,-
* @version 1.0 \V}?K0#bt
*/ #dU-*wmJ
public class BubbleSort implements SortUtil.Sort{ -2bu`oD
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/* (non-Javadoc) YJF!_kg.
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) >u~
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*/ :+Y+5:U]
public void sort(int[] data) { >f74]J=V
int temp; 0o c5ahp
for(int i=0;i for(int j=data.length-1;j>i;j--){ yX<Sk q
if(data[j] SortUtil.swap(data,j,j-1); UoBmS5
} *7`;{O
} iVwI}%k
} ^jq QG+`?
} jDOB(fE
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} m)g:@^$
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选择排序: R$_#7>3
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package org.rut.util.algorithm.support; z-ra]
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import org.rut.util.algorithm.SortUtil; eM{,B
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/** YyjnyG
* @author treeroot sO,,i]a0
* @since 2006-2-2 &O7]e3Ej
* @version 1.0 %?@N-$j
*/ g>u{H:
public class SelectionSort implements SortUtil.Sort { /X; [
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/* #J#x,BLI
* (non-Javadoc) +VCG/J
* #px74EeI\
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ?45bvkCT
*/ 2tMe# V
public void sort(int[] data) { 0z.oPV@
int temp; sWa`-gc
for (int i = 0; i < data.length; i++) { ko2 ?q
int lowIndex = i; luY#l!mx3
for (int j = data.length - 1; j > i; j--) { XE6sFU
if (data[j] < data[lowIndex]) { j.=VZ
lowIndex = j; \u9l4
} ER;?[!
} fX^<H_1$G
SortUtil.swap(data,i,lowIndex); :6:;Z
qn
} Hyh$-iCa
} O3x9S,1i
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} 3"!h+dXw
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Shell排序: S ( e]@
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package org.rut.util.algorithm.support; ckykRqk}
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import org.rut.util.algorithm.SortUtil; `bY>f_5+
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/** r01Z
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* @author treeroot ae_Y?g+3
* @since 2006-2-2 R6eKI,y\"
* @version 1.0 4L)#ku$jW
*/ Qu"zzb"k
public class ShellSort implements SortUtil.Sort{ vgKZr
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/* (non-Javadoc) }M7{~ov#s
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) v P;
*/ A6eIf
public void sort(int[] data) { EX@wenR
for(int i=data.length/2;i>2;i/=2){ gc,%A'OR^<
for(int j=0;j insertSort(data,j,i); R2,Z`I
} wIeF(}VM
} /u?ZwoTzY
insertSort(data,0,1); v,,
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} ,6@s N'c
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/** K@U[x,Sx
* @param data \USl9*E
* @param j >oh7f|
* @param i f"9aL= 3
*/ \Hb"bv
private void insertSort(int[] data, int start, int inc) { S*PcK>
int temp; bAOL<0RS9`
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); 5NGQWg
} 5y^I~"_i
} =^ZDP1h/}
} IE]? WW5
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} ^-nL!>FYY
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快速排序: }B1f_T
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package org.rut.util.algorithm.support; o{]2W `0r
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import org.rut.util.algorithm.SortUtil; [Z]%jABR
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/** 88uoA6Y8h
* @author treeroot Oz{FM6
* @since 2006-2-2 Z; 6N7U
* @version 1.0 qzk!'J3*r<
*/ "~2SHM@q
public class QuickSort implements SortUtil.Sort{ ?COLjk
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/* (non-Javadoc) BFnp[93N
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) -sqd?L.p
*/ .o#A(3&n
public void sort(int[] data) { _|jEuif
quickSort(data,0,data.length-1); ZX0#I W
} 0q6xXNAX
private void quickSort(int[] data,int i,int j){ CXiDe)|<E
int pivotIndex=(i+j)/2; V*6o |#
file://swap {Qba`lOkq
SortUtil.swap(data,pivotIndex,j); z&wJ"[nOC
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int k=partition(data,i-1,j,data[j]); He9Er
SortUtil.swap(data,k,j); /Z|K9a
if((k-i)>1) quickSort(data,i,k-1); u(W>HVEG
if((j-k)>1) quickSort(data,k+1,j); vC^Ul
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} 1`Z:/]hl
/**
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* @param data nPW=m`jG
* @param i q x5jaa3
* @param j W\EvMV"
* @return 4|/}~9/
*/ 8hV>Q
private int partition(int[] data, int l, int r,int pivot) { \ gO!6
do{ O>y*u 8
while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 2`^M OGYk
SortUtil.swap(data,l,r);
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} V7<w9MM
while(l SortUtil.swap(data,l,r); fnJx$PD~
return l; y$8S+N?>
} GLp~SeF#
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} )vD:
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改进后的快速排序: a)S{9q}%
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package org.rut.util.algorithm.support; sK@]|9ciQ
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import org.rut.util.algorithm.SortUtil; K-b`KcX
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/** uCx6/n6'
* @author treeroot ujW C!*W(Q
* @since 2006-2-2 oD3]2o /
* @version 1.0 C1==a FD
*/ Q_6v3no1
public class ImprovedQuickSort implements SortUtil.Sort { BU<Qp$&
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private static int MAX_STACK_SIZE=4096; o&$Of
private static int THRESHOLD=10; 6 \?GY
/* (non-Javadoc) V'FKgzd
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) #Xk/<It
*/ 8I~*9MUp
public void sort(int[] data) { {nMCU{*k
int[] stack=new int[MAX_STACK_SIZE]; {)I&&fSz
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int top=-1; SaOOD-u
int pivot; Mtaky=l8~I
int pivotIndex,l,r; *P\OP'o_
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stack[++top]=0; _"t"orD6
stack[++top]=data.length-1; |RH^|2:x9Q
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while(top>0){ siOyp]
int j=stack[top--]; b63DD(
int i=stack[top--]; +h? Gps
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pivotIndex=(i+j)/2; ky{@*fg.
pivot=data[pivotIndex]; =d$m@rc0r
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SortUtil.swap(data,pivotIndex,j); )TcD-Jr
'soll[J
file://partition C:_-F3|]cJ
l=i-1; J;k8 a2$_
r=j; r*c x_**
do{ xB_78X1
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); * $|9e
SortUtil.swap(data,l,r); g*WY kv
} *|,ye5"
while(l SortUtil.swap(data,l,r); %<>|cO
SortUtil.swap(data,l,j); F6ZL{2$k@
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if((l-i)>THRESHOLD){ x|*m ok
stack[++top]=i; * Na8w'Q
stack[++top]=l-1; Xc9NM1bp=
} {>d\
if((j-l)>THRESHOLD){ >CYz6G j
stack[++top]=l+1; Hv*+HUc(:
stack[++top]=j; _4LDzVjNRe
} ?]\v%[ho
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} nFjaV`6`@
file://new InsertSort().sort(data); 2UMX%+ "J
insertSort(data); >&JS-jFg
} ^V"08
/** 2E.D0E Cu
* @param data r@CbhD
*/ qhmA)AWG>
private void insertSort(int[] data) { #TIlM]5%
int temp; s,j=Kym%
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); L-|u=c-6
} E8.1jCL>{"
} o;v_vCLO
} -+Z&O?pSH
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} %O*)'ni
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归并排序: xgIb4Y%
yW;]J87*
package org.rut.util.algorithm.support; lrmz'M'
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import org.rut.util.algorithm.SortUtil; }O:l]O`
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/** bKQ-PM&I/t
* @author treeroot fK4NmdTV
* @since 2006-2-2 ~Dj_N$_+9
* @version 1.0 Lmc"qFzK
*/ lmx'w
public class MergeSort implements SortUtil.Sort{ {WuUzq`
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/* (non-Javadoc) Gu%}B@ 4^
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) TYedem<$
*/ {+ WI>3
public void sort(int[] data) { mam(h{f$
int[] temp=new int[data.length]; Ns-3\~QSi
mergeSort(data,temp,0,data.length-1); G TW5f
} lsOZ%p%fV
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private void mergeSort(int[] data,int[] temp,int l,int r){ &z"yls
int mid=(l+r)/2; FD^s5>"Y+
if(l==r) return ; mg
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mergeSort(data,temp,l,mid); #.<(/D+
mergeSort(data,temp,mid+1,r); AeEF/*
for(int i=l;i<=r;i++){ bAL!l\&2
temp=data; A"T*uv|
} T]?QCf
int i1=l; B3yp2tncj
int i2=mid+1; +w+qTZyky
for(int cur=l;cur<=r;cur++){ xcN
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if(i1==mid+1) ]dHV^!
data[cur]=temp[i2++]; Mh5 =]O+
else if(i2>r) xJ)vfo
data[cur]=temp[i1++]; R1\$}ep^
else if(temp[i1] data[cur]=temp[i1++]; -;t]e6[
else fYgX|#Me
data[cur]=temp[i2++]; K[i|OZWu
} nNcmL/(
} u/4|Akui
zbP#y~[
} /N`E4bKBR
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改进后的归并排序: 3EX41)u
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package org.rut.util.algorithm.support; oW8 hC
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import org.rut.util.algorithm.SortUtil; [X=Ot#?u ~
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/** ch]Q% M
* @author treeroot ' Y.s}Duj
* @since 2006-2-2 @W*Zrc1NF
* @version 1.0 c>e~$b8
*/ F anA~
public class ImprovedMergeSort implements SortUtil.Sort { S-)%#
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private static final int THRESHOLD = 10; fm'Qifq^
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/* 0:3<33]x
* (non-Javadoc) 0x8aKq\'
* P6o-H$
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* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) P7kb*
*/ 6WX+p3Kv
public void sort(int[] data) { ue#Yh
int[] temp=new int[data.length]; @@Vf"o+S
mergeSort(data,temp,0,data.length-1); ~<w9a]
} }u8 D5Q<(
=H2.1 :'
private void mergeSort(int[] data, int[] temp, int l, int r) { qlfYX8edZ
int i, j, k; ,-{2ai_
int mid = (l + r) / 2; xt"GO
b
if (l == r) 3re|=_
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return; \~bE|jWbj
if ((mid - l) >= THRESHOLD) '1yy&QUZq
mergeSort(data, temp, l, mid); (@1*-4l
else hh>mX6A
insertSort(data, l, mid - l + 1); ckPI^0A!
if ((r - mid) > THRESHOLD) f ")*I
mergeSort(data, temp, mid + 1, r); J|2OmbJ e
else QGV~Y+
insertSort(data, mid + 1, r - mid); ?$LKn2C
b
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for (i = l; i <= mid; i++) { !{L`Zd;C>w
temp = data; +yd(t}H@
} F,-S&d
for (j = 1; j <= r - mid; j++) { E>3fk
temp[r - j + 1] = data[j + mid]; `CQMvX{
} Wg2Y`2@t
int a = temp[l]; l4s_9
int b = temp[r]; %8lF%uu!x
for (i = l, j = r, k = l; k <= r; k++) { K@zzseQ}=
if (a < b) { pC'GKk 8
data[k] = temp[i++]; =D2x@ank[
a = temp; < l%3P6|
} else { x0!5z1KQh
data[k] = temp[j--]; ;Y>cegG\
b = temp[j]; $!_]mz6*
} ,
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} uM9[
} jTJ]: EN
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/** -6KGQc}U
* @param data :LwNOuavN
* @param l h[0,/`qb{
* @param i :5`BhFAd
*/ ?E?dg#yk
private void insertSort(int[] data, int start, int len) { $G5;y>
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); yprf
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} tj_+0J$sw:
} &[hq !v
} &k+'TcWm
} 6n.W5
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堆排序: 1MCHwX3/
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package org.rut.util.algorithm.support; FaNH+LPe
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import org.rut.util.algorithm.SortUtil; \e/'d~F
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/** /v1Rn*VF!
* @author treeroot D$RQD{*
* @since 2006-2-2 9
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* @version 1.0 ^p0BeSRiy;
*/ FasA f(3
public class HeapSort implements SortUtil.Sort{ {yy^DlHb
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/* (non-Javadoc) : qKxm(
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +Zx+DW cq
*/ O&!tW^ih
public void sort(int[] data) { U.
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MaxHeap h=new MaxHeap(); xrK%3nA4s"
h.init(data); MU^7(s="
for(int i=0;i h.remove(); /2&