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。 >YP6/w,e
插入排序: lAjP'(
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package org.rut.util.algorithm.support; VB
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import org.rut.util.algorithm.SortUtil; %`*`HU#X
/** /ZC/yGdIS_
* @author treeroot -L%J,f[&,
* @since 2006-2-2 /.PjHTM<
* @version 1.0 Gk~QgD/Pix
*/ p4l^b[p
public class InsertSort implements SortUtil.Sort{ YrlOvXW
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/* (non-Javadoc) zxN,ys
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) cuv?[M
*/ kU uDA><1
public void sort(int[] data) { +/!kL0[v
int temp; +; /]'
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); \:>GF-Z(
} `qP <S
} "},0Cs
} ODS8bD0!i
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} QuG=am?l`
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冒泡排序: ey 'x3s_
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package org.rut.util.algorithm.support; Djv0]Sm^!
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import org.rut.util.algorithm.SortUtil; BS-nn y
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/** O>8|Lc
* @author treeroot LOm*=MVex
* @since 2006-2-2 ]J<2a`IK!
* @version 1.0 bbGSh|u+P
*/ luA k$Es
public class BubbleSort implements SortUtil.Sort{ DeqTr:
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/* (non-Javadoc) CKC%|xke
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ii0{$}eoh
*/ :X1~
public void sort(int[] data) { +{b!,D3sa*
int temp; )8BGN'jyi
for(int i=0;i for(int j=data.length-1;j>i;j--){ m}t.E
if(data[j] SortUtil.swap(data,j,j-1); _8*}S=
} ~!PAs_O
} )-2sk@y
} 9\2<#,R1q
} <5Ft3sd
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} PwF
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选择排序: CcF$?07 i
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package org.rut.util.algorithm.support; R^_7B(
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import org.rut.util.algorithm.SortUtil; Pv mmyF
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/** e_eNtVq
* @author treeroot @UbH;m
* @since 2006-2-2 z ^e99dz
* @version 1.0 `2}Frw+?
*/ fW/G_
public class SelectionSort implements SortUtil.Sort { ixK&E#
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/* $-HP5Kj(k-
* (non-Javadoc) y r4j
* jO` b&]0
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) ;3 N0)
*/ r>!$eqX_
public void sort(int[] data) { _G$SA-W(
int temp; pN\YAc*@:
for (int i = 0; i < data.length; i++) { hLs<g!*O
int lowIndex = i; x2q6y
for (int j = data.length - 1; j > i; j--) { $0uh8RB
if (data[j] < data[lowIndex]) { RK7vR~kf<
lowIndex = j; wjJM\BKr`
} wR7Ja
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} C*+gQeK
SortUtil.swap(data,i,lowIndex); L5+X&
} R`IFKmA EJ
} &sFEe<
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} iD;pXE{2s%
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Shell排序: %kS4v,I
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package org.rut.util.algorithm.support; E_fH,YJ?9
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import org.rut.util.algorithm.SortUtil; x,U'!F
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/** 2sezZeMV
* @author treeroot tHhau.!
* @since 2006-2-2 s}
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* @version 1.0 W0zRV9"P
*/ ]xx}\k
public class ShellSort implements SortUtil.Sort{ F&tU^(7<
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/* (non-Javadoc) h/)kd3$*'
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) *3uBS2Ld
*/ >
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public void sort(int[] data) { -qI8zs$:5
for(int i=data.length/2;i>2;i/=2){ 4AIo,{(
for(int j=0;j insertSort(data,j,i); 5%qq#;[n
} X.q,
} TFfV?rBI
insertSort(data,0,1); cO8':P5Q
} 5Kadh2nz
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/** $;4y2?E
* @param data 9<e%('@[
* @param j W2$MH: j
* @param i ;\N)RZ
*/ j_(DH2D
private void insertSort(int[] data, int start, int inc) { &["s/!O1 R
int temp; }?\8%hK"a7
for(int i=start+inc;i for(int j=i;(j>=inc)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-inc); t!=qt*
} P{bRRn4Z
} GiZv0>*x
} Mr0<b?I
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} 8vp*U
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快速排序: pmWt7 }
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package org.rut.util.algorithm.support; 1BjMVMH
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import org.rut.util.algorithm.SortUtil; VRb+-T7"
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/** Jbv[Ql#
* @author treeroot R&-Vm3mc3
* @since 2006-2-2 3}7`?$5
* @version 1.0 2l4*6rYa(
*/ '%H\k5^
public class QuickSort implements SortUtil.Sort{ zu,F 0;De
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/* (non-Javadoc) PeX^aEc
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) H|.cD)&eYy
*/ &'V1p4'
public void sort(int[] data) { |]Eli%mNe
quickSort(data,0,data.length-1); F3?PlH:Y
} kS7`g A
private void quickSort(int[] data,int i,int j){ f-!P[6bY
int pivotIndex=(i+j)/2; wv7XhY}
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SortUtil.swap(data,pivotIndex,j); M+L8~BD@
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int k=partition(data,i-1,j,data[j]); )bgaqca_{
SortUtil.swap(data,k,j); 2Y7u M;8
if((k-i)>1) quickSort(data,i,k-1); N|rB~
if((j-k)>1) quickSort(data,k+1,j); baO'FyCs9&
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} R PB%6z$
/** t:O"t
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* @param data KLBX2H2^0
* @param i 7'g{:dzS*3
* @param j = pCO1<wR
* @return Wik8V 0(
*/ W>o>Y$H
private int partition(int[] data, int l, int r,int pivot) { rRQKW_9mB
do{ O
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while(data[++l] while((r!=0)%26amp;%26amp;data[--r]>pivot); 8Y,imj\(v
SortUtil.swap(data,l,r); 2.2G79U,
} \C}_l+nY
while(l SortUtil.swap(data,l,r); mm:g9j
return l; Q1'4xWu
} W^k|*Y|
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} 3F gTM(
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改进后的快速排序: $<s;YhM:u)
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package org.rut.util.algorithm.support; %B~@wcI)W
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import org.rut.util.algorithm.SortUtil; YAsE,M+
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/** a/{M2
* @author treeroot ;{Nc9d
* @since 2006-2-2 |[W7&@hF
* @version 1.0 ccY! OSae
*/
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public class ImprovedQuickSort implements SortUtil.Sort { :pCv!g2
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private static int MAX_STACK_SIZE=4096; k^#+Wma7
private static int THRESHOLD=10; {g]Mx|5Q
/* (non-Javadoc) XQPlhpcv
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) _*.ImD
*/ )gHfbUYS
public void sort(int[] data) { 0}3Xry,{
int[] stack=new int[MAX_STACK_SIZE]; VK>Cf>
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int top=-1; 63fgl+
int pivot; $.F.xYS9IJ
int pivotIndex,l,r; -(lCM/h
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stack[++top]=0; KL\hV .6
stack[++top]=data.length-1; #oD; ?Mi
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while(top>0){ He)!Ez\X
int j=stack[top--]; G@+R!IG
int i=stack[top--]; ( u^ `3=%n
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pivotIndex=(i+j)/2; ^N&@7s
pivot=data[pivotIndex]; X]4j&QB
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SortUtil.swap(data,pivotIndex,j); dvu8V_U
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file://partition JFu9_=%+
l=i-1; cd(YH! 3
r=j; dqgH"g
do{ 6FkBb!ASk
while(data[++l] while((r!=0)%26amp;%26amp;(data[--r]>pivot)); 7V2xg h!W
SortUtil.swap(data,l,r); O?$]/d
} }0}=-g&
while(l SortUtil.swap(data,l,r); LaX<2]Tx:
SortUtil.swap(data,l,j); m0p%R>:5
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if((l-i)>THRESHOLD){ mu{\_JX.A
stack[++top]=i; /liZ|K3A
stack[++top]=l-1; M.9w_bW]#D
} cBtQ2,<6
if((j-l)>THRESHOLD){ uI\6":/u
stack[++top]=l+1; WXQ+`OH7
stack[++top]=j; l.xKv$uOGR
} kfgkZ"9
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} PJL
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file://new InsertSort().sort(data); 7d^ ~.F
insertSort(data); u K=)65]
} @y2cC6+'t
/** oc"7|YG
* @param data \DcO.`L
*/ FGzn|I
private void insertSort(int[] data) { X@ S~D7|ja
int temp; q.bxnta"
for(int i=1;i for(int j=i;(j>0)%26amp;%26amp;(data[j] SortUtil.swap(data,j,j-1); l\WN
} 3}lIY7O
} V-9\@'gc
} .Vrl:
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} >BZ,g!N,J}
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归并排序: C@Wd Pjxj
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package org.rut.util.algorithm.support; 3<>DDY2bl
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import org.rut.util.algorithm.SortUtil; 0"{-<Wot}
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/** bT^(D^
* @author treeroot ^B!()39R?
* @since 2006-2-2 _+OCI%=:
* @version 1.0 jJD*s/o
*/ iu.Jp92
public class MergeSort implements SortUtil.Sort{ !j/54,
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/* (non-Javadoc) W[:CCCDL
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) `<-/e%8
*/ <k 'zz:[c!
public void sort(int[] data) { s6k(K>Pl
int[] temp=new int[data.length]; S1#5oy2
mergeSort(data,temp,0,data.length-1); c8Nl$|B
} Nw '$r
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private void mergeSort(int[] data,int[] temp,int l,int r){ mFmxEv
int mid=(l+r)/2; w:ASB>,!
if(l==r) return ; ZgfhNI\
mergeSort(data,temp,l,mid); B'I_i$g4w
mergeSort(data,temp,mid+1,r); mD%IHzbn
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for(int i=l;i<=r;i++){ [Z^26/5a
temp=data; 7Vuf4Z5
} gs&F
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int i1=l; nrR2U`
int i2=mid+1; K >Q6
for(int cur=l;cur<=r;cur++){ OAaLCpRp
if(i1==mid+1) Dq-[b+bm
data[cur]=temp[i2++]; aeDhC#h
else if(i2>r) .{-X1tJ7
data[cur]=temp[i1++]; ?2q0[T?e
else if(temp[i1] data[cur]=temp[i1++]; V\AY =u
else ZiPz~G0[^
data[cur]=temp[i2++]; \Vpv78QF;
} $Gcjm~
} *z};&UsF{
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} s>)?MB*vb
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改进后的归并排序: fw5+eTQ^
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package org.rut.util.algorithm.support;
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import org.rut.util.algorithm.SortUtil; #pyFIUr=w
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/** xo4lM
* @author treeroot v\E6N2.S
* @since 2006-2-2 Zs8]A0$
* @version 1.0 <7! "8e
*/ ,w
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public class ImprovedMergeSort implements SortUtil.Sort { V.ET uS;
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private static final int THRESHOLD = 10; Ezev
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/* !ST7@D
* (non-Javadoc) {9*
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* T-h[$fxR_
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) +F.@n_}p-I
*/ S LNq%7apx
public void sort(int[] data) { YP[8d,
int[] temp=new int[data.length]; UXh%DOq
mergeSort(data,temp,0,data.length-1); B6@q`Bmw.
} VK!HuO9l
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private void mergeSort(int[] data, int[] temp, int l, int r) { qMoo#UX
int i, j, k; -3 Sb%V\
int mid = (l + r) / 2; ]$#9B-uB
if (l == r) SAdo9m'
return; -q8l"i>h=
if ((mid - l) >= THRESHOLD) ^j2ve's:
mergeSort(data, temp, l, mid); L c
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else >cpv4Pgm
insertSort(data, l, mid - l + 1); Vl3-cW@p
if ((r - mid) > THRESHOLD) .IM]B4m
mergeSort(data, temp, mid + 1, r); 9GsG* $-I
else f^KN8N
insertSort(data, mid + 1, r - mid); X(BX+)YR
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for (i = l; i <= mid; i++) { *sau['Ha
temp = data; fg lN_
} ox_DEg7l
for (j = 1; j <= r - mid; j++) { R"l6|9tmP
temp[r - j + 1] = data[j + mid]; B_D0yhh
} zeq")A
int a = temp[l]; {{B'65Wu
int b = temp[r]; zhbSiw
for (i = l, j = r, k = l; k <= r; k++) { S}cR+d1}h
if (a < b) { ~2nt33"
data[k] = temp[i++]; SurreD<x
a = temp; ?:&2iW7z
} else { @^DVA}*b)
data[k] = temp[j--]; e"*1l>g
b = temp[j]; $:# :"
} w~:F?
} 6(x53y__
} m#R"~ >
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/** |ICn/r~
* @param data >&ZlCE
* @param l `7'^y
* @param i ^>>9?
*/ ,F*HZBNFZ
private void insertSort(int[] data, int start, int len) { A,xPA
for(int i=start+1;i for(int j=i;(j>start) %26amp;%26amp; data[j] SortUtil.swap(data,j,j-1); 5%4yUd#b
} ,CN(;z)
} >ts}\.(]
} R]o0V*n
} Z9MR"!0
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堆排序: {p$@)b
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package org.rut.util.algorithm.support; X
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import org.rut.util.algorithm.SortUtil; t: oQHhO?
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/** Jt#HbAY
* @author treeroot KhP_U{)D
* @since 2006-2-2 U&{w:P
* @version 1.0 8aC=k@YE
*/ _n!>*A!
public class HeapSort implements SortUtil.Sort{ Kv9FqrDj
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/* (non-Javadoc) )q.ZzijG/
* @see org.rut.util.algorithm.SortUtil.Sort#sort(int[]) 8 R7w$3pp\
*/ , s otZT
public void sort(int[] data) { 7h0u7 N
MaxHeap h=new MaxHeap(); q@~{g[
h.init(data); p~Cz6n
for(int i=0;i h.remove(); 7+}WU 4
System.arraycopy(h.queue,1,data,0,data.length); R'6(eA[K
} |z"$^|@d?
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