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2.聽

3.聽

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pascal

1锛�鏁扮粍鍨�

Const

m=鏍堣〃鐩暟鐨勪笂闄愶紱

Type

stack=array[1..m] of stype; {鏍堢被鍨媫

Var

s:stack;{鏍坿

top:integer;

2锛庤褰曞瀷

const

m=鏍堣〃鐩暟鐨勪笂闄愶紱

type

stack=record

elem: array[1..m] of elemtp;

top:0..m; {鏍堥《鎸囬拡}

end;

Var

s:stack;{鏍坿

C++浠g爜

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#include

classSqStack

{

private:

enum{MaxSize=100};

intdata[MaxSize];

inttop;

public:

SqStack();

~SqStack();

boolisEmpty();

voidpushInt(intx);

intpopInt();

intgetTop();

voiddisplay();

};

SqStack::SqStack()

{

top=-1;

}

SqStack::~SqStack(){}

boolSqStack::isEmpty()//鍒ゆ柇鏍堜负绌�

{

return(top==-1);

}

voidSqStack::pushInt(intx)//鍏冪礌杩涙爤

{

if(top==MaxSize-1)

{

std::cout<<"鏍堜笂婧㈠嚭锛�"<

}

else

{

++top;

data[top]=x;

}

}

intSqStack::popInt()//閫�鏍�

{

inttmp=0;

if(top==-1)

{

std::cout<<"鏍堝凡绌猴紒"<

}

else

{

tmp=data[top--];

}

returntmp;

}

intSqStack::getTop()//鑾峰緱鏍堥《鍏冪礌

{

inttmp=0;

if(top==-1)

{

std::cout<<"鏍堢┖锛�"<

}

else

{

tmp=data[top];

}

returntmp;

}

voidSqStack::display()//鎵撳嵃鏍堥噷鍏冪礌

{

std::cout<<"鏍堜腑鍏冪礌锛�"<

for(intindex=top;index>=0;--index)

{

std::cout<

}

}

intmain()

{

SqStackst;

std::cout<<"鏍堢┖锛�"<

for(inti=1;i<10;i++)

{

st.pushInt(i);

}

st.display();

std::cout<<"閫�涓�娆℃爤"<

st.popInt();

std::cout<<"鏍堥《鍏冪礌:"<

st.popInt();

st.display();

return0;

}

C浠g爜

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#include

#include

#defineDataTypeint

#defineMAXSIZE1024

typedefstruct

{

DataTypedata[MAXSIZE];

inttop;

}SeqStack;

SeqStack*Init_SeqStack()//鏍堝垵濮嬪寲

{

SeqStack*s;

s=(SeqStack*)malloc(sizeof(SeqStack));

if(!s)

{

printf("绌洪棿涓嶈冻\n");

returnNULL;

}

else

{

s->top=-1;

returns;

}

}

intEmpty_SeqStack(SeqStack*s)//鍒ゆ爤绌�

{

if(s->top==-1)

return1;

else

return0;

}

intPush_SeqStack(SeqStack*s,DataTypex)//鍏ユ爤

{

if(s->top==MAXSIZE-1)

return0;//鏍堟弧涓嶈兘鍏ユ爤

else

{

s->top++;

s->data[s->top]=x;

return1;

}

}

intPop_SeqStack(SeqStack*s,DataType*x)//鍑烘爤

{

if(Empty_SeqStack(s))

return0;//鏍堢┖涓嶈兘鍑烘爤

else

{

*x=s->data[s->top];

s->top--;

return1;

}//鏍堥《鍏冪礌瀛樺叆*x锛岃繑鍥�

}

DataTypeTop_SeqStack(SeqStack*s)//鍙栨爤椤跺厓绱�

{

if(Empty_SeqStack(s))

return0;//鏍堢┖

else

returns->data[s->top];

}

intPrint_SeqStack(SeqStack*s)

{

inti;

printf("褰撳墠鏍堜腑鐨勫厓绱�:\n");

for(i=s->top;i>=0;i--)

printf("%3d",s->data[i]);

printf("\n");

return0;

}

intmain()

{

SeqStack*L;

intn,num,m;

inti;

L=Init_SeqStack();

printf("鍒濆鍖栧畬鎴怽n");

printf("鏍堢┖锛�%d\n",Empty_SeqStack(L));

printf("璇疯緭鍏ュ叆鏍堝厓绱犱釜鏁帮細\n");

scanf("%d",&n);

printf("璇疯緭鍏ヨ鍏ユ爤鐨�%d涓厓绱狅細\n",n);

for(i=0;i

{

scanf("%d",&num);

Push_SeqStack(L,num);

}

Print_SeqStack(L);

printf("鏍堥《鍏冪礌锛�%d\n",Top_SeqStack(L));

printf("璇疯緭鍏ヨ鍑烘爤鐨勫厓绱犱釜鏁帮紙涓嶈兘瓒呰繃%d涓級锛歕n",n);

scanf("%d",&n);

printf("渚濇鍑烘爤鐨�%d涓厓绱狅細\n",n);

for(i=0;i

{

Pop_SeqStack(L,&m);

printf("%3d",m);

}

printf("\n");

Print_SeqStack(L);

printf("鏍堥《鍏冪礌锛�%d\n",Top_SeqStack(L));

return0;

}

瀹氫箟stack鐨勭畝鍗曚唬鐮侊細

stack sta;

鍏ユ爤锛歴ta.push(x);

鍑烘爤锛歴ta.pop();

鍒ゆ柇鏍堢殑澶у皬锛毬爏ta.size();

鍒ゆ柇鏍堟槸鍚︿负绌猴細sta.empty();

闃熷垪

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闃熷垪鐨勬暟鎹厓绱犲張绉颁负闃熷垪鍏冪礌銆傚湪闃熷垪涓彃鍏ヤ竴涓槦鍒楀厓绱犵О涓哄叆闃燂紝浠庨槦鍒椾腑鍒犻櫎涓�涓槦鍒楀厓绱犵О涓哄嚭闃熴�傚洜涓洪槦鍒楀彧鍏佽鍦ㄤ竴绔彃鍏ワ紝鍦ㄥ彟涓�绔垹闄わ紝鎵�浠ュ彧鏈夋渶鏃╄繘鍏ラ槦鍒楃殑鍏冪礌鎵嶈兘鏈�鍏堜粠闃熷垪涓垹闄わ紝鏁呴槦鍒楀張绉颁负鍏堣繘鍏堝嚭锛團IFO鈥攆irst in first out锛�绾挎�ц〃銆俒1]

椤哄簭闃熷垪

寤虹珛椤哄簭闃熷垪缁撴瀯蹇呴』涓哄叾闈欐�佸垎閰嶆垨鍔ㄦ�佺敵璇蜂竴鐗囪繛缁殑瀛樺偍绌洪棿锛屽苟璁剧疆涓や釜鎸囬拡杩涜绠$悊銆備竴涓槸闃熷ご鎸囬拡front锛屽畠鎸囧悜闃熷ご鍏冪礌锛涘彟涓�涓槸闃熷熬鎸囬拡rear锛屽畠鎸囧悜涓嬩竴涓叆闃熷厓绱犵殑瀛樺偍浣嶇疆锛屽鍥炬墍绀�


姣忔鍦ㄩ槦灏炬彃鍏ヤ竴涓厓绱犳槸锛宺ear澧�1锛涙瘡娆″湪闃熷ご鍒犻櫎涓�涓厓绱犳椂锛宖ront澧�1銆傞殢鐫�鎻掑叆鍜屽垹闄ゆ搷浣滅殑杩涜锛岄槦鍒楀厓绱犵殑涓暟涓嶆柇鍙樺寲锛岄槦鍒楁墍鍗犵殑瀛樺偍绌洪棿涔熷湪涓洪槦鍒楃粨鏋勬墍鍒嗛厤鐨勮繛缁┖闂翠腑绉诲姩銆傚綋front=rear鏃讹紝闃熷垪涓病鏈変换浣曞厓绱狅紝绉颁负绌洪槦鍒椼�傚綋rear澧炲姞鍒版寚鍚戝垎閰嶇殑杩炵画绌洪棿涔嬪鏃讹紝闃熷垪鏃犳硶鍐嶆彃鍏ユ柊鍏冪礌锛屼絾杩欐椂寰�寰�杩樻湁澶ч噺鍙敤绌洪棿鏈鍗犵敤锛岃繖浜涚┖闂存槸宸茬粡鍑洪槦鐨勯槦鍒楀厓绱犳浘缁忓崰鐢ㄨ繃寰楀瓨鍌ㄥ崟鍏冦��

椤哄簭闃熷垪涓殑婧㈠嚭鐜拌薄锛�

锛�1锛壜�"涓嬫孩"鐜拌薄锛氬綋闃熷垪涓虹┖鏃讹紝鍋氬嚭闃熻繍绠椾骇鐢熺殑婧㈠嚭鐜拌薄銆傗�滀笅婧⑩�濇槸姝e父鐜拌薄锛屽父鐢ㄤ綔绋嬪簭鎺у埗杞Щ鐨勬潯浠躲��

锛�2锛�"鐪熶笂婧�"鐜拌薄锛氬綋闃熷垪婊℃椂锛屽仛杩涙爤杩愮畻浜х敓绌洪棿婧㈠嚭鐨勭幇璞°�傗�滅湡涓婃孩鈥濇槸涓�绉嶅嚭閿欑姸鎬侊紝搴旇娉曢伩鍏嶃��

锛�3锛�"鍋囦笂婧�"鐜拌薄锛氱敱浜庡叆闃熷拰鍑洪槦鎿嶄綔涓紝澶村熬鎸囬拡鍙鍔犱笉鍑忓皬锛岃嚧浣胯鍒犲厓绱犵殑绌洪棿姘歌繙鏃犳硶閲嶆柊鍒╃敤銆傚綋闃熷垪涓疄闄呯殑鍏冪礌涓暟杩滆繙灏忎簬鍚戦噺绌洪棿鐨勮妯℃椂锛屼篃鍙兘鐢变簬灏炬寚閽堝凡瓒呰秺鍚戦噺绌洪棿鐨勪笂鐣岃�屼笉鑳藉仛鍏ラ槦鎿嶄綔銆傝鐜拌薄绉颁负"鍋囦笂婧�"鐜拌薄銆�

寰幆闃熷垪

鍦ㄥ疄闄呬娇鐢ㄩ槦鍒楁椂锛屼负浜嗕娇闃熷垪绌洪棿鑳介噸澶嶄娇鐢紝寰�寰�瀵归槦鍒楃殑浣跨敤鏂规硶绋嶅姞鏀硅繘锛氭棤璁烘彃鍏ユ垨鍒犻櫎锛屼竴鏃ear鎸囬拡澧�1鎴杅ront鎸囬拡澧�1聽鏃惰秴鍑轰簡鎵�鍒嗛厤鐨勯槦鍒楃┖闂达紝灏辫瀹冩寚鍚戣繖鐗囪繛缁┖闂寸殑璧峰浣嶇疆銆傝嚜宸辩湡浠嶮axSize-1澧�1鍙樺埌0锛屽彲鐢ㄥ彇浣欒繍绠梤ear%MaxSize鍜宖ront%MaxSize鏉ュ疄鐜般�傝繖瀹為檯涓婃槸鎶婇槦鍒楃┖闂存兂璞℃垚涓�涓幆褰㈢┖闂达紝鐜舰绌洪棿涓殑瀛樺偍鍗曞厓寰幆浣跨敤锛岀敤杩欑鏂规硶绠$悊鐨勯槦鍒椾篃灏辩О涓哄惊鐜槦鍒椼�傞櫎浜嗕竴浜涚畝鍗曞簲鐢ㄤ箣澶栵紝鐪熸瀹炵敤鐨勯槦鍒楁槸寰幆闃熷垪銆俒2]

鍦ㄥ惊鐜槦鍒椾腑锛屽綋闃熷垪涓虹┖鏃讹紝鏈塮ront=rear锛岃�屽綋鎵�鏈夐槦鍒楃┖闂村叏鍗犳弧鏃讹紝涔熸湁front=rear銆備负浜嗗尯鍒繖涓ょ鎯呭喌锛岃瀹氬惊鐜槦鍒楁渶澶氬彧鑳芥湁MaxSize-1涓槦鍒楀厓绱狅紝褰撳惊鐜槦鍒椾腑鍙墿涓嬩竴涓┖瀛樺偍鍗曞厓鏃讹紝闃熷垪灏卞凡缁忔弧浜嗐�傚洜姝わ紝闃熷垪鍒ょ┖鐨勬潯浠舵椂front=rear锛岃�岄槦鍒楀垽婊$殑鏉′欢鏃秄ront=锛坮ear+1锛�%MaxSize銆傞槦绌哄拰闃熸弧鐨勬儏鍐靛鍥撅細


闃熷垪鐨勬暟缁勫疄鐜�

闃熷垪鍙互鐢ㄦ暟缁凲[1鈥]鏉ュ瓨鍌紝鏁扮粍鐨勪笂鐣宮鍗虫槸闃熷垪鎵�瀹硅鐨勬渶澶у閲忋�傚湪闃熷垪鐨勮繍绠椾腑闇�璁句袱涓�鎸囬拡锛歨ead锛岄槦澶存寚閽堬紝鎸囧悜瀹為檯闃熷ご鍏冪礌锛泃ail锛岄槦灏炬寚閽堬紝鎸囧悜瀹為檯闃熷熬鍏冪礌鐨勪笅涓�涓綅缃�備竴鑸儏鍐典笅锛屼袱涓�鎸囬拡鐨勫垵鍊艰涓�0锛岃繖鏃堕槦鍒椾负绌猴紝娌℃湁鍏冪礌銆傛暟缁勫畾涔塓[1鈥�10]銆俀(i) i=3,4,5,6,7,8銆傚ご鎸囬拡head=2锛屽熬鎸囬拡tail=8銆傞槦鍒椾腑鎷ユ湁鐨勫厓绱犱釜鏁颁负:L=tail-head銆傜幇瑕佽鎺掑ご鐨勫厓绱犲嚭闃燂紝鍒欓渶灏嗗ご鎸囬拡鍔�1銆傚嵆head=head+1杩欐椂澶存寚閽堝悜涓婄Щ鍔ㄤ竴涓綅缃紝鎸囧悜Q(3)锛岃〃绀篞(3)宸插嚭闃熴�傚鏋滄兂璁╀竴涓柊鍏冪礌鍏ラ槦锛屽垯闇�灏�鎸囬拡鍚戜笂绉诲姩涓�涓綅缃�傚嵆tail=tail+1杩欐椂Q(9)鍏ラ槦銆傚綋闃熷熬宸茬粡澶勭悊鍦ㄦ渶涓婇潰鏃讹紝鍗硉ail=10锛屽鏋滆繕瑕佹墽琛屽叆闃熸搷浣滐紝鍒欒鍙戠敓"涓婃孩"锛屼絾瀹為檯涓婇槦鍒椾腑杩樻湁涓変釜绌轰綅缃紝鎵�浠ヨ繖绉嶆孩鍑虹О涓�"鍋囨孩鍑�"銆�

鍏嬫湇鍋囨孩鍑�鐨勬柟娉曟湁涓ょ銆備竴绉嶆槸灏嗛槦鍒椾腑鐨勬墍鏈夊厓绱犲潎鍚戜綆鍦板潃鍖虹Щ鍔紝鏄剧劧杩欑鏂规硶鏄緢娴垂鏃堕棿鐨勶紱鍙︿竴绉嶆柟娉曟槸灏�鏁扮粍瀛樺偍鍖虹湅鎴愭槸涓�涓灏剧浉鎺ョ殑鐜舰鍖哄煙銆傚綋瀛樻斁鍒皀鍦板潃鍚庯紝涓嬩竴涓湴鍧�灏�"缈昏浆"涓�1銆傚湪缁撴瀯涓婇噰鐢ㄨ繖绉嶆妧宸ф潵瀛樺偍鐨勯槦鍒楃О涓�寰幆闃熷垪銆�

闃熷垪鍜屾爤涓�鏍峰彧鍏佽鍦ㄦ柇鐐瑰鎻掑叆鍜屽垹闄ゅ厓绱犮��

寰幆闃熺殑鍏ラ槦绠楁硶濡備笅锛�

1銆乼ail=tail+1锛�

2銆佽嫢tail=n+1锛屽垯tail=1锛�

3銆佽嫢head=tail锛屽嵆灏�鎸囬拡涓庡ご鎸囬拡閲嶅悎浜嗭紝琛ㄧず鍏冪礌宸茶婊¢槦鍒楋紝鍒欎綔涓婃孩鍑洪敊澶勭悊锛�

4銆佸惁鍒欙紝Q(tail)=X锛岀粨鏉燂紙X涓烘柊鍏ュ嚭鍏冪礌锛夈��

闃熷垪鍜屾爤涓�鏍凤紝鏈夌潃闈炲父骞挎硾鐨勫簲鐢ㄣ��

娉ㄦ剰锛氾紙1锛夋湁鏃跺�欓槦鍒椾腑杩樹細璁剧疆琛ㄥご缁撶偣锛屽氨鏄湪闃熷ご鐨勫墠闈㈣繕鏈変竴涓粨鐐癸紝杩欎釜缁撶偣鐨勬暟鎹煙涓虹┖锛屼絾鏄�鎸囬拡鍩熸寚鍚戦槦澶村厓绱犮��

锛�2锛夊彟澶栵紝涓婇潰鐨勮绠楄繕鍙互鍒╃敤涓嬮潰缁欏嚭鐨勫叕寮廲q.rear=(cq.front+1)/max;

褰撴湁琛ㄥご缁撶偣鏃讹紝鍏紡鍙樹负cq.rear=(cq.front+1)/锛坢ax+1锛夈��

闃熷垪鐨勯摼琛ㄥ疄鐜�

鍦ㄩ槦鍒楃殑褰㈡垚杩囩▼涓紝鍙互鍒╃敤绾挎�ч摼琛ㄧ殑鍘熺悊锛屾潵鐢熸垚涓�涓槦鍒椼��

鍩轰簬閾捐〃鐨勯槦鍒楋紝瑕佸姩鎬佸垱寤哄拰鍒犻櫎鑺傜偣锛屾晥鐜囪緝浣庯紝浣嗘槸鍙互鍔ㄦ�佸闀裤��

闃熷垪閲囩敤鐨凢IFO(first in first out)锛屾柊鍏冪礌锛堢瓑寰呰繘鍏ラ槦鍒楃殑鍏冪礌锛夋�绘槸琚彃鍏ュ埌閾捐〃鐨勫熬閮紝鑰岃鍙栫殑鏃跺�欐�绘槸浠庨摼琛ㄧ殑澶撮儴寮�濮嬭鍙栥�傛瘡娆¤鍙栦竴涓厓绱狅紝閲婃斁涓�涓厓绱犮�傛墍璋撶殑鍔ㄦ�佸垱寤猴紝鍔ㄦ�侀噴鏀俱�傚洜鑰屼篃涓嶅瓨鍦ㄦ孩鍑虹瓑闂銆傜敱浜�閾捐〃鐢�缁撴瀯浣�闂存帴鑰屾垚锛岄亶鍘嗕篃鏂逛究銆�

闃熷垪鐨勫熀鏈繍绠�

锛�1锛夊垵濮嬪寲闃熷垪锛欼nit_Queue(q)聽锛屽垵濮嬫潯浠讹細闃焣聽涓嶅瓨鍦ㄣ�傛搷浣滅粨鏋滐細鏋勯�犱簡涓�涓┖闃燂紱

锛�2锛夊叆闃熸搷浣滐細聽In_Queue(q,x),鍒濆鏉′欢锛� 闃焣聽瀛樺湪銆傛搷浣滅粨鏋滐細 瀵瑰凡瀛樺湪鐨勯槦鍒梣锛屾彃鍏ヤ竴涓厓绱爔聽鍒伴槦灏撅紝闃熷彂鐢熷彉鍖栵紱

锛�3锛夊嚭闃熸搷浣滐細聽Out_Queue(q,x)锛屽垵濮嬫潯浠�:聽闃焣聽瀛樺湪涓旈潪绌猴紝鎿嶄綔缁撴灉锛� 鍒犻櫎闃熼鍏冪礌锛屽苟杩斿洖鍏跺�硷紝闃熷彂鐢熷彉鍖栵紱

锛�4锛夎闃熷ご鍏冪礌锛欶ront_Queue(q,x)锛屽垵濮嬫潯浠�:聽闃焣聽瀛樺湪涓旈潪绌猴紝鎿嶄綔缁撴灉锛� 璇婚槦澶村厓绱狅紝骞惰繑鍥炲叾鍊硷紝闃熶笉鍙橈紱

锛�5锛夊垽闃熺┖鎿嶄綔锛欵mpty_Queue(q)锛屽垵濮嬫潯浠讹細 闃焣聽瀛樺湪锛屾搷浣滅粨鏋滐細 鑻聽涓虹┖闃熷垯杩斿洖涓�1锛屽惁鍒欒繑鍥炰负0銆俒3]

鎿嶄綔绫诲瀷浣滅敤杩斿洖鍊间緥瀛�

length(s)鍑芥暟姹傚瓧绗︿覆s鐨勯暱搴︽暣鍨媠:='123456789';

l:=length(s);{l鐨勫�间负9}

copy锛坰,w,k)鍑芥暟澶嶅埗s涓粠w寮�濮嬬殑k浣嶅瓧绗︿覆s:='123456789';

s1:=copy(s,3,5);{s1鐨勫�兼槸'34567'}

val(s,k,code)杩囩▼灏嗗瓧绗︿覆s杞负鏁板�硷紝瀛樺湪k涓紱code鏄敊璇唬鐮乿ar s:string;k,code:integer;

begin

s:='1234';

val(s,k,code);

write(k);{k=1234}

str(i,s)杩囩▼灏嗘暟鍊糹杞负瀛楃涓瞫i:=1234;

str(i,s);

write(s);{s='1234'}

Delete(s,w,k)杩囩▼鍦╯涓垹闄や粠绗瑆浣嶅紑濮嬬殑k涓瓧绗 := 'Honest Abe Lincoln';

Delete(s,8,4);

Writeln(s); { 'Honest Lincoln' }

Insert(s1, S, w)杩囩▼灏唖1鎻掑埌s涓w浣峉 := 'Honest Lincoln';

Insert('Abe ', S, 8); { 'Honest Abe Lincoln' }

Pos(c, S)鍑芥暟姹傚瓧绗鍦╯涓殑浣嶇疆鏁村瀷S := ' 123.5';

i :=Pos(' ', S);{i鐨勫�间负1}

+杩愮畻绗﹀皢涓や釜瀛楃涓茶繛鎺ヨ捣鏉1:='1234';

s2:='5678';

s:=s1+s2;{'12345678'}

鍦⊿TL涓紝瀵归槦鍒楃殑浣跨敤寰堟槸杈冨畬缇�

涓嬮潰缁欏嚭寰幆闃熷垪鐨勮繍绠楃畻娉�:

(1)灏嗗惊鐜槦鍒楃疆涓虹┖

//灏嗛槦鍒楀垵濮嬪寲

SeQueue::SeQueue()

{ front=0;

rear=0;

cout<<"init!"<

}

(2)鍒ゆ柇寰幆闃熷垪鏄惁涓虹┖

int SeQueue::Empty()

{ if(rear==front) return(1);

else return(0);

}

(3)鍦ㄥ惊鐜槦鍒椾腑鎻掑叆鏂扮殑鍏冪礌x

void SeQueue::AddQ(ElemType x)

{ if((rear+1) % MAXSIZE==front) cout<<" QUEUE IS FULL! "<

else{ rear=(rear+1) % MAXSIZE;

elem[rear]=x;

cout<<" OK!";

}

}

(4)鍒犻櫎闃熷垪涓槦棣栧厓绱�

ElemType SeQueue::DelQ()

{ if(front==rear)

{ cout<<" QUEUE IS EMPTY! "<

else{ front=(front+1) % MAXSIZE;

return(elem[front]);

}

}

(5)鍙栭槦鍒椾腑鐨勯槦棣栧厓绱�

ElemType SeQueue::Front()

{ ElemType x;

if(front== rear)

cout<<"QUEUE IS EMPTY "<

else x= elem[(front+1)%MAXSIZE];

return (x);

}

閾捐〃

绾挎�ц〃鐨勯摼寮忓瓨鍌ㄨ〃绀虹殑鐗圭偣鏄敤涓�缁勪换鎰忕殑瀛樺偍鍗曞厓瀛樺偍绾挎�ц〃鐨�鏁版嵁鍏冪礌锛堣繖缁勫瓨鍌ㄥ崟鍏冨彲浠ユ槸杩炵画鐨勶紝涔熷彲浠ユ槸涓嶈繛缁殑锛夈�傚洜姝わ紝涓轰簡琛ㄧず姣忎釜鏁版嵁鍏冪礌涓庡叾鐩存帴鍚庣户鏁版嵁鍏冪礌 涔嬮棿鐨勯�昏緫鍏崇郴锛屽鏁版嵁鍏冪礌 鏉ヨ锛岄櫎浜�瀛樺偍鍏舵湰韬殑淇℃伅涔嬪锛岃繕闇�瀛樺偍涓�涓寚绀哄叾鐩存帴鍚庣户鐨勪俊鎭紙鍗崇洿鎺ュ悗缁х殑瀛樺偍浣嶇疆锛夈�傜敱杩欎袱閮ㄥ垎淇℃伅缁勬垚涓�涓�"缁撶偣"锛堝姒傝堪鏃佺殑鍥炬墍绀猴級锛岃〃绀虹嚎鎬ц〃涓竴涓�鏁版嵁鍏冪礌銆傜嚎鎬ц〃鐨勯摼寮忓瓨鍌ㄨ〃绀猴紝鏈変竴涓己鐐瑰氨鏄鎵句竴涓暟锛屽繀椤昏浠庡ご寮�濮嬫壘璧凤紝鍗佸垎楹荤儲銆�

鏍规嵁鎯呭喌锛屼篃鍙互鑷繁璁捐閾捐〃鐨勫叾瀹冩墿灞曘�備絾鏄竴鑸笉浼氬湪杈逛笂闄勫姞鏁版嵁锛屽洜涓洪摼琛ㄧ殑鐐瑰拰杈瑰熀鏈笂鏄竴涓�瀵瑰簲鐨勶紙闄や簡绗竴涓垨鑰呮渶鍚庝竴涓�鑺傜偣锛屼絾鏄篃涓嶄細浜х敓鐗规畩鎯呭喌锛夈�備笉杩囨湁涓�涓壒渚嬫槸濡傛灉閾捐〃鏀寔鍦ㄩ摼琛ㄧ殑涓�娈典腑鎶婂墠鍜屽悗鎸囬拡鍙嶅悜锛屽弽鍚戞爣璁板姞鍦ㄨ竟涓婂彲鑳戒細鏇存柟渚裤��

瀵逛簬闈炵嚎鎬х殑閾捐〃锛屽彲浠ュ弬瑙佺浉鍏崇殑鍏朵粬鏁版嵁缁撴瀯锛屼緥濡傛爲銆佸浘銆傚彟澶栨湁涓�绉嶅熀浜庡涓嚎鎬ч摼琛ㄧ殑鏁版嵁缁撴瀯锛氳烦琛紝鎻掑叆銆佸垹闄ゅ拰鏌ユ壘绛夊熀鏈搷浣滅殑閫熷害鍙互杈惧埌O(nlogn锛夛紝鍜�骞宠 浜屽弶鏍�涓�鏍枫��

鍏朵腑瀛樺偍鏁版嵁鍏冪礌淇℃伅鐨勫煙绉颁綔鏁版嵁鍩燂紙璁惧煙鍚嶄负data锛夛紝瀛樺偍鐩存帴鍚庣户瀛樺偍浣嶇疆鐨勫煙绉颁负鎸囬拡鍩燂紙璁惧煙鍚嶄负next锛夈��鎸囬拡鍩熶腑瀛樺偍鐨勪俊鎭張绉板仛鎸囬拡鎴栭摼銆�

鐢卞垎鍒〃绀�,锛屸�︼紝鐨凬聽涓粨鐐逛緷娆$浉閾炬瀯鎴愮殑閾捐〃锛岀О涓�绾挎�ц〃鐨勯摼寮忓瓨鍌ㄨ〃绀猴紝鐢变簬姝ょ被閾捐〃鐨勬瘡涓粨鐐逛腑鍙寘鍚竴涓寚閽堝煙锛屾晠鍙堢О鍗曢摼琛�鎴栫嚎鎬ч摼琛ㄣ��

鍩烘湰鎿嶄綔

锛�pascal璇█锛�

寤虹珛

绗竴琛岃鍏锛岃〃绀簄涓暟

绗簩琛屽寘鎷琻涓暟

浠ラ摼琛ㄧ殑褰㈠紡瀛樺偍杈撳嚭杩欎簺鏁�

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programproject1;

type

point=^node;

node=record

data:longint;

next:point;

end;

var

i,n,e:longint;

p,q,head,last:point;


begin

write('Inputthenumbercount:');

readln(n);

i:=1;

new(head);

read(e);

head^.data:=e;

head^.next:=nil;

last:=head;

q:=head;

whilei

begin

inc(i);

read(e);

new(p);

q^.next:=p;

p^.data:=e;

p^.next:=nil;

last:=p;

q:=last

end;

//寤虹珛閾捐〃

q:=head;

whileq^.next<>nildo

begin

write(q^.data,'');

q:=q^.next;

end;

write(q^.data);

//杈撳嚭

readln;

readln

end.

鍒犻櫎

鍦ㄤ互z涓哄ご鐨勯摼琛ㄤ腑鎼滅储绗竴涓猲锛屽鏋滄壘鍒板垯鍒犲幓锛岃繑鍥炲�间负1锛屽惁鍒欒繑鍥�0

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functiondelete(n:longint;varz:point):longint;

var

t,s:point;


begin

t:=z;

while(t^.next<>nil)and(t^.data<>n)do

begin

s:=t;

t:=t^.next;

end;

ift^.data<>nthenexit(0);

s^.next:=t^.next;

dispose(t);

exit鈶�

end;

鏌ユ壘

绫讳技浜庡垹闄わ紝鍙渶瑕佹壘鍒颁笉鍒犲嵆鍙�

鎻掑叆

鎻掑叆锛屽湪浠z涓哄ご鐨勯摼琛ㄧw涓殑鍓嶉潰鎻掑叆nn鍏冪礌锛屽嚱鏁拌繑鍥炲�兼甯告槸0锛屽鏋渨瓒呰繃浜嗛摼琛ㄧ殑闀垮害锛屽嚱鏁拌繑鍥為摼琛ㄧ殑闀垮害

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functioninsert(w,nn:longint;varzz:point):longint;

vard:longint;v,vp,vs:point;


begin

v:=zz;

ford:=1towdo

ifv^.next=nil

thenexit(d)

else

begin

vp:=v;

v:=v^.next;

end;


new(vs);

vs^.data:=nn;

vp^.next:=vs;

vs^.next:=v;

exit(0)

end;

閾捐〃鍑芥暟

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#include

#include

#include


usingnamespacestd;


structNode

{

intdata;//鏁版嵁鍩�

structNode*next;//鎸囬拡鍩�

};


/*

Create

*鍑芥暟鍔熻兘锛氬垱寤洪摼琛�.

*杈撳叆锛氬悇鑺傜偣鐨刣ata

*杩斿洖鍊硷細鎸囬拡head

*/

Node*Create()

{

intn=0;

Node*head,*p1,*p2;

p1=p2=newNode;

cin>>p1->data;

head=NULL;

while(p1->data!=0)

{

if(n==0)

{

head=p1;

}

else

p2->next=p1;

p2=p1;

p1=newNode;

cin>>p1->data;

n++;

}

p2->next=NULL;

returnhead;

}


/*

insert

*鍑芥暟鍔熻兘锛氬湪閾捐〃涓彃鍏ュ厓绱�.

*杈撳叆锛歨ead閾捐〃澶存寚閽堬紝p鏂板厓绱犳彃鍏ヤ綅缃紝x鏂板厓绱犱腑鐨勬暟鎹煙鍐呭

*杩斿洖鍊硷細鏃�

*/

voidinsert(Node*head,intp,intx)

{

Node*tmp=head;//for寰幆鏄负浜嗛槻姝㈡彃鍏ヤ綅缃秴鍑轰簡閾捐〃闀垮害

for(inti=0;i

{

if(tmp==NULL)

return;

if(i

tmp=tmp->next;

}

Node*tmp2=newNode;

tmp2->data=x;

tmp2->next=tmp->next;

tmp->next=tmp2;

}


/*

del

*鍑芥暟鍔熻兘锛氬垹闄ら摼琛ㄤ腑鐨勫厓绱�

*杈撳叆锛歨ead閾捐〃澶存寚閽堬紝p琚垹闄ゅ厓绱犱綅缃�

*杩斿洖鍊硷細琚垹闄ゅ厓绱犱腑鐨勬暟鎹煙.濡傛灉鍒犻櫎澶辫触杩斿洖-1

*/

intdel(Node*head,intp)

{

Node*tmp=head;

for(inti=0;i

{

if(tmp==NULL)

return-1;

if(i

tmp=tmp->next;

}

intret=tmp->next->data;

tmp->next=tmp->next->next;

returnret;

}


voidprint(Node*head)

{

for(Node*tmp=head;tmp!=NULL;tmp=tmp->next)

printf("%d",tmp->data);

printf("\n");

}


intmain()

{

Node*head;

head=newNode;

head->data=-1;

head->next=NULL;

return0;

}

渚嬪瓙

#include

#defineNULL0

structstudent

{

longnum;

structstudent*next;

};

intmain()

{

inti,n;

student*p=(structstudent*)malloc(sizeof(structstudent));

student*q=p;

printf("杈撳叆鍑犱釜鍊�");

scanf("%d",&n);

for(i=1;i<=n;i++)

{

scanf("%d",&(q->num));

q->next=(structstudent*)malloc(sizeof(structstudent));

q=q->next;

}

printf("鍊肩鍑犱釜");

intrank;

scanf("%d%d",&(q->num),&rank);

student*w=p;

for(i=1;i

{

w=w->next;

}

q->next=w->next;

w->next=q;

for(i=1;i<=n+1;i++)

{

printf("%d",p->num);

p=p->next;

}

return0;

}//鎸囬拡鍚庣Щ楹荤儲閾捐〃褰㈠紡寰幆閾捐〃

寰幆閾捐〃鏄笌鍗曢摼琛ㄤ竴鏍凤紝鏄竴绉嶉摼寮忕殑瀛樺偍缁撴瀯锛屾墍涓嶅悓鐨勬槸锛屽惊鐜摼琛ㄧ殑鏈�鍚庝竴涓粨鐐圭殑鎸囬拡鏄寚鍚戣寰幆閾捐〃鐨勭涓�涓粨鐐规垨鑰呰〃澶寸粨鐐癸紝浠庤�屾瀯鎴愪竴涓幆褰㈢殑閾俱��

寰幆閾捐〃鐨勮繍绠椾笌鍗曢摼琛ㄧ殑杩愮畻鍩烘湰涓�鑷淬�傛墍涓嶅悓鐨勬湁浠ヤ笅鍑犵偣锛�

1銆佸湪寤虹珛涓�涓惊鐜摼琛ㄦ椂锛屽繀椤讳娇鍏舵渶鍚庝竴涓粨鐐圭殑鎸囬拡鎸囧悜琛ㄥご缁撶偣锛岃�屼笉鏄薄鍗曢摼琛ㄩ偅鏍风疆涓篘ULL銆傛绉嶆儏鍐佃繕浣跨敤浜庡湪鏈�鍚庝竴涓粨鐐瑰悗鎻掑叆涓�涓柊鐨勭粨鐐广��

2銆佸湪鍒ゆ柇鏄惁鍒拌〃灏炬椂锛屾槸鍒ゆ柇璇ョ粨鐐归摼鍩熺殑鍊兼槸鍚︽槸琛ㄥご缁撶偣锛屽綋閾惧煙鍊肩瓑浜庤〃澶�鎸囬拡鏃讹紝璇存槑宸插埌琛ㄥ熬銆傝�岄潪璞″崟閾捐〃閭f牱鍒ゆ柇閾惧煙鍊兼槸鍚︿负NULL銆�

鍙屽悜閾捐〃

鍙屽悜閾捐〃鍏跺疄鏄崟閾捐〃鐨勬敼杩涖��

褰撴垜浠鍗曢摼琛ㄨ繘琛屾搷浣滄椂锛屾湁鏃朵綘瑕佸鏌愪釜缁撶偣鐨勭洿鎺ュ墠椹辫繘琛屾搷浣滄椂锛屽張蹇呴』浠庤〃澶村紑濮嬫煡鎵俱�傝繖鏄敱鍗曢摼琛ㄧ粨鐐圭殑缁撴瀯鎵�闄愬埗鐨勩�傚洜涓哄崟閾捐〃姣忎釜缁撶偣鍙湁涓�涓瓨鍌ㄧ洿鎺ュ悗缁х粨鐐瑰湴鍧�鐨勯摼鍩燂紝閭d箞鑳戒笉鑳藉畾涔変竴涓棦鏈夊瓨鍌ㄧ洿鎺ュ悗缁х粨鐐瑰湴鍧�鐨勯摼鍩燂紝鍙堟湁瀛樺偍鐩存帴鍓嶉┍缁撶偣鍦板潃鐨勯摼鍩熺殑杩欐牱涓�涓弻閾惧煙缁撶偣缁撴瀯鍛紵杩欏氨鏄弻鍚戦摼琛ㄣ��

鍦ㄥ弻鍚戦摼琛ㄤ腑锛岀粨鐐归櫎鍚湁鏁版嵁鍩熷锛岃繕鏈変袱涓摼鍩燂紝涓�涓瓨鍌ㄧ洿鎺ュ悗缁х粨鐐瑰湴鍧�锛屼竴鑸О涔嬩负鍙抽摼鍩燂紱涓�涓瓨鍌ㄧ洿鎺ュ墠椹辩粨鐐瑰湴鍧�锛屼竴鑸О涔嬩负宸﹂摼鍩熴��

搴旂敤涓句緥姒傝堪

绾︾憻澶幆闂锛氬凡鐭涓汉锛堜互缂栧彿1锛�2锛�3...n鍒嗗埆琛ㄧず锛夊洿鍧愬湪涓�寮犲渾妗屽懆鍥淬�備粠缂栧彿涓簁鐨勪汉寮�濮嬫姤鏁帮紝鏁板埌m鐨勯偅涓汉鍑哄垪锛涗粬鐨勪笅涓�涓汉鍙堜粠1寮�濮嬫姤鏁帮紝鏁板埌m鐨勯偅涓汉鍙堝嚭鍒楋紱渚濇瑙勫緥閲嶅涓嬪幓锛岀洿鍒板渾妗屽懆鍥寸殑浜哄叏閮ㄥ嚭鍒椼�備緥濡傦細n = 9,k = 1,m = 5

鍙傝�冧唬鐮�

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#include

#include

#defineN41

#defineM5

typedefstructnode*link;

structnode

{

intitem;

linknext;

};

linkNODE(intitem,linknext)

{

linkt=malloc(sizeof*t);

t->item=item;

t->next=next;

returnt;

}

intmain(void)

{

inti;

linkt=NODE锛�1,NULL);

t->next=t;

for(i=2;i<=N;i++)

t=t->next=NODE(i,t->next);

while(t!=t->next)

{

for(i=1;i

t=t->next;

t->next=t->next->next;

}

printf("%d\n",t->item);

return0;

}

鍏朵粬鐩稿叧缁撹涓庝釜浜烘�荤粨

C璇█鏄涔�鏁版嵁缁撴瀯鐨勫緢濂界殑瀛︿範宸ュ叿銆傜悊瑙d簡C涓敤缁撴瀯浣�鎻忚堪鏁版嵁缁撴瀯锛岄偅涔堝浜庣悊瑙e叾C++鎻忚堪锛孞ava鎻忚堪閮藉氨杞昏�屾槗涓句簡锛�


閾捐〃鐨勬彁鍑轰富瑕佸湪浜庨『搴忓瓨鍌ㄤ腑鐨勬彃鍏ュ拰鍒犻櫎鐨�鏃堕棿澶嶆潅搴�鏄嚎鎬ф椂闂寸殑锛岃�岄摼琛ㄧ殑鎿嶄綔鍒欏彲浠ユ槸甯告暟鏃堕棿鐨勫鏉傚害銆傚浜庨摼琛ㄧ殑鎻掑叆涓庡垹闄ゆ搷浣滐紝涓汉鍋氫簡涓�鐐规�荤粨锛岄�傜敤浜庡悇绉嶉摼琛ㄥ涓嬶細

鎻掑叆鎿嶄綔澶勭悊椤哄簭锛氫腑闂磋妭鐐圭殑閫昏緫锛屽悗鑺傜偣閫昏緫锛屽墠鑺傜偣閫昏緫銆傛寜鐓ц繖涓『搴忓鐞嗗彲浠ュ畬鎴愪换浣曢摼琛ㄧ殑鎻掑叆鎿嶄綔銆�

鍒犻櫎鎿嶄綔鐨勫鐞嗛『搴忥細鍓嶈妭鐐归�昏緫锛屽悗鑺傜偣閫昏緫锛屼腑闂磋妭鐐归�昏緫銆�

鎸夌収姝ら『搴忓彲浠ュ鐞嗕换浣曢摼琛ㄧ殑鍒犻櫎鎿嶄綔銆�

濡傛灉涓嶅瓨鍦ㄥ叾涓殑鏌愪釜鑺傜偣鐣ヨ繃鍗冲彲銆�

涓婇潰鐨勬�荤粨锛屽ぇ瀹跺彲浠ョ湅鍒颁竴涓幇璞★紝灏辨槸鎻掑叆鐨勯『搴忓拰鍒犻櫎鐨勯『搴忔伆濂芥槸鐩稿弽鐨勶紝寰堟湁鎰忔�濓紒

鎿嶄綔

-----鎮夊凹澶у宸ョ▼瀛﹂櫌寮犲織鍒�锛圫tone Cold锛変綔鍝�

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#include

#include

#include

typedefstructSlist

{

intdata;

structSlist*next;

}

SLIST;

SLIST*InitList_Sq()/*鍒濆鍖栧嚱鏁�*/

{

inta;

SLIST*h,*s,*r;

h=(SLIST*)malloc(sizeof(SLIST));/*寤虹珛澶存寚閽堬紝澶存寚閽堜笉鍙互鏇存敼锛侊紒锛�*/

r=h;

if(!h)

{

printf("鍒嗛厤澶辫触");

exit(0);

}

scanf("%d",&a);

for(;a!=-1;)

{

s=(SLIST*)malloc(sizeof(SLIST));/*姣忔閮藉紑杈熶竴涓粨鐐圭┖闂村苟璧嬪��*/

s->data=a;

r->next=s;

r=s;

scanf("%d",&a);

}

r->next='\0';

returnh;

}

voidprint_list(SLIST*finder)/*鎵撳嵃鍑芥暟*/

{

while(finder!='\0')

{

printf("->%d",finder->data);

finder=finder->next;

}

printf("->end\n");

}

intDeleteNode(SLIST*killer)//鍒犻櫎鑺傜偣鍑芥暟

{

inti,j=0;

SLIST*p,*q;

intx;

p=killer;

q=killer->next;

printf("璇疯緭鍏ユ偍瑕佸垹闄ょ殑鑺傜偣搴忓彿锛�");

scanf("%d",&i);

while((p->next!='\0')&&(j

{

p=p->next;

j++;

q=p->next;

}

if(p->next=='\0'||j>i-1锛�

{

printf("\nerror");

return-1;

}

else

{

p->next=q->next;

x=q->data;

free(q);

returnx;

}

}

voidInsert_Node(SLIST*jumper)//鎻掑叆鍑芥暟锛屾湰绠楁硶涓哄墠鎻掔粨鐐规硶

{

intt,e,j=0;

SLIST*p,*q;

p=jumper;

printf("璇疯緭鍏ヨ鎻掑叆浣嶇疆鐨勫簭鍙凤細");

scanf("%d",&t);

printf("璇疯緭鍏ヨ鎻掑叆鐨勫厓绱狅細");

scanf("%d",&e);

while(p->next!='\0'&&j

{

j++;

p=p->next;

}

if(p=='\0'||j>t-1锛�

printf("鎻掑叆鐨勭洰鐨勪綅缃笉瀛樺湪");

else

{

q=(SLIST*)malloc(sizeof(SLIST));

q->data=e;

q->next=p->next;

p->next=q;

}

}

voidLocate_List(SLIST*reader)//鏌ユ壘鍊间负e鐨勫厓绱�

{

inte,i=0;

SLIST*p;

p=reader;

printf("璇疯緭鍏ヨ鏌ユ壘鐨勫厓绱狅細");

scanf("%d",&e);

while(p->next!='\0'&&p->data!=e)

{

i++;

p=p->next;

}

if(p->data==e)

printf("姝ゅ厓绱犲湪%d鍙蜂綅缃甛n",i);

else

printf("鏃犳鍏冪礌锛�");

}

voidmain()

{

inti,k,y;

SLIST*head;

printf("\n1.寤虹珛绾挎�ц〃");

printf("\n2.鍦╥浣嶇疆鎻掑叆鍏冪礌e");

printf("\n3.鍒犻櫎绗琲涓厓绱狅紝杩斿洖鍏跺��");

printf("\n4.鏌ユ壘鍊间负e鐨勫厓绱�");

printf("\n5.缁撴潫绋嬪簭杩愯");

printf("\n===================================================");

printf("璇疯緭鍏ユ偍鐨勯�夋嫨锛�");

scanf("%d",&k);

switch(k)

{

case1:

{

head=InitList_Sq();

print_list(head->next);

}break;

case2:

{

head=InitList_Sq();

print_list(head->next);

Insert_Node(head);

print_list(head->next);

}

break;

case3:

{

head=InitList_Sq();

print_list(head->next);

y=DeleteNode(head);

print_list(head->next);

if(y!=-1锛�

printf("琚垹闄ゅ厓绱犱负锛�%d",y);

}break;//澶寸粨鐐逛笉绠楋紝浠庢湁鏁版嵁鐨勫紑濮嬬畻绗竴涓�

case4:

{

head=InitList_Sq();

print_list(head->next);

Locate_List(head);

}break;

}

}

鏈▼搴忓彲鍦�寰蒋VC++涓嬬紪璇戦�氳繃骞朵笖杩愯

浣跨敤鏂规硶绠�浠嬶細杩愯绋嬪簭鍚庯紝鍏堟墦鏁板瓧1锛岀劧鍚庡洖杞︼紝杩欐牱灏卞彲浠ュ厛鍒涘缓涓�涓柊鐨勯摼琛紝姣斿浣犺鍒涘缓涓�涓�

4->5->6->7杩欐牱涓�涓摼琛紝浣犲氨杈撳叆鏁板瓧4鍥炶溅锛岃緭鍏�5鍥炶溅锛岃緭鍏�6鍥炶溅锛岃緭鍏�7鍥炶溅锛屾渶鍚庤緭鍏�-1鍥炶溅锛岃繖涓�-1灏辨槸鍛婅瘔绋嬪簭鍒版涓烘鐨勬爣蹇�

鍋囧浣犺浣跨敤鎻掑叆鐨勫姛鑳戒綅缃彃鍏ワ紝灏辫緭鍏�3锛屽洖杞︼紝绋嬪簭浼氶棶浣犳彃鍏ョ殑鏁板�兼槸浠�涔堬紝姣斿浣犺鎻掑叆999锛岀劧鍚庡洖杞︼紝999灏辫鎻掕繘鍘讳簡

鍏朵粬鐨勫姛鑳介兘澶у悓灏忓紓

Data_structures

鈻�闆嗗悎鈻�瀹瑰櫒聽聽



鈻�鏁扮粍鈻�鍏宠仈鏁扮粍鈻�Multimap鈻�闆�

鈻�澶氶噸闆�鈻�鏁e垪琛�鈻�鏍戠姸鏁扮粍聽



鈻�鍒楄〃鈻摼琛ㄢ柂闃熷垪鈻�鍫嗘爤

鈻�寰幆闃熷垪鈻�璺宠穬鍒楄〃聽聽



鈻�鏍�鈻�浜屽弶鏌ユ壘鏍�鈻�鍫�鈻�绾挎鏍�

鈻�绾㈤粦鏍�鈻�AVL鏍�聽聽



鈻�鍥�鈻�鏈夊悜鏃犵幆鍥�鈻�浜屽厓鍐崇瓥鍥�鈻�鏃犲悜鍥�


璇嶆潯鏍囩锛�

绉戝鐧剧淇℃伅绉戝鍒嗙被聽锛屄�涓浗鐢靛瓙瀛︿細聽锛屄�

浜屽弶鏍�


鍦ㄨ绠楁満绉戝涓紝浜屽弶鏍戞槸姣忎釜缁撶偣鏈�澶氭湁涓や釜瀛愭爲鐨勬爲缁撴瀯銆傞�氬父瀛愭爲琚О浣溾�滃乏瀛愭爲鈥濓紙left subtree锛夊拰鈥滃彸瀛愭爲鈥濓紙right subtree锛夈�備簩鍙夋爲甯歌鐢ㄤ簬瀹炵幇浜屽弶鏌ユ壘鏍戝拰浜屽弶鍫嗐��

浜屽弶鏍戠殑姣忎釜缁撶偣鑷冲鍙湁浜屾5瀛愭爲(涓嶅瓨鍦ㄥ害澶т簬2鐨勭粨鐐�)锛屼簩鍙夋爲鐨勫瓙鏍戞湁宸﹀彸涔嬪垎锛屾搴忎笉鑳介鍊掋�備簩鍙夋爲鐨勭i灞傝嚦澶氭湁2^{i-1}涓粨鐐癸紱娣卞害涓簁鐨勪簩鍙夋爲鑷冲鏈�2^k-1涓粨鐐癸紱瀵逛换浣曚竴妫典簩鍙夋爲T锛屽鏋滃叾缁堢缁撶偣鏁颁负n_0锛屽害涓�2鐨勭粨鐐规暟涓簄_2锛屽垯n_0=n_2+1銆�

涓�妫垫繁搴︿负k锛屼笖鏈�2^k-1涓妭鐐圭殑浜屽弶鏍戯紝绉颁负婊′簩鍙夋爲銆傝繖绉嶆爲鐨勭壒鐐规槸姣忎竴灞備笂鐨勮妭鐐规暟閮芥槸鏈�澶ц妭鐐规暟銆傝�屽湪涓�妫典簩鍙夋爲涓紝闄ゆ渶鍚庝竴灞傚锛岃嫢鍏朵綑灞傞兘鏄弧鐨勶紝骞朵笖鏈�鍚庝竴灞傛垨鑰呮槸婊$殑锛屾垨鑰呮槸鍦ㄥ彸杈圭己灏戣繛缁嫢骞茶妭鐐癸紝鍒欐浜屽弶鏍戜负瀹屽叏浜屽弶鏍戙�傚叿鏈塶涓妭鐐圭殑瀹屽叏浜屽弶鏍戠殑娣卞害涓簂og2n+1銆傛繁搴︿负k鐨勫畬鍏ㄤ簩鍙夋爲锛岃嚦灏戞湁2^(k-1)涓妭鐐癸紝鑷冲鏈�2^k-1涓妭鐐广��

涓枃鍚�

浜屽弶鏍�

澶栨枃鍚�

Binary Tree

姒傝堪

璁$畻鏈轰腑鏁版嵁缁撴瀯鐨勪竴绉�

绠�浠�

姣忎釜缁撶偣鏈�澶氭湁涓や釜瀛愭爲鐨勬爲缁撴瀯

鐩綍

00001.聽1聽瀹氫箟

00002.聽2聽鍩烘湰姒傚康

00003.聽鈻�绫诲瀷

00004.聽鈻�鐩稿叧鏈

00005.聽鈻�浜屽弶鏍戞�ц川

00001.聽鈻�瀛樺偍缁撴瀯

00002.聽鈻�杈ㄦ瀽

00003.聽3聽閬嶅巻椤哄簭

00004.聽鈻�鍏堝簭閬嶅巻

00005.聽鈻�涓簭閬嶅巻

00001.聽鈻�鍚庡簭閬嶅巻

00002.聽鈻�灞傛閬嶅巻

00003.聽鈻�绾跨储浜屽弶鏍�

00004.聽4聽瀹炵幇婕旂ず

瀹氫箟

缂栬緫

浜屽弶鏍戝湪鍥捐涓槸杩欐牱瀹氫箟鐨勶細浜屽弶鏍戞槸涓�涓繛閫氱殑鏃犵幆鍥撅紝骞朵笖姣忎竴涓《鐐圭殑搴︿笉澶т簬3銆傛湁鏍逛簩鍙夋爲杩樿婊¤冻鏍圭粨鐐圭殑搴︿笉澶т簬2銆傛湁浜嗘牴缁撶偣涔嬪悗锛屾瘡涓《鐐瑰畾涔変簡鍞竴鐨勭埗缁撶偣锛屽拰鏈�澶�2涓瓙缁撶偣銆傜劧鑰岋紝娌℃湁瓒冲鐨勪俊鎭潵鍖哄垎宸︾粨鐐瑰拰鍙崇粨鐐广�傚鏋滀笉鑰冭檻杩為�氭�э紝鍏佽鍥句腑鏈夊涓繛閫氬垎閲忥紝杩欐牱鐨勭粨鏋勫彨鍋氭.鏋椼��

鍩烘湰姒傚康

缂栬緫

浜屽弶鏍戞槸閫掑綊瀹氫箟鐨勶紝鍏剁粨鐐规湁宸﹀彸瀛愭爲涔嬪垎锛岄�昏緫涓婁簩鍙夋爲鏈変簲绉嶅熀鏈舰鎬侊細

(1)绌轰簩鍙夋爲鈥斺�斿鍥�(a)锛�


(2)鍙湁涓�涓牴缁撶偣鐨勪簩鍙夋爲鈥斺�斿鍥�(b)锛�

(3)鍙湁宸﹀瓙鏍戔�斺�斿鍥�(c)锛�

(4)鍙湁鍙冲瓙鏍戔�斺�斿鍥�(d)锛�

(5)瀹屽叏浜屽弶鏍�鈥斺�斿鍥�(e)銆�

娉ㄦ剰锛氬敖绠′簩鍙夋爲涓庢爲鏈夎澶氱浉浼间箣澶勶紝浣嗕簩鍙夋爲涓嶆槸鏍戠殑鐗规畩鎯呭舰銆俒1]

绫诲瀷

(1)瀹屽叏浜屽弶鏍�鈥斺�旇嫢璁句簩鍙夋爲鐨勯珮搴︿负h锛岄櫎绗爃聽灞傚锛屽叾瀹冨悇灞偮�(1锝瀐-1)聽鐨勭粨鐐规暟閮借揪鍒版渶澶т釜鏁帮紝绗琱灞傛湁鍙跺瓙缁撶偣锛屽苟涓斿彾瀛愮粨鐐归兘鏄粠宸﹀埌鍙充緷娆℃帓甯冿紝杩欏氨鏄�瀹屽叏浜屽弶鏍�銆�

(2)婊′簩鍙夋爲鈥斺�旈櫎浜嗗彾缁撶偣澶栨瘡涓�涓粨鐐归兘鏈夊乏鍙冲瓙鍙朵笖鍙跺瓙缁撶偣閮藉鍦ㄦ渶搴曞眰鐨勪簩鍙夋爲銆�

(3)骞宠 浜屽弶鏍�鈥斺��骞宠 浜屽弶鏍�鍙堣绉颁负AVL鏍戯紙鍖哄埆浜�AVL绠楁硶锛夛紝瀹冩槸涓�妫典簩鍙夋帓搴忔爲锛屼笖鍏锋湁浠ヤ笅鎬ц川锛氬畠鏄竴妫电┖鏍戞垨瀹冪殑宸﹀彸涓や釜瀛愭爲鐨勯珮搴﹀樊鐨勭粷瀵瑰�间笉瓒呰繃1锛屽苟涓斿乏鍙充袱涓瓙鏍戦兘鏄竴妫�骞宠 浜屽弶鏍�銆俒2]

鐩稿叧鏈

鏍戠殑缁撶偣锛氬寘鍚竴涓暟鎹厓绱犲強鑻ュ共鎸囧悜瀛愭爲鐨勫垎鏀紱

瀛╁瓙缁撶偣锛氱粨鐐圭殑瀛愭爲鐨勬牴绉颁负璇ョ粨鐐圭殑瀛╁瓙锛�

鍙屼翰缁撶偣锛欱聽缁撶偣鏄疉聽缁撶偣鐨勫瀛愶紝鍒橝缁撶偣鏄疊聽缁撶偣鐨勫弻浜诧紱

鍏勫紵缁撶偣锛氬悓涓�鍙屼翰鐨勫瀛愮粨鐐癸紱聽鍫傚厔缁撶偣锛氬悓涓�灞備笂缁撶偣锛�

绁栧厛缁撶偣:聽浠庢牴鍒拌缁撶偣鐨勬墍缁忓垎鏀笂鐨勬墍鏈夌粨鐐瑰瓙瀛欑粨鐐癸細浠ユ煇缁撶偣涓烘牴鐨勫瓙鏍戜腑浠讳竴缁撶偣閮界О涓鸿缁撶偣鐨勫瓙瀛�

缁撶偣灞傦細鏍圭粨鐐圭殑灞傚畾涔変负1锛涙牴鐨勫瀛愪负绗簩灞傜粨鐐癸紝渚濇绫绘帹锛�

鏍戠殑娣卞害锛氭爲涓渶澶х殑缁撶偣灞�

缁撶偣鐨勫害锛氱粨鐐瑰瓙鏍戠殑涓暟

鏍戠殑搴︼細聽鏍戜腑鏈�澶х殑缁撶偣搴︺��

鍙跺瓙缁撶偣锛氫篃鍙粓绔粨鐐癸紝鏄害涓郝�0聽鐨勭粨鐐癸紱

鍒嗘灊缁撶偣锛氬害涓嶄负0鐨勭粨鐐癸紱

鏈夊簭鏍戯細瀛愭爲鏈夊簭鐨勬爲锛屽锛氬鏃忔爲锛�

鏃犲簭鏍戯細涓嶈�冭檻瀛愭爲鐨勯『搴忥紱[3]

浜屽弶鏍戞�ц川

(1)聽鍦�闈炵┖浜屽弶鏍�涓紝绗琲灞傜殑缁撶偣鎬绘暟涓嶈秴杩�


, i>=1锛�

(2)聽娣卞害涓篽鐨勪簩鍙夋爲鏈�澶氭湁


涓粨鐐�(h>=1)锛屾渶灏戞湁h涓粨鐐癸紱

(3)聽瀵逛簬浠绘剰涓�妫典簩鍙夋爲锛屽鏋滃叾鍙剁粨鐐规暟涓篘0锛岃�屽害鏁颁负2鐨勭粨鐐规�绘暟涓篘2锛屽垯N0=N2+1锛�

(4)聽鍏锋湁n涓粨鐐圭殑瀹屽叏浜屽弶鏍�鐨勬繁搴︿负


锛堟敞锛歔 ]琛ㄧず鍚戜笅鍙栨暣锛�

(5)鏈塏涓粨鐐圭殑瀹屽叏浜屽弶鏍�鍚勭粨鐐瑰鏋滅敤椤哄簭鏂瑰紡瀛樺偍锛屽垯缁撶偣涔嬮棿鏈夊涓嬪叧绯伙細

鑻涓虹粨鐐圭紪鍙峰垯 濡傛灉I>1锛屽垯鍏剁埗缁撶偣鐨勭紪鍙蜂负I/2锛�

濡傛灉2*I<=N锛屽垯鍏跺乏鍎垮瓙锛堝嵆宸﹀瓙鏍戠殑鏍圭粨鐐癸級鐨勭紪鍙蜂负2*I锛涜嫢2*I>N锛屽垯鏃犲乏鍎垮瓙锛�

濡傛灉2*I+1<=N锛屽垯鍏跺彸鍎垮瓙鐨勭粨鐐圭紪鍙蜂负2*I+1锛涜嫢2*I+1>N锛屽垯鏃犲彸鍎垮瓙銆�

(6)缁欏畾N涓妭鐐癸紝鑳芥瀯鎴恏(N)绉嶄笉鍚岀殑浜屽弶鏍戙��

h(N)涓�鍗$壒鍏版暟鐨勭N椤广�俬(n)=C(2*n锛宯)/(n+1)銆�

(7)璁炬湁i涓灊鐐癸紝I涓烘墍鏈夋灊鐐圭殑閬撹矾闀垮害鎬诲拰锛孞涓哄彾鐨勯亾璺暱搴︽�诲拰J=I+2i[4]

瀛樺偍缁撴瀯

(1锛夐『搴忓瓨鍌ㄦ柟寮�

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typenode=record

data:datatype

l,r:integer;

end;

vartr:array[1..n]ofnode;

(2)閾捐〃瀛樺偍鏂瑰紡锛屽锛�

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typebtree=^node锛�

node=record

data:datatye;

lchild,rchild:btree;

end;


1聽

杈ㄦ瀽

浜屽弶鏍戜笉鏄爲鐨勪竴绉嶇壒娈婃儏褰紝灏界鍏朵笌鏍戞湁璁稿鐩镐技涔嬪锛屼絾鏍戝拰浜�


浜屽弶鏍�(3寮�)

鍙夋爲鏈変袱涓富瑕佸樊鍒細

1.聽鏍戜腑缁撶偣鐨勬渶澶у害鏁版病鏈夐檺鍒讹紝鑰屼簩鍙夋爲缁撶偣鐨勬渶澶у害鏁颁负2锛�

2.聽鏍戠殑缁撶偣鏃犲乏銆佸彸涔嬪垎锛岃�屼簩鍙夋爲鐨勭粨鐐规湁宸︺�佸彸涔嬪垎銆�

閬嶅巻椤哄簭

缂栬緫

閬嶅巻鏄鏍戠殑涓�绉嶆渶鍩烘湰鐨勮繍绠楋紝鎵�璋撻亶鍘嗕簩鍙夋爲锛屽氨鏄寜涓�瀹氱殑瑙勫垯鍜岄『搴忚蛋閬嶄簩鍙夋爲鐨勬墍鏈夌粨鐐癸紝浣挎瘡涓�涓粨鐐归兘琚闂竴娆★紝鑰屼笖鍙璁块棶涓�娆°�傜敱浜庝簩鍙夋爲鏄潪绾挎�х粨鏋勶紝鍥犳锛�鏍戠殑閬嶅巻瀹炶川涓婃槸灏嗕簩鍙夋爲鐨勫悇涓粨鐐硅浆鎹㈡垚涓轰竴涓嚎鎬у簭鍒楁潵琛ㄧず銆�

璁綥銆丏銆丷鍒嗗埆琛ㄧず閬嶅巻宸﹀瓙鏍戙�佽闂牴缁撶偣鍜岄亶鍘嗗彸瀛愭爲锛� 鍒欏涓�妫典簩鍙夋爲鐨勯亶鍘嗘湁涓夌鎯呭喌锛欴LR锛堢О涓哄厛鏍规搴忛亶鍘嗭級锛孡DR锛堢О涓轰腑鏍规搴忛亶鍘嗭級锛孡RD聽锛堢О涓哄悗鏍规搴忛亶鍘嗭級銆�

鍏堝簭閬嶅巻

棣栧厛璁块棶鏍癸紝鍐嶅厛搴忛亶鍘嗗乏锛堝彸锛夊瓙鏍戯紝鏈�鍚庡厛搴忛亶鍘嗗彸锛堝乏锛夊瓙鏍戯紝C璇█浠g爜濡備笅锛�

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voidXXBL(tree*root){

//DoSomethingwithroot

if(root->lchild!=NULL)

XXBL(root->lchild);

if(root->rchild!=NULL)

XXBL(root->rchild);

}

涓簭閬嶅巻

棣栧厛涓簭閬嶅巻宸︼紙鍙筹級瀛愭爲锛屽啀璁块棶鏍癸紝鏈�鍚庝腑搴忛亶鍘嗗彸锛堝乏锛夊瓙鏍戯紝C璇█浠g爜濡備笅

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voidZXBL(tree*root)

{

if(root->lchild!=NULL)

ZXBL(root->lchild);//DoSomethingwithroot

if(root->rchild!=NULL)

ZXBL(root->rchild);

}

鍚庡簭閬嶅巻

棣栧厛鍚庡簭閬嶅巻宸︼紙鍙筹級瀛愭爲锛屽啀鍚庡簭閬嶅巻鍙筹紙宸︼級瀛愭爲锛屾渶鍚庤闂牴锛孋璇█浠g爜濡備笅

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voidHXBL(tree*root){

if(root->lchild!=NULL)

HXBL(root->lchild);

if(root->rchild!=NULL)

HXBL(root->rchild);//DoSomethingwithroot

}

灞傛閬嶅巻

鍗虫寜鐓у眰娆¤闂紝閫氬父鐢�闃熷垪鏉ュ仛銆傝闂牴锛岃闂瓙濂筹紝鍐嶈闂瓙濂崇殑瀛愬コ锛堣秺寰�鍚庣殑灞傛瓒婁綆锛夛紙涓や釜瀛愬コ鐨勭骇鍒浉鍚岋級

绾跨储浜屽弶鏍�

绾跨储浜屽弶鏍�(淇濈暀閬嶅巻鏃剁粨鐐瑰湪浠讳竴搴忓垪鐨勫墠椹卞拰鍚庣户鐨勪俊鎭�)锛氳嫢缁撶偣鏈夊乏瀛愭爲锛屽垯鍏秎child鍩熸寚绀哄叾宸﹀瀛愶紝鍚﹀垯浠child鍩熸寚绀哄叾鍓嶉┍锛涜嫢缁撶偣鏈夊彸瀛愭爲锛屽垯鍏秗child鍩熸寚绀哄叾鍙冲瀛愶紝鍚﹀垯浠child鎸囩ず鍏跺悗缁с�傝繕闇�鍦ㄧ粨鐐圭粨鏋勪腑澧炲姞涓や釜鏍囧織鍩烲Tag鍜孯Tag銆侺Tag=0鏃讹紝lchild鍩熸寚绀虹粨鐐圭殑宸﹀瀛愶紝LTag=1鏃讹紝lchild鍩熸寚绀虹粨鐐圭殑鍓嶉┍锛汻Tag=0鏃讹紝rchild鍩熸寚绀虹粨鐐圭殑鍙冲瀛愶紝RTag=1鏃讹紝rchild鍩熸寚绀虹粨鐐圭殑鍚庣户銆備互杩欑缁撶偣缁撴瀯鏋勬垚鐨勪簩鍙夌嚎绱�閾捐〃锛岄摼琛ㄤ綔涓轰簩鍙夋爲鐨�瀛樺偍缁撴瀯锛屽彨鍋氬叾涓寚鍚戠粨鐐瑰墠椹卞拰鍚庣户鐨�鎸囬拡鍙仛绾跨储锛屽姞涓婄嚎绱㈢殑浜屽弶鏍戠О涓虹嚎绱簩鍙夋爲銆傚浜屽弶鏍戜互鏌愮娆″簭閬嶅巻浣垮叾鍙樹负绾跨储浜屽弶鏍戠殑杩囩▼鍙仛绾跨储鍖栥�傝嫢瀵逛簩鍙夋爲杩涜涓簭閬嶅巻锛屽垯鎵�寰楃殑绾跨储浜屽弶鏍戠О涓轰腑搴忕嚎绱簩鍙夋爲锛岀嚎绱�閾捐〃绉颁负涓轰腑搴忕嚎绱㈤摼琛ㄣ�傜嚎绱簩鍙夋爲鏄竴绉�鐗╃悊缁撴瀯銆�

绾跨储浜屽弶鏍戠殑瀛樺偍缁撴瀯

鍦ㄤ腑搴忕嚎绱㈡爲鎵剧粨鐐瑰悗缁х殑瑙勫緥鏄細鑻ュ叾鍙虫爣蹇椾负1锛屽垯鍙抽摼涓虹嚎绱紝鎸囩ず鍏跺悗缁э紝鍚﹀垯閬嶅巻鍏跺彸瀛愭爲鏃惰闂殑绗竴涓粨鐐癸紙鍙冲瓙鏍戞渶宸︿笅鐨勭粨鐐癸級涓哄叾鍚庣户锛涙壘缁撶偣鍓嶉┍鐨勮寰嬫槸锛氳嫢鍏跺乏鏍囧織涓�1锛屽垯宸﹂摼涓虹嚎绱紝鎸囩ず鍏跺墠椹憋紝鍚﹀垯閬嶅巻宸﹀瓙鏍戞椂鏈�鍚庤闂殑涓�涓粨鐐癸紙宸﹀瓙鏍戜腑鏈�鍙充笅鐨勭粨鐐癸級涓哄叾鍓嶉┍銆�

鍦ㄥ悗搴忕嚎绱㈡爲涓壘鍒扮粨鐐圭殑鍚庣户鍒嗕笁绉嶆儏鍐碉細

鑻ョ粨鐐规槸浜屽弶鏍戠殑鏍癸紝鍒欏叾鍚庣户涓虹┖锛涜嫢缁撶偣鏄叾鍙屼翰鐨勫彸瀛╁瓙锛屾垨鏄叾鍙屼翰鐨勫乏瀛╁瓙涓斿叾鍙屼翰娌℃湁鍙冲瓙鏍戯紝鍒欏叾鍚庣户鍗充负鍙屼翰缁撶偣锛涜嫢缁撶偣鏄叾鍙屼翰鐨勫乏瀛╁瓙锛屼笖鍏跺弻浜叉湁鍙冲瓙鏍戯紝鍒欏叾鍚庣户涓哄弻浜插彸瀛愭爲涓婃寜鍚庡簭閬嶅巻鍒楀嚭鐨勭涓�涓粨鐐广��

鏁版嵁缁撴瀯瀹氫箟涓猴細

/*浜屽弶绾跨储瀛樺偍琛ㄧず*/typedefenum{Link,Thread}PointerTag;/* Link(0)锛氭寚閽堬紝Thread(1)锛氱嚎绱�*/typedefstruct BiThrNode{ TElemType data;struct BiThrNode *lchild,*rchild;/*宸﹀彸瀛╁瓙鎸囬拡*/PointerTag LTag,RTag;/*聽宸﹀彸鏍囧織聽*/}BiThrNode,*BiThrTree;

瀹炵幇婕旂ず

缂栬緫

鑼冧緥浜屽弶鏍戯細

A

B C

D E

姝ゆ爲鐨勯『搴忕粨鏋勪负锛欰BCD##E

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intmain()

{

node*p=newnode;

node*p=head;

head=p;

stringstr;

cin聽>>str;

creat(p,str,0)//榛樿鏍硅妭鐐瑰湪str涓嬫爣0鐨勪綅缃�

return0;

}

//p涓烘爲鐨勬牴鑺傜偣锛堝凡寮�杈熷姩鎬佸唴瀛橈級,str涓轰簩鍙夋爲鐨勯『搴忓瓨鍌ㄦ暟缁凙BCD##E鎴栧叾浠栭『搴忓瓨鍌ㄦ暟缁勶紝r褰撳墠缁撶偣鎵�鍦ㄩ『搴忓瓨鍌ㄦ暟缁勪綅缃�

intmain()

{

node*聽p聽=聽newnode;

node*聽p聽=聽head;

head聽=聽p;

string聽str;

cin聽>>聽str;

creat(p,聽str,聽0)//榛樿鏍硅妭鐐瑰湪str涓嬫爣0鐨勪綅缃�

return0;

}

//p涓烘爲鐨勬牴鑺傜偣锛堝凡寮�杈熷姩鎬佸唴瀛橈級,str涓轰簩鍙夋爲鐨勯『搴忓瓨鍌ㄦ暟缁凙BCD##E鎴栧叾浠栭『搴忓瓨鍌ㄦ暟缁勶紝r褰撳墠缁撶偣鎵�鍦ㄩ『搴忓瓨鍌ㄦ暟缁勪綅缃�

voidcreat(node*聽p,聽string聽str,聽intr)

{

p->data聽=聽str[r];

if(str[r聽*聽2聽+聽1]聽==聽'#'||聽r聽*聽2聽+聽1聽>聽str.size()聽-聽1)p->lch聽=聽NULL;

else

{

p->lch聽=聽newnode;

creat(p->lch,聽str,聽r聽*聽2聽+聽1);

}

if(str[r聽*聽2聽+聽2]聽==聽'#'||聽r聽*聽2聽+聽2聽>聽str.size()聽-聽1)p->rch聽=聽NULL;

else

{

p->rch聽=聽newnode;

creat(p->rch,聽str,聽r聽*聽2聽+聽2);

}

}

璇嶆潯鍥惧唽鏇村鍥惧唽


璇嶆潯鍥剧墖(3)


浜屽弶鏍�(3)


璁$畻鏈虹瀛︿腑鐨勬爲

浜屽弶鏍戔柂浜屽弶鏍戔柂浜屽弶鏌ユ壘鏍�鈻�绗涘崱灏旀爲鈻�Top tree

鈻�T鏍�聽聽聽





鑷钩琛′簩鍙夋煡鎵炬爲鈻�AA鏍�鈻�AVL鏍�鈻�绾㈤粦鏍�鈻�浼稿睍鏍�

鈻�鏍戝爢鈻�鑺傜偣澶у皬骞宠 鏍�聽聽





B鏍戔柂B鏍�鈻�B+鏍�鈻�B*鏍�鈻�Bx鏍�

鈻�UB鏍�鈻�2-3鏍�鈻�2-3-4鏍�鈻�(a,b)-鏍�

鈻�Dancing tree鈻�H鏍�聽聽





Trie鈻�鍓嶇紑鏍�鈻�鍚庣紑鏍�鈻�鍩烘暟鏍�聽





绌洪棿鍒掑垎鏍戔柂鍥涘弶鏍�鈻�鍏弶鏍�鈻�k-d鏍�鈻�vp-鏍�

鈻�R鏍�鈻�R*鏍�鈻�R+鏍�鈻�X鏍�

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鈻�Range tree鈻�SPQR tree鈻�Van Emde Boas tree聽





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鈻�Cover tree鈻�BK-tree鈻�Doubly-chained tree鈻�iDistance

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绾㈤粦鏍戝拰AVL鏍戠被浼硷紝閮芥槸鍦ㄨ繘琛屾彃鍏ュ拰鍒犻櫎鎿嶄綔鏃堕�氳繃鐗瑰畾鎿嶄綔淇濇寔浜屽弶鏌ユ壘鏍戠殑骞宠 锛屼粠鑰岃幏寰楄緝楂樼殑鏌ユ壘鎬ц兘銆�

瀹冭櫧鐒舵槸澶嶆潅鐨勶紝浣嗗畠鐨勬渶鍧忔儏鍐佃繍琛屾椂闂翠篃鏄潪甯歌壇濂界殑锛屽苟涓斿湪瀹炶返涓槸楂樻晥鐨勶細聽瀹冨彲浠ュ湪O(log n)鏃堕棿鍐呭仛鏌ユ壘锛屾彃鍏ュ拰鍒犻櫎锛岃繖閲岀殑n聽鏄爲涓厓绱犵殑鏁扮洰銆�

涓枃鍚�

绾㈤粦鏍�

澶栨枃鍚�

RED BLACK TREE

鎬ц川

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鐢ㄩ��

瀹炵幇鍏宠仈鏁扮粍

鍙戞槑浜�

椴侀亾澶疯礉灏�

鍙戞槑鏃堕棿

1972骞�

鍒悕

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鐩綍

00001.聽1聽鏁版嵁缁撴瀯

00002.聽2聽鏍戠殑鏃嬭浆

00001.聽3聽鎬ц川

00002.聽4聽鏈

00001.聽5聽鐢ㄩ��

00002.聽6聽鎿嶄綔

鏁版嵁缁撴瀯

瀹冪殑缁熻鎬ц兘瑕佸ソ浜�骞宠 浜屽弶鏍�(鏈変簺涔︾睄鏍�

绾㈤粦鏍�

鎹綔鑰呭鍚嶏紝Adelson-Velskii鍜孡andis锛屽皢鍏剁О涓篈VL-鏍�)锛屽洜姝わ紝绾㈤粦鏍戝湪寰堝鍦版柟閮芥湁搴旂敤銆傚湪C++ STL涓紝寰堝閮ㄥ垎(鍖呮嫭set, multiset, map, multimap)搴旂敤浜嗙孩榛戞爲鐨勫彉浣�(SGI STL涓殑绾㈤粦鏍戞湁涓�浜涘彉鍖栵紝杩欎簺淇敼鎻愪緵浜嗘洿濂界殑鎬ц兘锛屼互鍙婂set鎿嶄綔鐨勬敮鎸�)銆傚叾浠�骞宠 鏍�杩樻湁锛�AVL锛�SBT锛�浼稿睍鏍�锛�TREAP绛夌瓑銆�

鏍戠殑鏃嬭浆

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鏍戠殑宸︽棆(2寮�)

璐ㄣ��

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濡傚彸鍥俱��

鎬ц川

绾㈤粦鏍戞槸姣忎釜鑺傜偣閮藉甫鏈夐鑹插睘鎬х殑浜屽弶鏌ユ壘鏍戯紝棰滆壊鎴栫孩鑹叉垨榛戣壊銆傚湪浜屽弶鏌ユ壘鏍戝己鍒朵竴鑸姹備互澶栵紝瀵逛簬浠讳綍鏈夋晥鐨勭孩榛戞爲鎴戜滑澧炲姞浜嗗涓嬬殑棰濆瑕佹眰:

鎬ц川1.聽鑺傜偣鏄孩鑹叉垨榛戣壊銆�

鎬ц川2.聽鏍硅妭鐐规槸榛戣壊銆�

鎬ц川3聽姣忎釜鍙惰妭鐐癸紙NIL鑺傜偣锛岀┖鑺傜偣锛夋槸榛戣壊鐨勩��

鎬ц川4聽姣忎釜绾㈣壊鑺傜偣鐨勪袱涓瓙鑺傜偣閮芥槸榛戣壊銆�(浠庢瘡涓彾瀛愬埌鏍圭殑鎵�鏈夎矾寰勪笂涓嶈兘鏈変袱涓繛缁殑绾㈣壊鑺傜偣)

鎬ц川5.聽浠庝换涓�鑺傜偣鍒板叾姣忎釜鍙跺瓙鐨勬墍鏈夎矾寰勯兘鍖呭惈鐩稿悓鏁扮洰鐨勯粦鑹茶妭鐐广��

杩欎簺绾︽潫寮哄埗浜嗙孩榛戞爲鐨勫叧閿�ц川:聽浠庢牴鍒板彾瀛愮殑鏈�闀跨殑鍙兘璺緞涓嶅浜庢渶鐭殑鍙兘璺緞鐨勪袱鍊嶉暱銆傜粨鏋滄槸杩欎釜鏍戝ぇ鑷翠笂鏄钩琛$殑銆傚洜涓烘搷浣滄瘮濡傛彃鍏ャ�佸垹闄ゅ拰鏌ユ壘鏌愪釜鍊肩殑鏈�鍧忔儏鍐垫椂闂撮兘瑕佹眰涓庢爲鐨勯珮搴︽垚姣斾緥锛岃繖涓湪楂樺害涓婄殑鐞嗚涓婇檺鍏佽绾㈤粦鏍戝湪鏈�鍧忔儏鍐典笅閮芥槸楂樻晥鐨勶紝鑰屼笉鍚屼簬鏅�氱殑浜屽弶鏌ユ壘鏍戙��

瑕佺煡閬撲负浠�涔堣繖浜涚壒鎬х‘淇濅簡杩欎釜缁撴灉锛屾敞鎰忓埌鎬ц川4瀵艰嚧浜嗚矾寰勪笉鑳芥湁涓や釜姣楄繛鐨勭孩鑹茶妭鐐瑰氨瓒冲浜嗐�傛渶鐭殑鍙兘璺緞閮芥槸榛戣壊鑺傜偣锛屾渶闀跨殑鍙兘璺緞鏈変氦鏇跨殑绾㈣壊鍜岄粦鑹茶妭鐐广�傚洜涓烘牴鎹�ц川5鎵�鏈夋渶闀跨殑璺緞閮芥湁鐩稿悓鏁扮洰鐨勯粦鑹茶妭鐐癸紝杩欏氨琛ㄦ槑浜嗘病鏈夎矾寰勮兘澶氫簬浠讳綍鍏朵粬璺緞鐨勪袱鍊嶉暱銆�

鍦ㄥ緢澶氭爲鏁版嵁缁撴瀯鐨勮〃绀轰腑锛屼竴涓妭鐐规湁鍙兘鍙湁涓�涓瓙鑺傜偣锛岃��鍙跺瓙鑺傜偣涓嶅寘鍚暟鎹�傜敤杩欑鑼冧緥琛ㄧず绾㈤粦鏍戞槸鍙兘鐨勶紝浣嗘槸杩欎細鏀瑰彉涓�浜涘睘鎬у苟浣跨畻娉曞鏉傘�備负姝わ紝鏈枃涓垜浠娇鐢�"nil聽鍙跺瓙"聽鎴�"绌�(null)鍙跺瓙"锛屽涓婂浘鎵�绀猴紝瀹冧笉鍖呭惈鏁版嵁鑰屽彧鍏呭綋鏍戝湪姝ょ粨鏉熺殑鎸囩ず銆傝繖浜涜妭鐐瑰湪缁樺浘涓粡甯歌鐪佺暐锛屽鑷翠簡杩欎簺鏍戝ソ璞″悓涓婅堪鍘熷垯鐩哥煕鐩撅紝鑰屽疄闄呬笂涓嶆槸杩欐牱銆備笌姝ゆ湁鍏崇殑缁撹鏄墍鏈夎妭鐐归兘鏈変袱涓瓙鑺傜偣锛屽敖绠″叾涓殑涓�涓垨涓や釜鍙兘鏄┖鍙跺瓙銆�

鏈

绾㈤粦鏍戞槸涓�绉嶇壒瀹氱被鍨嬬殑浜屽弶鏍�锛屽畠鏄湪璁$畻鏈虹瀛︿腑鐢ㄦ潵缁勭粐鏁版嵁姣斿鏁板瓧鐨勫潡鐨勪竴绉嶇粨鏋勩�傛墍鏈�鏁版嵁鍧�閮藉瓨鍌ㄥ湪鑺傜偣涓�傝繖浜涜妭鐐逛腑鐨勬煇涓�涓妭鐐规�绘槸鎷呭綋璧峰浣嶇疆鐨勫姛鑳斤紝瀹冧笉鏄换浣曡妭鐐圭殑鍎垮瓙锛屾垜浠О涔嬩负鏍硅妭鐐规垨鏍广�傚畠鏈夋渶澶氫袱涓�"鍎垮瓙"锛岄兘鏄畠杩炴帴鍒扮殑鍏朵粬鑺傜偣銆傛墍鏈夎繖浜涘効瀛愰兘鍙互鏈夎嚜宸辩殑鍎垮瓙锛屼互姝ょ被鎺ㄣ�傝繖鏍锋牴鑺傜偣灏辨湁浜嗘妸瀹冭繛鎺ュ埌鍦ㄦ爲涓换浣曞叾浠栬妭鐐圭殑璺緞銆�

濡傛灉涓�涓妭鐐规病鏈夊効瀛愶紝鎴戜滑绉颁箣涓�鍙跺瓙鑺傜偣锛屽洜涓哄湪鐩磋涓婂畠鏄湪鏍戠殑杈圭紭涓娿�傚瓙鏍戞槸浠庣壒瀹�鑺傜偣鍙互寤朵几鍒扮殑鏍戠殑鏌愪竴閮ㄥ垎锛屽叾鑷韩琚綋浣滀竴涓爲銆傚湪绾㈤粦鏍戜腑锛屽彾瀛愯鍋囧畾涓郝爊ull聽鎴栫┖銆�

鐢变簬绾㈤粦鏍戜篃鏄簩鍙夋煡鎵炬爲锛屽畠浠綋涓瘡涓�涓妭鐐圭殑姣旇緝鍊奸兘蹇呴』澶т簬鎴栫瓑浜庡湪瀹冪殑宸﹀瓙鏍戜腑鐨勬墍鏈夎妭鐐癸紝骞朵笖灏忎簬鎴栫瓑浜庡湪瀹冪殑鍙冲瓙鏍戜腑鐨勬墍鏈夎妭鐐广�傝繖纭繚绾㈤粦鏍戣繍浣滄椂鑳藉蹇�熺殑鍦ㄦ爲涓煡鎵剧粰瀹氱殑鍊笺��

鐢ㄩ��

绾㈤粦鏍戝拰AVL鏍戜竴鏍烽兘瀵规彃鍏ユ椂闂淬�佸垹闄ゆ椂闂村拰鏌ユ壘鏃堕棿鎻愪緵浜嗘渶濂藉彲鑳界殑鏈�鍧忔儏鍐垫媴淇濄�傝繖涓嶅彧鏄娇瀹冧滑鍦ㄦ椂闂存晱鎰熺殑搴旂敤濡傚嵆鏃跺簲鐢�(real time application)涓湁浠峰�硷紝鑰屼笖浣垮畠浠湁鍦ㄦ彁渚涙渶鍧忔儏鍐垫媴淇濈殑鍏朵粬鏁版嵁缁撴瀯涓綔涓哄缓閫犳澘鍧楃殑浠峰�硷紱渚嬪锛屽湪璁$畻鍑犱綍涓娇鐢ㄧ殑寰堝鏁版嵁缁撴瀯閮藉彲浠ュ熀浜庣孩榛戞爲銆�

绾㈤粦鏍戝湪鍑芥暟寮�缂栫▼涓篃鐗瑰埆鏈夌敤锛屽湪杩欓噷瀹冧滑鏄渶甯哥敤鐨勬寔涔�鏁版嵁缁撴瀯涔嬩竴锛屽畠浠敤鏉ユ瀯閫�鍏宠仈鏁扮粍鍜岄泦鍚堬紝鍦ㄧ獊鍙樹箣鍚庡畠浠兘淇濇寔涓轰互鍓嶇殑鐗堟湰銆傞櫎浜哋(log n)鐨勬椂闂翠箣澶栵紝绾㈤粦鏍戠殑鎸佷箙鐗堟湰瀵规瘡娆℃彃鍏ユ垨鍒犻櫎闇�瑕丱(log n)鐨勭┖闂淬��

绾㈤粦鏍戞槸2-3-4鏍�鐨勪竴绉嶇瓑鍚屻�傛崲鍙ヨ瘽璇达紝瀵逛簬姣忎釜聽2-3-4聽鏍戯紝閮藉瓨鍦ㄨ嚦灏戜竴涓�鏁版嵁鍏冪礌鏄悓鏍锋搴忕殑绾㈤粦鏍戙�傚湪聽2-3-4聽鏍戜笂鐨勬彃鍏ュ拰鍒犻櫎鎿嶄綔涔熺瓑鍚屼簬鍦ㄧ孩榛戞爲涓鑹茬炕杞拰鏃嬭浆銆傝繖浣垮緱聽2-3-4聽鏍戞垚涓虹悊瑙g孩榛戞爲鑳屽悗鐨勯�昏緫鐨勯噸瑕佸伐鍏凤紝杩欎篃鏄緢澶氫粙缁嶇畻娉曠殑鏁欑涔﹀湪绾㈤粦鏍戜箣鍓嶄粙缁嵚�2-3-4聽鏍戠殑鍘熷洜锛屽敖绠÷�2-3-4聽鏍戝湪瀹炶返涓笉缁忓父浣跨敤銆�

鎿嶄綔

鍦ㄧ孩榛戞爲涓婂彧璇绘搷浣滀笉闇�瑕佸鐢ㄤ簬浜屽弶鏌ユ壘鏍戠殑鎿嶄綔鍋氬嚭淇敼锛屽洜涓哄畠涔熸槸浜屽弶鏌ユ壘鏍戙�備絾鏄紝鍦ㄦ彃鍏ュ拰鍒犻櫎涔嬪悗锛岀孩榛戝睘鎬у彲鑳藉彉寰楄繚瑙勩�傛仮澶嶇孩榛戝睘鎬ч渶瑕佸皯閲�(O(log n))鐨勯鑹插彉鏇�(杩欏湪瀹炶返涓槸闈炲父蹇�熺殑)骞朵笖涓嶈秴杩囦笁娆�鏍戞棆杞�(瀵逛簬鎻掑叆鏄袱娆�)銆傝繖鍏佽鎻掑叆鍜屽垹闄や繚鎸佷负聽O(log n)聽娆★紝浣嗘槸瀹冨鑷翠簡闈炲父澶嶆潅鐨勬搷浣溿�俒1]

璇嶆潯鍥惧唽鏇村鍥惧唽


璇嶆潯鍥剧墖(3)


鏍戠殑宸︽棆(2)


Data_structures

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鈻�鍒楄〃鈻�閾捐〃鈻�闃熷垪鈻�鍫嗘爤

鈻�寰幆闃熷垪鈻�璺宠穬鍒楄〃聽聽



鈻�鏍�鈻�浜屽弶鏌ユ壘鏍�鈻�鍫�鈻�绾挎鏍�

鈻孩榛戞爲鈻�AVL鏍�聽聽



鈻�鍥�鈻�鏈夊悜鏃犵幆鍥�鈻�浜屽厓鍐崇瓥鍥�鈻�鏃犲悜鍥�


璁$畻鏈虹瀛︿腑鐨勬爲

浜屽弶鏍戔柂浜屽弶鏍�鈻�浜屽弶鏌ユ壘鏍�鈻�绗涘崱灏旀爲鈻�Top tree

鈻�T鏍�聽聽聽





鑷钩琛′簩鍙夋煡鎵炬爲鈻�AA鏍�鈻�AVL鏍�鈻孩榛戞爲鈻�浼稿睍鏍�

鈻�鏍戝爢鈻�鑺傜偣澶у皬骞宠 鏍�聽聽





B鏍戔柂B鏍�鈻�B+鏍�鈻�B*鏍�鈻�Bx鏍�

鈻�UB鏍�鈻�2-3鏍�鈻�2-3-4鏍�鈻�(a,b)-鏍�

鈻�Dancing tree鈻�H鏍�聽聽





Trie鈻�鍓嶇紑鏍�鈻�鍚庣紑鏍�鈻�鍩烘暟鏍�聽





绌洪棿鍒掑垎鏍戔柂鍥涘弶鏍�鈻�鍏弶鏍�鈻�k-d鏍�鈻�vp-鏍�

鈻�R鏍�鈻�R*鏍�鈻�R+鏍�鈻�X鏍�

鈻�M鏍�鈻�绾挎鏍�鈻�甯屽皵浼壒R鏍�鈻�浼樺厛R鏍�





闈炰簩鍙夋爲鈻�Exponential tree鈻�Fusion tree鈻�鍖洪棿鏍�鈻�PQ tree

鈻�Range tree鈻�SPQR tree鈻�Van Emde Boas tree聽





鍏朵粬绫诲瀷鈻�鍫�鈻�鏁e垪鏍�鈻�Finger tree鈻�Metric tree

鈻�Cover tree鈻�BK-tree鈻�Doubly-chained tree鈻�iDistance

鈻�Link-cut tree鈻�鏍戠姸鏁扮粍聽聽




鍙傝�冭祫鏂�

B鏍�

鍦˙-鏍戜腑鏌ユ壘缁欏畾鍏抽敭瀛�鐨勬柟娉曟槸锛岄鍏堟妸鏍圭粨鐐瑰彇鏉ワ紝鍦ㄦ牴缁撶偣鎵�鍖呭惈鐨勫叧閿瓧K1,鈥�,Kn鏌ユ壘缁欏畾鐨勫叧閿瓧锛堝彲鐢ㄩ『搴忔煡鎵炬垨浜屽垎鏌ユ壘娉曪級锛岃嫢鎵惧埌绛変簬缁欏畾鍊肩殑鍏抽敭瀛楋紝鍒欐煡鎵炬垚鍔燂紱鍚﹀垯锛屼竴瀹氬彲浠ョ‘瀹氳鏌ユ壘鐨勫叧閿瓧鍦↘i涓嶬i+1涔嬮棿锛孭i涓烘寚鍚戝瓙鏍戞牴鑺傜偣鐨勬寚閽堬紝姝ゆ椂鍙�鎸囬拡Pi鎵�鎸囩殑缁撶偣缁х画鏌ユ壘锛岀洿鑷虫壘鍒帮紝鎴栨寚閽圥i涓虹┖鏃舵煡鎵惧け璐ャ��

涓枃鍚�

B鏍�

澶栨枃鍚�

B tree

鍒О

B-鏍戙�丅_鏍�

鎻愬嚭鑰�

R.Bayer鍜孍.mccreight

鎻愬嚭鏃堕棿

1970骞�

搴旂敤瀛︾

璁$畻鏈�

閫傜敤棰嗗煙鑼冨洿

杞欢

閫傜敤棰嗗煙鑼冨洿

缂栫▼

鐩綍

00001.聽1聽瀹氫箟

00002.聽2聽鎬ц兘鍒嗘瀽

00003.聽3聽绀轰緥

瀹氫箟

B鏍懧燵1]

1970骞达紝R.Bayer鍜孍.mccreight鎻愬嚭浜嗕竴绉嶉�傜敤浜庡鏌ユ壘鐨�鏍�锛屽畠鏄竴绉嶅钩琛$殑澶氬弶鏍戯紝绉颁负B鏍戯紙鎴朆-鏍戙�丅_鏍戯級銆�

涓�妫祄闃禕鏍�(balanced tree of order m)鏄竴妫靛钩琛$殑m璺悳绱㈡爲銆傚畠鎴栬�呮槸绌烘爲锛屾垨鑰呮槸婊¤冻涓嬪垪鎬ц川鐨勬爲锛�

1銆佹牴缁撶偣鑷冲皯鏈変袱涓瓙濂筹紱

2銆佹瘡涓潪鏍硅妭鐐规墍鍖呭惈鐨勫叧閿瓧涓暟聽j聽婊¤冻锛氣攲m/2鈹� - 1 <= j <= m - 1锛�

3銆侀櫎鏍圭粨鐐逛互澶栫殑鎵�鏈夌粨鐐癸紙涓嶅寘鎷彾瀛愮粨鐐癸級鐨勫害鏁版濂芥槸鍏抽敭瀛楁�绘暟鍔�1锛屾晠鍐呴儴瀛愭爲涓暟聽k聽婊¤冻锛氣攲m/2鈹� <= k <= m聽锛�

4銆佹墍鏈夌殑鍙跺瓙缁撶偣閮戒綅浜庡悓涓�灞傘��

鍦˙-鏍戜腑锛屾瘡涓粨鐐逛腑鍏抽敭瀛椾粠灏忓埌澶ф帓鍒楋紝骞朵笖褰撹缁撶偣鐨勫瀛愭槸闈炲彾瀛愮粨鐐规椂锛岃k-1涓叧閿瓧姝eソ鏄痥涓瀛愬寘鍚殑鍏抽敭瀛楃殑鍊煎煙鐨勫垎鍒掋��

鍥犱负鍙跺瓙缁撶偣涓嶅寘鍚叧閿瓧锛屾墍浠ュ彲浠ユ妸鍙跺瓙缁撶偣鐪嬫垚鍦ㄦ爲閲屽疄闄呬笂骞朵笉瀛樺湪澶栭儴缁撶偣锛屾寚鍚戣繖浜涘閮ㄧ粨鐐圭殑鎸囬拡涓虹┖锛屽彾瀛愮粨鐐圭殑鏁扮洰姝eソ绛変簬鏍戜腑鎵�鍖呭惈鐨勫叧閿瓧鎬讳釜鏁板姞1銆�

B-鏍戜腑鐨勪竴涓寘鍚玭涓叧閿瓧锛宯+1涓寚閽堢殑缁撶偣鐨勪竴鑸舰寮忎负锛� 锛坣,P0,K1,P1,K2,P2,鈥�,Kn,Pn锛�

鍏朵腑锛孠i涓哄叧閿瓧锛孠1

鎬ц兘鍒嗘瀽

璁綛-鏍戝寘鍚玁涓叧閿瓧锛屽洜姝ゆ湁N+1涓彾瀛愮粨鐐癸紝鍙跺瓙閮藉湪绗琁灞傘�傚洜涓烘牴鑷冲皯鏈変袱涓瀛愶紝鍥犳绗簩灞傝嚦灏戞湁涓や釜缁撶偣銆傞櫎鏍瑰拰鍙跺瓙澶栵紝鍏跺畠缁撶偣鑷冲皯鏈夆攲m/2鈹愪釜瀛╁瓙锛屽洜姝ゅ湪绗笁灞傝嚦灏戞湁2*鈹宮/2鈹愪釜缁撶偣锛屽湪绗洓灞傝嚦灏戞湁2*(鈹宮/2鈹恀2)涓粨鐐癸紝锛庯紟锛庯紝鍦ㄧI灞傝嚦灏戞湁2*(鈹宮/2鈹恀(l-2) )涓粨鐐癸紝浜庢槸鏈夛細

N+1 鈮� 2*鈹宮/2鈹怚-2

鑰冭檻绗琇灞傜殑缁撶偣涓暟涓篘+1锛岄偅涔�2*(鈹宮/2鈹恀(l-2)锛夆墹N+1锛屼篃灏辨槸L灞傜殑鏈�灏戠粨鐐规暟鍒氬ソ杈惧埌N+1涓�

鍗筹細聽I鈮� log鈹宮/2鈹�((N+1)/2 )+2

鎵�浠ワ紝褰揃-鏍戝寘鍚玁涓叧閿叧閿瓧鏃讹紝B-鏍戠殑鏈�澶ч珮搴︿负l-1锛堝洜涓鸿绠桞-鏍戦珮搴︽椂锛屽彾缁撶偣鎵�鍦ㄥ眰涓嶈绠楀湪鍐咃級

鍗筹細log鈹宮/2鈹�((N+1)/2 )+1銆�

杩欎釜鍏紡淇濊瘉浜咮-鏍戠殑鏌ユ壘鏁堢巼鏄浉褰撻珮鐨勩��

绀轰緥

褰撳湪鍙跺瓙缁撶偣澶勪簬绗琇+1灞傜殑B鏍戜腑鎻掑叆鍏抽敭瀛楁椂锛岃鎻掑叆鐨勫叧閿瓧鎬绘槸杩涘叆绗琇灞傜殑缁撶偣銆�

鑻ュ湪涓�涓寘鍚玧

鎻掑叆绠楁硶婕旂ず锛氭彃鍏ヤ箣鍓嶅鍥�1锛�

鎻掑叆涔嬪墠鐨凚鏍�

鎻掑叆涔嬪悗濡傚浘2锛�

鎻掑叆涔嬪悗鐨凚鏍�

4. B-鏍戠殑鍒犻櫎:

褰撲粠B-鏍戜腑鍒犻櫎涓�涓叧閿瓧Ki鏃讹紝鎬荤殑鍒嗕负浠ヤ笅涓ょ鎯呭喌锛�

濡傛灉璇ュ叧閿瓧鎵�鍦ㄧ殑缁撶偣涓嶆槸鏈�涓嬪眰鐨勯潪鍙跺瓙缁撶偣锛屽垯鍏堥渶瑕佹妸姝ゅ叧閿瓧涓庡畠鍦˙-鏍戜腑鍚庣户瀵规崲浣嶇疆锛屽嵆浠ユ寚閽圥i鎵�鎸囧瓙鏍戜腑鐨勬渶灏忓叧閿瓧Y浠f浛Ki锛岀劧鍚庡湪鐩稿簲鐨勭粨鐐逛腑鍒犻櫎Y銆�

濡傛灉璇ュ叧閿瓧鎵�鍦ㄧ殑缁撶偣姝eソ鏄渶涓嬪眰鐨勯潪鍙跺瓙缁撶偣锛岃繖绉嶆儏鍐典笅锛屼細鏈変互涓嬩袱绉嶅彲鑳斤細

鈶犅犺嫢璇ュ叧閿瓧Ki鎵�鍦ㄧ粨鐐逛腑鐨勫叧閿瓧涓暟涓嶅皬浜庘攲m/2鈹愶紝鍒欏彲浠ョ洿鎺ヤ粠璇ョ粨鐐逛腑鍒犻櫎璇ュ叧閿瓧鍜岀浉搴旀寚閽堝嵆鍙��

鈶÷犺嫢璇ュ叧閿瓧Ki鎵�鍦ㄧ粨鐐逛腑鐨勫叧閿瓧涓暟灏忎簬鈹宮/2鈹愶紝鍒欑洿鎺ヤ粠缁撶偣涓垹闄ゅ叧閿瓧浼氬鑷存缁撶偣涓墍鍚叧閿瓧涓暟灏忎簬鈹宮/2鈹�-1聽銆傝繖绉嶆儏鍐典笅锛岄渶鑰冨療璇ョ粨鐐瑰湪B鏍戜腑鐨勫乏鎴栧彸鍏勫紵缁撶偣锛屼粠鍏勫紵缁撶偣涓Щ鑻ュ共涓叧閿瓧鍒拌缁撶偣涓潵锛堣繖涔熸秹鍙婂畠浠殑鍙屼翰缁撶偣涓殑涓�涓叧閿瓧瑕佷綔鐩稿簲鍙樺寲锛夛紝浣夸袱涓粨鐐逛腑鎵�鍚叧閿瓧涓暟鍩烘湰鐩稿悓锛涗絾濡傛灉鍏跺厔寮熺粨鐐圭殑鍏抽敭瀛椾釜鏁颁篃寰堝皯锛屽垰濂界瓑浜庘攲m/2鈹�-1聽锛岃繖绉嶇Щ鍔ㄥ垯涓嶈兘杩涜锛岃繖绉嶆儏褰笅锛岄渶瑕佹妸鍒犻櫎浜嗗叧閿瓧Ki鐨勭粨鐐广�佸畠鐨勫厔寮熺粨鐐瑰強瀹冧滑鍙屼翰缁撶偣涓殑涓�涓叧閿瓧鍚堝苟涓轰竴涓粨鐐广��

璇嶆潯鍥惧唽鏇村鍥惧唽


璇嶆潯鍥剧墖(5)


璁$畻鏈虹瀛︿腑鐨勬爲

浜屽弶鏍戔柂浜屽弶鏍�鈻�浜屽弶鏌ユ壘鏍�鈻�绗涘崱灏旀爲鈻�Top tree

鈻�T鏍�聽聽聽





鑷钩琛′簩鍙夋煡鎵炬爲鈻�AA鏍�鈻�AVL鏍�鈻�绾㈤粦鏍�鈻�浼稿睍鏍�

鈻�鏍戝爢鈻�鑺傜偣澶у皬骞宠 鏍�聽聽





B鏍戔柂B鏍戔柂B+鏍�鈻�B*鏍�鈻�Bx鏍�

鈻�UB鏍�鈻�2-3鏍�鈻�2-3-4鏍�鈻�(a,b)-鏍�

鈻�Dancing tree鈻�H鏍�聽聽





Trie鈻�鍓嶇紑鏍�鈻�鍚庣紑鏍�鈻�鍩烘暟鏍�聽





绌洪棿鍒掑垎鏍戔柂鍥涘弶鏍�鈻�鍏弶鏍�鈻�k-d鏍�鈻�vp-鏍�

鈻�R鏍�鈻�R*鏍�鈻�R+鏍�鈻�X鏍�

鈻�M鏍�鈻�绾挎鏍�鈻�甯屽皵浼壒R鏍�鈻�浼樺厛R鏍�





闈炰簩鍙夋爲鈻�Exponential tree鈻�Fusion tree鈻�鍖洪棿鏍�鈻�PQ tree

鈻�Range tree鈻�SPQR tree鈻�Van Emde Boas tree聽





鍏朵粬绫诲瀷鈻�鍫�鈻�鏁e垪鏍�鈻�Finger tree鈻�Metric tree

鈻�Cover tree鈻�BK-tree鈻�Doubly-chained tree鈻�iDistance

鈻�Link-cut tree鈻�鏍戠姸鏁扮粍聽聽




鍙傝�冭祫鏂�

路聽1.閮ㄥ垎鍐呭鏉ヨ嚜銆婃暟鎹粨鏋勩�嬬浜岀増锛屾竻鍗庡ぇ瀛﹀嚭鐗堢ぞ

鎻掑叆鎺掑簭

鏈変竴涓凡缁忔湁搴忕殑鏁版嵁搴忓垪锛岃姹傚湪杩欎釜宸茬粡鎺掑ソ鐨勬暟鎹簭鍒椾腑鎻掑叆涓�涓暟锛屼絾瑕佹眰鎻掑叆鍚庢鏁版嵁搴忓垪浠嶇劧鏈夊簭锛岃繖涓椂鍊欏氨瑕佺敤鍒颁竴绉嶆柊鐨勬帓搴忔柟娉曗�斺��鎻掑叆鎺掑簭娉�,鎻掑叆鎺掑簭鐨勫熀鏈搷浣滃氨鏄皢涓�涓暟鎹彃鍏ュ埌宸茬粡鎺掑ソ搴忕殑鏈夊簭鏁版嵁涓紝浠庤�屽緱鍒颁竴涓柊鐨勩�佷釜鏁板姞涓�鐨勬湁搴忔暟鎹紝绠楁硶閫傜敤浜庡皯閲忔暟鎹殑鎺掑簭锛�鏃堕棿澶嶆潅搴�涓篛(n^2)銆傛槸绋冲畾鐨勬帓搴忔柟娉曘�傛彃鍏ョ畻娉曟妸瑕佹帓搴忕殑鏁扮粍鍒嗘垚涓ら儴鍒嗭細绗竴閮ㄥ垎鍖呭惈浜嗚繖涓暟缁勭殑鎵�鏈夊厓绱狅紝浣嗗皢鏈�鍚庝竴涓厓绱犻櫎澶栵紙璁╂暟缁勫涓�涓┖闂存墠鏈夋彃鍏ョ殑浣嶇疆锛夛紝鑰岀浜岄儴鍒嗗氨鍙寘鍚繖涓�涓厓绱狅紙鍗冲緟鎻掑叆鍏冪礌锛夈�傚湪绗竴閮ㄥ垎鎺掑簭瀹屾垚鍚庯紝鍐嶅皢杩欎釜鏈�鍚庡厓绱犳彃鍏ュ埌宸叉帓濂藉簭鐨勭涓�閮ㄥ垎涓��

鎻掑叆鎺掑簭鐨勫熀鏈�濇兂鏄細姣忔灏嗕竴涓緟鎺掑簭鐨勮褰曪紝鎸夊叾鍏抽敭鐮佸�肩殑澶у皬鎻掑叆鍓嶉潰宸茬粡鎺掑簭鐨勬枃浠朵腑閫傚綋浣嶇疆涓婏紝鐩村埌鍏ㄩ儴鎻掑叆瀹屼负姝€��

涓枃鍚�

鎻掑叆鎺掑簭

澶栨枃鍚�

insertion sorting

绫诲瀷

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鍋囪鍦ㄤ竴涓棤搴忕殑鏁扮粍涓紝瑕佸皢璇ユ暟缁勪腑鐨勬暟鎸夋彃鍏ユ帓搴忕殑鏂规硶浠庡皬鍒板ぇ鎺掑簭銆傚亣璁惧晩a[]={3,5,2,1,4};鎻掑叆鎺掑簭鐨勬�濇兂灏辨槸姣斿ぇ灏忥紝婊¤冻鏉′欢浜ゆ崲浣嶇疆锛屼竴寮�濮嬩細鍍忓啋娉℃帓搴忎竴鏍凤紝浣嗕細姣斿啋娉″涓�姝ュ氨鏄氦鎹㈠悗锛坅[i]=a[i+1]鍚庯級鍘熶綅缃紙a[i]锛変細缁х画鍜屽墠闈㈢殑鏁版瘮杈冩弧瓒虫潯浠朵氦鎹紝鐩村埌a[i+1]鍓嶉潰鐨勬暟缁勬槸鏈夊簭鐨勩�傛瘮濡傚湪绗簩娆℃瘮杈冨悗鏁扮粍鍙樻垚a[]={2,3,5,1,4};

璁捐姝ラ

绠楁硶璁捐鏈夊緢澶氭柟娉曘�傛彃鍏ユ帓搴忎娇鐢ㄧ殑鏄閲忥紙incremental锛夋柟娉曪紱鍦ㄦ帓濂藉瓙鏁扮粍A[1..j-1]鍚庯紝灏咥[j]鎻掑叆锛屽舰鎴愭帓濂藉簭鐨勫瓙鏁扮粍A[1..j]锛�

姝ラ

鈷堜粠鏈夊簭鏁板垪鍜屾棤搴忔暟鍒梴a2,a3锛屸�︼紝an}寮�濮嬭繘琛屾帓搴忥紱

鈷夊鐞嗙i涓厓绱犳椂锛坕=2,3锛屸�︼紝n锛夛紝鏁板垪{a1,a2锛屸�︼紝ai-1}鏄凡鏈夊簭鐨勶紝鑰屾暟鍒梴ai,ai+1锛屸�︼紝an}鏄棤搴忕殑銆傜敤ai涓巃i-1锛宎 i-2锛屸�︼紝a1杩涜姣旇緝锛屾壘鍑哄悎閫傜殑浣嶇疆灏哸i鎻掑叆锛�

鈷婇噸澶嶇浜屾锛屽叡杩涜n-i娆℃彃鍏ュ鐞嗭紝鏁板垪鍏ㄩ儴鏈夊簭銆�

鎬濊矾

鍋囧畾杩欎釜鏁扮粍鐨勫簭鏄帓濂界殑锛岀劧鍚庝粠澶村線鍚庯紝濡傛灉鏈夋暟姣斿綋鍓嶅灞傚厓绱犵殑鍊煎ぇ锛屽垯灏嗚繖涓暟鐨勪綅缃線鍚庢尓锛岀洿鍒板綋鍓嶅灞傚厓绱犵殑鍊煎ぇ浜庢垨绛変簬瀹冨墠闈㈢殑浣嶇疆涓烘.杩欏叿绠楁硶鍦ㄦ帓瀹屽墠k涓暟涔嬪悗锛屽彲浠ヤ繚璇乤[1鈥]鏄眬閮ㄦ湁搴忕殑锛屼繚璇佷簡鎻掑叆杩囩▼鐨勬纭��.

鎻忚堪

涓�鑸潵璇达紝鎻掑叆鎺掑簭閮介噰鐢╥n-place鍦�鏁扮粍涓婂疄鐜般�傚叿浣撶畻娉曟弿杩板涓嬶細

鈷埪犱粠绗竴涓厓绱犲紑濮嬶紝璇ュ厓绱犲彲浠ヨ涓哄凡缁忚鎺掑簭

鈷壜犲彇鍑轰笅涓�涓厓绱狅紝鍦ㄥ凡缁忔帓搴忕殑鍏冪礌搴忓垪涓粠鍚庡悜鍓嶆壂鎻�

鈷娐犲鏋滆鍏冪礌锛堝凡鎺掑簭锛夊ぇ浜庢柊鍏冪礌锛屽皢璇ュ厓绱犵Щ鍒颁笅涓�浣嶇疆

鈷嬄犻噸澶嶆楠�3锛岀洿鍒版壘鍒板凡鎺掑簭鐨勫厓绱犲皬浜庢垨鑰呯瓑浜庢柊鍏冪礌鐨勪綅缃�

鈷屄犲皢鏂板厓绱犳彃鍏ュ埌涓嬩竴浣嶇疆涓�

鈷嵚犻噸澶嶆楠�2~5

濡傛灉姣旇緝鎿嶄綔鐨勪唬浠锋瘮浜ゆ崲鎿嶄綔澶х殑璇濓紝鍙互閲囩敤浜屽垎鏌ユ壘娉曟潵鍑忓皯姣旇緝鎿嶄綔鐨勬暟鐩�傝绠楁硶鍙互璁や负鏄彃鍏ユ帓搴忕殑涓�涓彉绉嶏紝绉颁负浜屽垎鏌ユ壘鎺掑簭銆�

1聽

瀹炵幇

浼唬鐮�

INSERTION-SORT(A)

1forj=2tolength[A]

2dokey=A[j]

3 //InsertA[j] into the sorted sequenceA[1..j-1].

4聽i=j-1

5聽whilei>0 andA[i] >key

6聽doA[i+1] =A[i]

7聽i=i-1

8聽A[i+1] =key

C璇█

绀轰緥浠g爜涓篊璇█锛岃緭鍏ュ弬鏁颁腑锛岄渶瑕佹帓搴忕殑鏁扮粍涓篴rray[ ]锛岃捣濮嬬储寮曚负first锛堟暟缁勬湁搴忛儴鍒嗘渶鍚庝竴涓殑涓嬫爣锛屾垨鑰呯洿鎺ユ爣0锛夛紝缁堟绱㈠紩涓簂ast锛堟暟缁勫厓绱犵殑鏈�鍚庝竴涓殑涓嬫爣锛夈�傜ず渚嬩唬鐮佺殑鍑芥暟閲囩敤insert-place鎺掑簭锛岃皟鐢ㄥ畬鎴愬悗锛宎rray[]涓粠first鍒發ast澶勪簬鍗囧簭鎺掑垪銆�

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voidinsertion_sort(intarray[],intfirst,intlast)

{

inti,j;

inttemp;

for(i=first+1;i

{

temp=array[i];

j=i-1;

//涓庡凡鎺掑簭鐨勬暟閫愪竴姣旇緝锛屽ぇ浜巘emp鏃讹紝璇ユ暟绉诲悗

while((j>=0)&&(array[j]>temp))

{

array[j+1]=array[j];

j--;

}

//瀛樺湪澶т簬temp鐨勬暟

if(j!=i-1)

{array[j+1]=temp;}

}


}

杩欎釜鏇村ソ锛�

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voidinsert_sort(int*array,unsignedintn)

{

inti,j;

inttemp;

for(i=1;i

{

temp=*(array+i);

for(j=i;j>0&&*(array+j-1)>temp;j--)

{

*(array+j)=*(array+j-1);

}

*(array+j)=temp;

}

}

c++鐗堟湰

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#include

template

voidinsertion_sort(biIterbegin,biIterend)

{

typedeftypenamestd::iterator_traits::value_typevalue_type;

biIterbond=begin;

std::advance(bond,1);

for(;bond!=end;std::advance(bond,1)){

value_typekey=*bond;

biIterins=bond;

biIterpre=ins;

std::advance(pre,-1);

while(ins!=begin&&*pre>key){

*ins=*pre;

std::advance(ins,-1);

std::advance(pre,-1);

}

*ins=key;

}

}

PHP鐗堟湰

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functioninsertSort($arr){

for($i=1;$i

$tmp=$arr[$i];

$key=$i-1;

while($key>=0&&$tmp<$arr[$key]){

$arr[$key+1]=$arr[$key];

$key--;

}

if(($key+1)!=$i)

$arr[$key+1]=$tmp;

}

return$arr;

}

Java鐗堟湰

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/**

*鎻掑叆鎺掑簭

*@paramarr

*@return

*/

privatestaticint[]聽insertSort(int[]arr){

if(arr聽==聽null||聽arr.length聽<聽2){

returnarr;

}

for(inti=1;i

for(intj=i;j>0;j--){

if(arr[j]

//TODO:

inttemp=arr[j];

arr[j]=arr[j-1];

arr[j-1]=temp;

}else{

//鎺ヤ笅鏉ユ槸鏃犵敤鍔�

break;

}

}

}

returnarr;

}

杩愯杞欢锛歟clipse

C#鐗堟湰

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classProgram

{

staticvoidMain(string[]args)

{

InsertionSort();

}

///

///鎻掑叆鎺掑簭娉�

///

privatestaticvoidInsertionSort()

{

Console.WriteLine("鎻掑叆鎺掑簭娉�");

inttemp=0;

int[]arr={23,44,66,76,98,11,3,9,7};


Console.WriteLine("鎺掑簭鍓嶇殑鏁扮粍锛�");

foreach(intiteminarr)

{

Console.Write(item+",");

}

Console.WriteLine();


varlength=arr.Length;


for(inti=1;i

{

for(intj=i;j>0;j--)

{

if(arr[j]>arr[j-1])

{

temp=arr[j];

arr[j]=arr[j-1];

arr[j-1]=temp;

}

}

//姣忔鎺掑簭鍚庢暟缁�

PrintResult(arr);

}

Console.ReadKey();

}

///

///鎵撳嵃缁撴灉

///

///

privatestaticvoidPrintResult(IEnumerablearr)

{

foreach(intiteminarr)

{

Console.Write(item+",");

}

Console.WriteLine();

}

}

Pascal鐗堟湰

procedure insertsort(var R:filetype);

//瀵筊[1..N]鎸夐�掑搴忚繘琛屾彃鍏ユ帓搴忥紝R[0]鏄洃瑙嗗摠

begin

for I := 2 To n do //渚濇鎻掑叆R[2],...,R[n]

begin

R[0]:=R[I];j:=l-1;

while R[0] < R[J] Do //鏌ユ壘R[I]鐨勬彃鍏ヤ綅缃�

begin

R[j+1]:=R[j]; //灏嗗ぇ浜嶳[I]鐨勫厓绱犲悗绉�

j:=j-1;

end;

R[j+1]:=R[0] ; //鎻掑叆R[I]

end;

end; //InsertSort

(杩愯杞欢锛欶ree Pascal IDE 2.6.4)

Ruby鐗堟湰

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definsertion_sort(array)聽聽

array.each_with_index聽do|element,聽index|聽聽聽聽

nextifindex聽==聽0#绗竴涓厓绱犻粯璁ゅ凡鎺掑簭聽聽聽聽

j聽=聽index聽-聽1

whilej聽>=聽0&&聽array[j]聽>聽element聽聽聽聽聽聽

array[j聽+聽1]聽=聽array[j]聽

j聽-=聽1

end

array[j聽+聽1]聽=聽element聽聽聽

end

array

end

Scala鐗堟湰

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definsertSort(ilist:Array[Int]){

for(i<-1untililist.length){

for(j<-(0untili).reverse){

if(ilist(j+1)

valtmp=ilist(j+1)

ilist(j+1)=ilist(j)

ilist(j)=tmp

}

}

}

}

绠楁硶澶嶆潅搴�

濡傛灉鐩爣鏄妸n涓厓绱犵殑搴忓垪鍗囧簭鎺掑垪锛岄偅涔堥噰鐢ㄦ彃鍏ユ帓搴忓瓨鍦ㄦ渶濂芥儏鍐靛拰鏈�鍧忔儏鍐点�傛渶濂芥儏鍐靛氨鏄紝搴忓垪宸茬粡鏄崌搴忔帓鍒椾簡锛屽湪杩欑鎯呭喌涓嬶紝闇�瑕佽繘琛岀殑姣旇緝鎿嶄綔闇�锛坣-1锛夋鍗冲彲銆傛渶鍧忔儏鍐靛氨鏄紝搴忓垪鏄檷搴忔帓鍒楋紝閭d箞姝ゆ椂闇�瑕佽繘琛岀殑姣旇緝鍏辨湁n(n-1)/2娆°�傛彃鍏ユ帓搴忕殑璧嬪�兼搷浣滄槸姣旇緝鎿嶄綔鐨勬鏁板姞涓娐�(n-1锛夋銆傚钩鍧囨潵璇存彃鍏ユ帓搴忕畻娉曠殑鏃堕棿澶嶆潅搴︿负O(n^2锛夈�傚洜鑰岋紝鎻掑叆鎺掑簭涓嶉�傚悎瀵逛簬鏁版嵁閲忔瘮杈冨ぇ鐨勬帓搴忓簲鐢ㄣ�備絾鏄紝濡傛灉闇�瑕佹帓搴忕殑鏁版嵁閲忓緢灏忥紝渚嬪锛岄噺绾у皬浜庡崈锛岄偅涔堟彃鍏ユ帓搴忚繕鏄竴涓笉閿欑殑閫夋嫨銆俒3]

绋冲畾鎬�

鎻掑叆鎺掑簭鏄湪涓�涓凡缁忔湁搴忕殑灏忓簭鍒楃殑鍩虹涓婏紝涓�娆℃彃鍏ヤ竴涓厓绱犮�傚綋鐒讹紝鍒氬紑濮嬭繖涓湁搴忕殑灏忓簭鍒楀彧鏈�1涓厓绱狅紝灏辨槸绗竴涓厓绱犮�傛瘮杈冩槸浠庢湁搴忓簭鍒楃殑鏈熬寮�濮嬶紝涔熷氨鏄兂瑕佹彃鍏ョ殑鍏冪礌鍜屽凡缁忔湁搴忕殑鏈�澶ц�呭紑濮嬫瘮璧凤紝濡傛灉姣斿畠澶у垯鐩存帴鎻掑叆鍦ㄥ叾鍚庨潰锛屽惁鍒欎竴鐩村線鍓嶆壘鐩村埌鎵惧埌瀹冭鎻掑叆鐨勪綅缃�傚鏋滅瑙佷竴涓拰鎻掑叆鍏冪礌鐩哥瓑鐨勶紝閭d箞鎻掑叆鍏冪礌鎶婃兂鎻掑叆鐨勫厓绱犳斁鍦ㄧ浉绛夊厓绱犵殑鍚庨潰銆傛墍浠ワ紝鐩哥瓑鍏冪礌鐨勫墠鍚庨『搴忔病鏈夋敼鍙橈紝浠庡師鏃犲簭搴忓垪鍑哄幓鐨勯『搴忓氨鏄帓濂藉簭鍚庣殑椤哄簭锛屾墍浠ユ彃鍏ユ帓搴忔槸绋冲畾鐨勩��

鍘熷湴鎺掑簭

鈻�甯屽皵鎺掑簭鈻�鍐掓场鎺掑簭鈻彃鍏ユ帓搴忊柂閫夋嫨鎺掑簭鈻�鍫嗘帓搴�

妗舵帓搴�

妗舵帓搴徛�(Bucket sort)鎴栨墍璋撶殑绠辨帓搴忥紝鏄竴涓�鎺掑簭绠楁硶锛屽伐浣滅殑鍘熺悊鏄皢鏁扮粍鍒嗗埌鏈夐檺鏁伴噺鐨勬《瀛愰噷銆傛瘡涓《瀛愬啀涓埆鎺掑簭锛堟湁鍙兘鍐嶄娇鐢ㄥ埆鐨�鎺掑簭绠楁硶鎴栨槸浠ラ�掑綊鏂瑰紡缁х画浣跨敤妗舵帓搴忚繘琛屾帓搴忥級銆傛《鎺掑簭鏄�楦藉发鎺掑簭鐨勪竴绉�褰掔撼缁撴灉銆傚綋瑕佽鎺掑簭鐨勬暟缁勫唴鐨勬暟鍊兼槸鍧囧寑鍒嗛厤鐨勬椂鍊欙紝妗舵帓搴忎娇鐢ㄧ嚎鎬ф椂闂达紙螛锛�n锛夛級銆備絾妗舵帓搴忓苟涓嶆槸聽姣旇緝鎺掑簭锛屼粬涓嶅彈鍒奥燨(n log n)涓嬮檺鐨勫奖鍝嶃��

涓枃鍚�

妗舵帓搴�

瑕佹眰

鏁版嵁鐨勯暱搴﹀繀椤诲畬鍏ㄤ竴鏍�

鍏紡

Data=rand()/10000+10000

鏁版嵁缁撴瀯璁捐

閾捐〃鍙互閲囩敤寰堝绉嶆柟寮忓疄鐜�

鎬ц川

骞冲潎鎯呭喌涓嬫《鎺掑簭浠ョ嚎鎬ф椂闂磋繍琛�

鍘熺悊

妗舵帓搴忓埄鐢ㄥ嚱鏁扮殑鏄犲皠鍏崇郴

棰嗗煙

璁$畻鏈虹畻娉�

鐩綍

00001.聽1聽瀹氫箟

00002.聽2聽绠楁硶

00003.聽3聽浠d环

00001.聽4聽婧愮爜

00002.聽鈻�C++

00003.聽鈻�JAVA

00004.聽鈻�PAS

00001.聽5聽搴旂敤

00002.聽鈻�娴烽噺鏁版嵁

00003.聽鈻�鍏稿瀷

瀹氫箟

鍋囧畾锛氳緭鍏ユ槸鐢变竴涓殢鏈鸿繃绋嬩骇鐢熺殑[0, 1)鍖洪棿涓婂潎鍖�鍒嗗竷鐨勫疄鏁般�傚皢鍖洪棿[0, 1)鍒掑垎涓簄涓ぇ灏忕浉绛夌殑瀛愬尯闂达紙妗讹級锛屾瘡妗跺ぇ灏�1/n锛歔0, 1/n)锛屄燵1/n, 2/n)锛屄燵2/n, 3/n)锛屸�︼紝[k/n, (k+1)/n )锛屸�﹀皢n涓緭鍏�鍏冪礌鍒嗛厤鍒拌繖浜涙《涓紝瀵规《涓厓绱犺繘琛屾帓搴忥紝鐒跺悗渚濇杩炴帴妗惰緭鍏�0 鈮[1..n] <1杈呭姪鏁扮粍B[0..n-1]鏄竴鎸囬拡鏁扮粍锛屾寚鍚戞《锛�閾捐〃锛夈��

绠楁硶

妗舵帓搴忕畻娉曡姹傦紝鏁版嵁鐨勯暱搴﹀繀椤诲畬鍏ㄤ竴鏍凤紝绋嬪簭杩囩▼瑕佷骇鐢熼暱搴︾浉鍚岀殑鏁版嵁锛屼娇鐢ㄤ笅闈㈢殑鏂规硶锛欴ata=rand()/10000+10000涓婇潰鎻愬埌鐨勶紝姣忔涓嬩竴娆$殑鎵弿椤哄簭鏄寜鐓т笂娆℃壂鎻忕殑缁撴灉鏉ョ殑锛屾墍浠ヨ璁′笂鎻愪緵鐩稿悓鐨勪袱涓《鏁版嵁缁撴瀯銆傚墠涓�涓繚瀛樻瘡涓�娆℃壂鎻忕殑缁撴灉渚涗笅娆¤皟鐢紝鍙﹀涓�涓复鏃舵嫹璐濆墠涓�娆℃壂鎻忕殑缁撴灉鎻愪緵缁欏墠涓�涓皟鐢ㄣ��

鏁版嵁缁撴瀯璁捐锛氶摼琛ㄥ彲浠ラ噰鐢ㄥ緢澶氱鏂瑰紡瀹炵幇锛岄�氬父鐨勬柟娉曟槸鍔ㄦ�佺敵璇峰唴瀛樺缓绔嬬粨鐐癸紝浣嗘槸閽堝杩欎釜绠楁硶锛屾《閲岄潰鐨勯摼琛ㄧ粨鏋滄瘡娆℃壂鎻忓悗閮戒笉鍚岋紝灏辨湁寰堝閾捐〃鐨勫垎绂诲拰閲嶅缓銆傚鏋滀娇鐢ㄥ姩鎬佸垎閰嶅唴瀛橈紝鍒欑敱浜庢寚閽堢殑浣跨敤锛屽畨鍏ㄦ�т綆銆傛墍浠ワ紝绗旇�呰璁℃椂浣跨敤浜嗘暟缁勬潵妯℃嫙閾捐〃锛堝綋鐒剁壓鐗蹭簡閮ㄥ垎鐨勭┖闂达紝浣嗘槸鎿嶄綔鍗存槸绠�鍗曚簡寰堝锛岀ǔ瀹氭�т篃澶уぇ鎻愰珮浜嗭級銆傚叡鍗佷釜妗讹紝鎵�浠ュ缓绔嬩竴涓簩缁存暟缁勶紝琛屽悜閲忕殑涓嬫爣0鈥�9浠h〃浜�10涓《锛屾瘡涓褰㈡垚鐨勪竴缁存暟缁勫垯鏄《鐨勭┖闂淬��

骞冲潎鎯呭喌涓嬫《鎺掑簭浠ョ嚎鎬ф椂闂磋繍琛屻�傚儚鍩烘暟鎺掑簭涓�鏍凤紝妗舵帓搴忎篃瀵硅緭鍏ヤ綔浜嗘煇绉嶅亣璁撅紝聽鍥犺�岃繍琛屽緱寰堝揩銆傚叿聽浣撴潵璇达紝鍩烘暟鎺掑簭鍋囪杈撳叆鏄敱涓�涓皬鑼冨洿鍐呯殑鏁存暟鏋勬垚锛岃�屾《鎺掑簭鍒櫬犲亣璁捐緭鍏ョ敱涓�涓殢鏈鸿繃绋嬩骇鐢燂紝璇ヨ繃绋嬪皢鍏冪礌涓�鑷村湴鍒嗗竷鍦ㄥ尯闂碵0锛�1)涓娿�� 妗舵帓搴忕殑鎬濇兂灏辨槸鎶婂尯闂碵0锛�1)鍒掑垎鎴恘涓浉鍚屽ぇ灏忕殑瀛愬尯闂达紝鎴栫О妗讹紝鐒跺悗灏唍涓緭鍏ユ暟鍒嗗竷鍒板悇涓《涓幓銆傚洜涓鸿緭鍏ユ暟鍧囧寑鍒嗗竷鍦╗0锛�1)涓婏紝鎵�浠ヤ竴鑸笉浼氭湁寰堝鏁拌惤鍦ㄤ竴涓《涓殑鎯呭喌銆備负寰楀埌缁撴灉锛屽厛瀵瑰悇涓《涓殑鏁拌繘琛屾帓搴忥紝鐒跺悗鎸夋搴忔妸鍚勬《涓殑鍏冪礌鍒楀嚭鏉ュ嵆鍙��

鍦ㄦ《鎺掑簭绠楁硶鐨勪唬鐮佷腑锛屽亣璁捐緭鍏ユ槸鍚玭涓厓绱犵殑鏁扮粍A锛屼笖姣忎釜鍏冪礌婊¤冻0鈮� A[i]<1銆傚彟澶栬繕闇�瑕佷竴涓緟鍔�鏁扮粍B[O..n-1]鏉ュ瓨鏀�閾捐〃瀹炵幇鐨勬《锛屽苟鍋囪鍙互鐢ㄦ煇绉嶆満鍒舵潵缁存姢杩欎簺琛ㄣ��

妗舵帓搴忕殑绠楁硶濡備笅(浼唬鐮�琛ㄧず)锛屽叾涓璮loor(x)鏄湴鏉垮嚱鏁帮紝琛ㄧず涓嶈秴杩噚鐨勬渶澶ф暣鏁般��

procedure Bin_Sort(var A:List);begin

n:=length(A);

for i:=1 to n do

灏咥[i]鎻掑埌琛˙[floor(n*A[i])]涓�;

for i:=0 to n-1 do

鐢�鎻掑叆鎺掑簭瀵硅〃B[i]杩涜鎺掑簭;

灏嗚〃B[0],B[1],...,B[n-1]鎸夐『搴忓悎骞�;

end;

鍙冲浘婕旂ず浜嗘《鎺掑簭浣滅敤浜庢湁10涓暟鐨勮緭鍏�鏁扮粍涓婄殑鎿嶄綔杩囩▼銆�(a)杈撳叆鏁扮粍A[1..10]銆�(b)鍦ㄨ绠楁硶鐨勭5琛屽悗鐨勬湁搴忚〃(妗�)鏁扮粍B[0..9]銆傛《i涓瓨鏀句簡鍖洪棿[i/10锛�(i+1)/10]涓婄殑鍊笺�傛帓搴忚緭鍑虹敱琛˙[O]銆丅[1]銆�...銆丅[9]鐨勬寜搴忓苟缃瀯鎴愩��

瑕佽鏄庤繖涓畻娉曡兘姝g‘鍦板伐浣滐紝鐪嬩袱涓厓绱燗[i]鍜孉[j]銆傚鏋滃畠浠惤鍦ㄥ悓涓�涓《涓紝鍒欏畠浠湪杈撳嚭搴忓垪涓湁鐫�姝g‘鐨勭浉瀵规搴忥紝鍥犱负瀹冧滑鎵�鍦ㄧ殑妗舵槸閲囩敤鎻掑叆鎺掑簭鐨勩�傜幇鍋囪瀹冧滑钀藉埌涓嶅悓鐨勬《涓紝璁惧垎鍒负B[i']鍜孊[j']銆備笉澶变竴鑸�э紝鍋囪i' i'=floor(n*A[i])鈮loor(n*A[j])=j'聽寰楃煕鐩韭�(鍥犱负i'聽鏉ュ垎鏋愮畻娉曠殑杩愯鏃堕棿銆傞櫎绗�5琛屽锛屾墍鏈夊悇琛屽湪鏈�鍧忔儏鍐电殑鏃堕棿閮芥槸O(n)銆傜5琛屼腑妫�鏌ユ墍鏈夋《鐨勬椂闂存槸O(n)銆傚垎鏋愪腑鍞竴鏈夎叮鐨勯儴鍒嗗氨鍦ㄤ簬绗�5琛屼腑鎻掍汉鎺掑簭鎵�鑺辩殑鏃堕棿銆�

涓哄垎鏋愭彃浜烘帓搴忕殑鏃堕棿浠d环锛岃ni涓鸿〃绀烘《B[i]涓厓绱犱釜鏁扮殑闅忔満鍙橀噺銆傚洜涓�鎻掑叆鎺掑簭浠ヤ簩娆℃椂闂磋繍琛岋紝鏁呬负鎺掑簭妗禕[i]涓厓绱犵殑鏈熸湜鏃堕棿涓篍[O(ni2)]=O(E[ni2])锛屽鍚勪釜妗朵腑鐨勬墍鏈夊厓绱犳帓搴忕殑鎬绘湡鏈涙椂闂翠负锛歄(n)銆�


(1)聽涓轰簡姹傝繖涓拰寮忥紝瑕佺‘瀹氭瘡涓殢鏈哄彉閲弉i鐨勫垎甯冦�傛垜浠叡鏈塶涓厓绱狅紝n涓《銆傛煇涓厓绱犺惤鍒版《B[i]鐨勬鐜囦负l/n锛屽洜涓烘瘡涓《瀵瑰簲浜庡尯闂碵0锛�1)鐨刲/n銆傝繖绉嶆儏鍐典笌鎶曠悆鐨勪緥瀛愬緢绫讳技锛氭湁n涓悆聽(鍏冪礌)鍜宯涓洅瀛惵�(妗�)锛屾瘡娆℃姇鐞冮兘鏄嫭绔嬬殑锛屼笖浠ユ鐜噋=1/n钀藉埌浠讳竴妗朵腑銆傝繖鏍凤紝ni=k鐨勬鐜囧氨鏈嶄粠浜岄」鍒嗗竷B(k;n,p)锛屽叾鏈熸湜鍊间负E[ni]=np=1锛屾柟宸甐[ni]=np(1-p)=1-1/n銆傚浠绘剰闅忔満鍙橀噺X锛屾湁鍙冲浘鎵�绀�琛ㄨ揪寮�銆�

(2)灏嗚繖涓晫鐢ㄥ埌(1)寮忎笂锛屽緱鍑烘《鎺掑簭涓殑鎻掍汉鎺掑簭鐨勬湡鏈涜繍琛屾椂闂翠负O(n)銆傚洜鑰岋紝鏁翠釜妗舵帓搴忕殑鏈熸湜杩愯鏃堕棿灏辨槸绾挎�х殑銆�

浠d环

妗舵帓搴忓埄鐢ㄥ嚱鏁扮殑鏄犲皠鍏崇郴锛屽噺灏戜簡鍑犱箮鎵�鏈夌殑姣旇緝宸ヤ綔銆傚疄闄呬笂锛屾《鎺掑簭鐨刦(k)鍊肩殑璁$畻锛屽叾浣滅敤灏辩浉褰撲簬蹇帓涓垝鍒嗭紝宸茬粡鎶婂ぇ閲�鏁版嵁鍒嗗壊鎴愪簡鍩烘湰鏈夊簭鐨�鏁版嵁鍧�(妗�)銆傜劧鍚庡彧闇�瑕佸妗朵腑鐨勫皯閲忔暟鎹仛鍏堣繘鐨勬瘮杈冩帓搴忓嵆鍙��

瀵筃涓�鍏抽敭瀛�杩涜妗舵帓搴忕殑鏃堕棿澶嶆潅搴�鍒嗕负涓や釜閮ㄥ垎锛�

(1)聽寰幆璁$畻姣忎釜鍏抽敭瀛楃殑妗舵槧灏勫嚱鏁帮紝杩欎釜鏃堕棿澶嶆潅搴�鏄疧(N)銆�

(2)聽鍒╃敤鍏堣繘鐨勬瘮杈�鎺掑簭绠楁硶瀵规瘡涓《鍐呯殑鎵�鏈夋暟鎹繘琛屾帓搴忥紝鍏�鏃堕棿澶嶆潅搴�涓郝犫垜 O(Ni*logNi)聽銆傚叾涓璑i聽涓虹i涓《鐨勬暟鎹噺銆�

寰堟樉鐒讹紝绗�(2)閮ㄥ垎鏄《鎺掑簭鎬ц兘濂藉潖鐨勫喅瀹氬洜绱犮�傚敖閲忓噺灏戞《鍐呮暟鎹殑鏁伴噺鏄彁楂樻晥鐜囩殑鍞竴鍔炴硶(鍥犱负鍩轰簬姣旇緝鎺掑簭鐨勬渶濂藉钩鍧�鏃堕棿澶嶆潅搴�鍙兘杈惧埌O(N*logN)浜�)銆傚洜姝わ紝鎴戜滑闇�瑕佸敖閲忓仛鍒颁笅闈袱鐐癸細

(1)聽鏄犲皠鍑芥暟f(k)鑳藉灏哊涓暟鎹钩鍧囩殑鍒嗛厤鍒癕涓《涓紝杩欐牱姣忎釜妗跺氨鏈塠N/M]涓暟鎹噺銆�

(2)聽灏介噺鐨勫澶ф《鐨勬暟閲忋�傛瀬闄愭儏鍐典笅姣忎釜妗跺彧鑳藉緱鍒颁竴涓暟鎹紝杩欐牱灏卞畬鍏ㄩ伩寮�浜嗘《鍐呮暟鎹殑鈥滄瘮杈冣�濇帓搴忔搷浣溿�� 褰撶劧锛屽仛鍒拌繖涓�鐐瑰緢涓嶅鏄擄紝鏁版嵁閲忓法澶х殑鎯呭喌涓嬶紝f(k)鍑芥暟浼氫娇寰楁《闆嗗悎鐨勬暟閲忓法澶э紝绌洪棿娴垂涓ラ噸銆傝繖灏辨槸涓�涓椂闂翠唬浠峰拰绌洪棿浠d环鐨勬潈琛¢棶棰樹簡銆�

瀵逛簬N涓緟鎺掓暟鎹紝M涓《锛屽钩鍧囨瘡涓《[N/M]涓暟鎹殑妗舵帓搴忓钩鍧�鏃堕棿澶嶆潅搴�涓猴細

O(N)+O(M*(N/M)*log(N/M))=O(N+N*(logN-logM))=O(N+N*logN-N*logM)

褰揘=M鏃讹紝鍗虫瀬闄愭儏鍐典笅姣忎釜妗跺彧鏈変竴涓暟鎹椂銆傛《鎺掑簭鐨勬渶濂芥晥鐜囪兘澶熻揪鍒癘(N)銆�

鎬荤粨锛氭《鎺掑簭鐨勫钩鍧�鏃堕棿澶嶆潅搴�涓虹嚎鎬х殑O(N+C)锛屽叾涓瑿=N*(logN-logM)銆傚鏋滅浉瀵逛簬鍚屾牱鐨凬锛屾《鏁伴噺M瓒婂ぇ锛屽叾鏁堢巼瓒婇珮锛屾渶濂界殑鏃堕棿澶嶆潅搴�杈惧埌O(N)銆傚綋鐒舵《鎺掑簭鐨�绌洪棿澶嶆潅搴�涓篛(N+M)锛屽鏋滆緭鍏ユ暟鎹潪甯稿簽澶э紝鑰屾《鐨勬暟閲忎篃闈炲父澶氾紝鍒欑┖闂翠唬浠锋棤鐤戞槸鏄傝吹鐨勩�傛澶栵紝妗舵帓搴忔槸绋冲畾鐨勩�俒1]

婧愮爜

io.open();//鎵撳紑鎺у埗鍙�

/**-------------------------------------------------------*聽妗舵帓搴�**------------------------------------------------------*/

/*

妗舵帓搴忓亣璁捐緭鍏ュ厓绱犲潎鍖�鑰岀嫭绔嬪垎甯冨湪鍖洪棿[0,1)聽鍗陈�0 <= x and x < 1;灏嗗尯闂村垝鍒嗘垚n涓浉鍚屽ぇ灏忕殑瀛愬尯闂�(妗�)锛岀劧鍚庡皢n涓緭鍏ユ寜澶у皬鍒嗗竷鍒板悇涓《涓幓锛屽姣忎釜妗跺唴閮ㄨ繘琛屾帓搴忋�傛渶鍚庡皢鎵�鏈夋《鐨勬帓搴忕粨鏋滃悎骞惰捣鏉�.

*/

//鎻掑叆鎺掑簭绠楁硶

insert_sort = function( array ){

for( right=2;#array ) {

var top = array[right];

//Insert array[right] into the sorted seqquence array[1....right-1]

var left = right -1;

while( left and array[left]>top){

array[left+1] = array[left];

left--;

}

array[left+1] = top;

}

return array;

}

//妗�鎺掑簭绠楁硶

bucket_sort = function( array ){

var n = #array;

var bucket ={}

for(i=0;n;1){

bucket[i] = {} //鍒涘缓涓�涓《

}

var bucket_index

for(i=1;n;1){

bucket_index = math.floor(n * array[i]);

table.push( bucket [ bucket_index ],array[i] );//鏀惧埌妗堕噷鍘�

}

for(i=1;n;1){

insert_sort( bucket[i] ); //瀵规瘡涓《杩涜鎻掑叆鎺掑簭

}

return table.concat( table.unpack(bucket) )

}

io.print("----------------")

io.print("妗舵帓搴�")

io.print("----------------")

array={};

//妗舵帓搴忓亣璁捐緭鍏ユ槸鐢变竴涓殢鏈鸿繃绋嬩骇鐢熺殑灏忔暟.

math.randomize()

for(i=1;20;1){

table.push( array,math.random() )

}

//鎺掑簭

array = bucket_sort( array )

//杈撳嚭缁撴灉

for(i=1;#array;1){

io.print( array[i] )

}

execute("pause") //鎸�浠绘剰閿�缁х画

io.close();//鍏抽棴鎺у埗鍙�

C++

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#include

usingnamespace聽std;

inta[]={1,255,8,6,25,47,14,35,58,75,96,158,657};

constintlen=sizeof(a)/sizeof(int);

intb[10][len+1]={0};//灏哹鍏ㄩ儴缃�0

voidbucketSort(inta[]);//妗舵帓搴忓嚱鏁�

voiddistribute聽Elments(inta[],intb[10][len+1],intdigits);

voidcollectElments(inta[],intb[10][len+1]);

intnumOfDigits(inta[]);

voidzeroBucket(intb[10][len+1]);//灏哹鏁扮粍涓殑鍏ㄩ儴鍏冪礌缃�0

intmain()

{

cout<<"鍘熷鏁扮粍锛�";

for(inti=0;i

cout<

cout<

bucketSort(a);

cout<<"鎺掑簭鍚庢暟缁勶細";

for(inti=0;i

cout<

cout<

return0;

}

voidbucketSort(inta[])

{

intdigits=numOfDigits(a);

for(inti=1;i<=digits;i++)

{

distributeElments(a,b,i);

collectElments(a,b);

if(i!=digits)

zeroBucket(b);

}

}

intnumOfDigits(inta[])

{

intlargest=0;

for(inti=0;i

if(a[i]>largest)

largest=a[i];

intdigits=0;//digits涓烘渶澶у�肩殑浣嶆暟

while(largest)

{

digits++;

largest/=10;

}

returndigits;

}

voiddistributeElments(inta[],intb[10][len+1],intdigits)

{

intdivisor=10;//闄ゆ暟

for(inti=1;i

divisor*=10;

for(intj=0;j

{

intnumOfDigist=(a[j]%divisor-a[j]%(divisor/10))/(divisor/10);

//numOfDigits涓虹浉搴旂殑(divisor/10)浣嶇殑鍊�,濡傚綋divisor=10鏃�,姹傜殑鏄釜浣嶆暟

intnum=++b[numOfDigist][0];//鐢╞涓涓�鍒楃殑鍏冪礌鏉ュ偍瀛樻瘡琛屼腑鍏冪礌鐨勪釜鏁�

b[numOfDigist][num]=a[j];

}

}

voidcollectElments(inta[],intb[10][len+1])

{

intk=0;

for(inti=0;i<10;i++)

for(intj=1;j<=b[i][0];j++)

a[k++]=b[i][j];

}

voidzeroBucket(intb[][len+1])

{

for(inti=0;i<10;i++)

for(intj=0;j

b[i][j]=0;

}

JAVA

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publicstaticvoidbasket(intdata[])//data涓哄緟鎺掑簭鏁扮粍

{

intn=data.length;

intbask[][]=newint[10][n];

intindex[]=newint[10];

intmax=Integer.MIN_VALUE;

for(inti=0;i

{

max=max>(Integer.toString(data[i]).length())?max:(Integer.toString(data[i]).length());

}

String聽str;

for(inti=max-1;i>=0;i--)

{

for(intj=0;j

{

str="";

if(Integer.toString(data[j]).length()

{

for(intk=0;k

str+="0";

}

str+=Integer.toString(data[j]);

bask[str.charAt(i)-'0'][index[str.charAt(i)-'0']++]=data[j];

}

intpos=0;

for(intj=0;j<10;j++)

{

for(intk=0;k

{

data[pos++]=bask[j][k];

}

}

for(intx=0;x<10;x++)index[x]=0;

}

}

PAS

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programbarrel_sort;

var

a:array[0..100]聽ofinteger;

i,k,n:integer;

begin

fori:=0to100doa[i]:=0;{鍒濆鍖杴

readln(n);

fori:=1ton聽do

begin

read(k);

a[k]:=a[k]+1;{灏嗙瓑浜巏鐨勫�煎叏閮ㄨ鍏ョk妗朵腑}

end;

fori:=0to100do

whilea[i]>0do

begin

write(i:6);

a[i]:=a[i]-1;

end;{杈撳嚭鎺掑簭缁撴瀯}

end.

//杩欐搴旇鏄附宸㈡帓搴忥紝妗舵帓搴忓簲璇ユ湁娈垫《鍐呮瘮杈冩帓搴忕殑鍑芥暟

搴旂敤

娴烽噺鏁版嵁

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鍒嗘瀽锛氬500W鏁版嵁鎺掑簭锛屽鏋滃熀浜庢瘮杈冪殑鍏堣繘鎺掑簭锛屽钩鍧囨瘮杈冩鏁颁负O(5000000*log5000000)鈮�1.112浜裤�備絾鏄垜浠彂鐜帮紝杩欎簺鏁版嵁閮芥湁鐗规畩鐨勬潯浠讹細聽100=

鏂规硶锛氬垱寤�801(900-100)涓《銆傚皢姣忎釜鑰冪敓鐨勫垎鏁颁涪杩沠(score)=score-100鐨勬《涓�傝繖涓繃绋嬩粠澶村埌灏鹃亶鍘嗕竴閬嶆暟鎹彧闇�瑕�500W娆°�傜劧鍚庢牴鎹《鍙峰ぇ灏忎緷娆″皢妗朵腑鏁板�艰緭鍑猴紝鍗冲彲浠ュ緱鍒颁竴涓湁搴忕殑搴忓垪銆傝�屼笖鍙互寰堝鏄撶殑寰楀埌100鍒嗘湁***浜猴紝501鍒嗘湁***浜恒��

瀹為檯涓婏紝妗舵帓搴忓鏁版嵁鐨勬潯浠舵湁鐗规畩瑕佹眰锛屽鏋滀笂闈㈢殑鍒嗘暟涓嶆槸浠�100-900锛岃�屾槸浠�0-2浜匡紝閭d箞鍒嗛厤2浜夸釜妗舵樉鐒舵槸涓嶅彲鑳界殑銆傛墍浠ユ《鎺掑簭鏈夊叾灞�闄愭�э紝閫傚悎鍏冪礌鍊奸泦鍚堝苟涓嶅ぇ鐨勬儏鍐点��

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绗笁姝ワ細缁х画浠ュ唴瀛樹腑鐨勬煇涓《鍐呮暣鏁扮殑娆¢珮8bit锛堜粬浠殑鏈�楂�8bit鏄竴鏍风殑锛夎繘琛屾《鎺掑簭(23-16)銆傝繃绋嬪拰绗竴姝ョ浉鍚岋紝涔熸槸256涓《銆�

绗洓姝ワ細涓�鐩翠笅鍘伙紝鐩村埌鏈�浣庡瓧鑺�(7-0bit)鐨勬《鎺掑簭缁撴潫銆傛垜鐩镐俊杩欎釜鏃跺�欏畬鍏ㄥ彲浠ュ湪鍐呭瓨涓娇鐢ㄤ竴娆″揩鎺掑氨鍙互浜嗐��

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鍙傝�冭祫鏂�

路聽1.妗舵帓搴忎粙缁�

路聽2.妗舵帓搴忓強鍏跺簲鐢�

鍫嗘帓搴�

鍫嗘帓搴�(Heapsort)鏄寚鍒╃敤鍫嗙Н鏍戯紙鍫嗭級杩欑鏁版嵁缁撴瀯鎵�璁捐鐨勪竴绉�鎺掑簭绠楁硶锛屽畠鏄�夋嫨鎺掑簭鐨勪竴绉嶃�傚彲浠ュ埄鐢�鏁扮粍鐨勭壒鐐瑰揩閫熷畾浣嶆寚瀹氱储寮曠殑鍏冪礌銆傚爢鍒嗕负澶ф牴鍫嗗拰灏忔牴鍫嗭紝鏄畬鍏ㄤ簩鍙夋爲銆傚ぇ鏍瑰爢鐨勮姹傛槸姣忎釜鑺傜偣鐨勫�奸兘涓嶅ぇ浜庡叾鐖惰妭鐐圭殑鍊硷紝鍗矨[PARENT[i]] >= A[i]銆傚湪鏁扮粍鐨勯潪闄嶅簭鎺掑簭涓紝闇�瑕佷娇鐢ㄧ殑灏辨槸澶ф牴鍫嗭紝鍥犱负鏍规嵁澶ф牴鍫嗙殑瑕佹眰鍙煡锛屾渶澶х殑鍊间竴瀹氬湪鍫嗛《銆�

涓枃鍚�

鍫嗘帓搴�

澶栨枃鍚�

Heapsort

绫诲埆

鎺掑簭绠楁硶

鍙戞槑浜�

缃椾集鐗孤峰紬娲涗紛寰�

璧锋簮浜�

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鈶¤皟鏁村爢锛氳皟鏁村爢鍦ㄦ瀯寤哄爢鐨勮繃绋嬩腑浼氱敤鍒帮紝鑰屼笖鍦ㄥ爢鎺掑簭杩囩▼涓篃浼氱敤鍒般�傚埄鐢ㄧ殑鎬濇兂鏄瘮杈冭妭鐐筰鍜屽畠鐨勫瀛愯妭鐐筶eft(i),right(i)锛岄�夊嚭涓夎�呮渶澶�(鎴栬�呮渶灏�)鑰咃紝濡傛灉鏈�澶э紙灏忥級鍊间笉鏄妭鐐筰鑰屾槸瀹冪殑涓�涓瀛愯妭鐐癸紝閭h竟浜や簰鑺傜偣i鍜岃鑺傜偣锛岀劧鍚庡啀璋冪敤璋冩暣鍫嗚繃绋嬶紝杩欐槸涓�涓�掑綊鐨勮繃绋嬨�傝皟鏁村爢鐨勮繃绋嬫椂闂村鏉傚害涓庡爢鐨勬繁搴︽湁鍏崇郴锛屾槸lgn鐨勬搷浣滐紝鍥犱负鏄部鐫�娣卞害鏂瑰悜杩涜璋冩暣鐨勩��

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娉ㄦ剰

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鐗圭偣

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绠楁硶鍒嗘瀽

缂栬緫

鍫嗘帓搴忕殑鏃堕棿锛屼富瑕佺敱寤虹珛鍒濆鍫嗗拰鍙嶅閲嶅缓鍫嗚繖涓ら儴鍒嗙殑鏃堕棿寮�閿�鏋勬垚锛屽畠浠潎鏄�氳繃璋冪敤Heapify瀹炵幇鐨勩��

骞冲潎鎬ц兘

O(N*logN)銆�

鍏朵粬鎬ц兘

鐢变簬寤哄垵濮嬪爢鎵�闇�鐨勬瘮杈冩鏁拌緝澶氾紝鎵�浠ュ爢鎺掑簭涓嶉�傚疁浜庤褰曟暟杈冨皯鐨勬枃浠躲��

鍫嗘帓搴忔槸灏卞湴鎺掑簭锛岃緟鍔╃┖闂翠负O(1).

瀹冩槸涓嶇ǔ瀹氱殑鎺掑簭鏂规硶銆傦紙鎺掑簭鐨勭ǔ瀹氭�ф槸鎸囧鏋滃湪鎺掑簭鐨勫簭鍒椾腑锛屽瓨鍦ㄥ墠鍚庣浉鍚岀殑涓や釜鍏冪礌鐨勮瘽锛屾帓搴忓墠聽鍜屾帓搴忓悗浠栦滑鐨勭浉瀵逛綅缃笉鍙戠敓鍙樺寲锛�

绀轰緥浠g爜

缂栬緫

C璇█

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#include聽


voidswap(int*a,聽int*b);

voidadjustHeap(intparam1,intj,聽intinNums[]);

voidHeapSort(intnums,聽intinNums[]);

//澶ф牴鍫嗚繘琛岃皟鏁�

voidadjustHeap(intparam1,聽intj,聽intinNums[])

{

inttemp=inNums[param1];

for(intk=param1*2+1;k

{

//濡傛灉鍙宠竟鍊煎ぇ浜庡乏杈瑰�硷紝鎸囧悜鍙宠竟

if(k+1

{

k++;

}

//濡傛灉瀛愯妭鐐瑰ぇ浜庣埗鑺傜偣锛屽皢瀛愯妭鐐瑰�艰祴缁欑埗鑺傜偣,骞朵互鏂扮殑瀛愯妭鐐逛綔涓虹埗鑺傜偣锛堜笉鐢ㄨ繘琛屼氦鎹級

if(inNums[k]>temp)

{

inNums[param1]=inNums[k];

param1=k;

}

else

break;

}

//put聽the聽value聽in聽the聽final聽position

inNums[param1]=temp;

}

//鍫嗘帓搴忎富瑕佺畻娉�

voidHeapSort(intnums,intinNums[])

{

//1.鏋勫缓澶ч《鍫�

for(inti=nums/2-1;i>=0;i--)

{

//put聽the聽value聽in聽the聽final聽position

adjustHeap(i,nums,inNums);

}

//2.璋冩暣鍫嗙粨鏋�+浜ゆ崲鍫嗛《鍏冪礌涓庢湯灏惧厓绱�

for(intj=nums-1;j>0;j--)

{

//鍫嗛《鍏冪礌鍜屾湯灏惧厓绱犺繘琛屼氦鎹�

inttemp=inNums[0];

inNums[0]=inNums[j];

inNums[j]=temp;


adjustHeap(0,j,inNums);//閲嶆柊瀵瑰爢杩涜璋冩暣

}

}

intmain()聽{

intdata[]聽=聽{6,5,8,4,7,9,1,3,2};

intlen聽=聽sizeof(data)聽/聽sizeof(int);

HeapSort(len,data);

return0;

}

C++

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3148

//鍫嗘帓搴�

//鏁寸悊鑺傜偣time:O(lgn)

template

voidMinHeapify(T*arry,intsize,intelement)

{

intlchild=element*2+1,rchild=lchild+1;//宸﹀彸瀛愭爲

while(rchild

{

if(arry[element]<=arry[lchild]&&arry[element]<=arry[rchild])//濡傛灉姣斿乏鍙冲瓙鏍戦兘灏忥紝瀹屾垚鏁寸悊

{

return;

}

if(arry[lchild]<=arry[rchild])//濡傛灉宸﹁竟鏈�灏�

{

swap(arry[element],arry[lchild]);//鎶婂乏闈㈢殑鎻愬埌涓婇潰

element=lchild;//寰幆鏃舵暣鐞嗗瓙鏍�

}

else//鍚﹀垯鍙抽潰鏈�灏�

{

swap(arry[element],arry[rchild]);//鍚岀悊

element=rchild;

}

lchild=element*2+1;

rchild=lchild+1;//閲嶆柊璁$畻瀛愭爲浣嶇疆

}

if(lchild

{

swap(arry[lchild],arry[element]);

}

return;

}

//鍫嗘帓搴弔ime:O(nlgn)

template

voidHeapSort(T*arry,intsize)

{

inti;

for(i=size-1;i>=0;i--)//浠庡瓙鏍戝紑濮嬫暣鐞嗘爲

{

MinHeapify(arry,size,i);

}

while(size>0)//鎷嗛櫎鏍�

{

swap(arry[size-1],arry[0]);//灏嗘牴锛堟渶灏忥級涓庢暟缁勬渶鏈氦鎹�

size--;//鏍戝ぇ灏忓噺灏�

MinHeapify(arry,size,0);//鏁寸悊鏍�

}

return;

}

Java

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publicclassHeapSort{

privatestaticint[]聽sort=newint[]{1,0,10,20,3,5,6,4,9,8,12,

17,34,11};


publicstaticvoidmain(String[]聽args){

buildMaxHeapify(sort);

heapSort(sort);

print(sort);

}


privatestaticvoidbuildMaxHeapify(int[]聽data){

//娌℃湁瀛愯妭鐐圭殑鎵嶉渶瑕佸垱寤烘渶澶у爢锛屼粠鏈�鍚庝竴涓殑鐖惰妭鐐瑰紑濮�

intstartIndex=getParentIndex(data.length-1);

//浠庡熬绔紑濮嬪垱寤烘渶澶у爢锛屾瘡娆¢兘鏄纭殑鍫�

for(inti=startIndex;i>=0;i--){

maxHeapify(data,data.length,i);

}

}


/**

*鍒涘缓鏈�澶у爢

*

*@paramdata

*@paramheapSize闇�瑕佸垱寤烘渶澶у爢鐨勫ぇ灏忥紝涓�鑸湪sort鐨勬椂鍊欑敤鍒帮紝鍥犱负鏈�澶氬�兼斁鍦ㄦ湯灏撅紝鏈熬灏变笉鍐嶅綊鍏ユ渶澶у爢浜�

*@paramindex褰撳墠闇�瑕佸垱寤烘渶澶у爢鐨勪綅缃�

*/

privatestaticvoidmaxHeapify(int[]聽data,intheapSize,intindex){

//褰撳墠鐐逛笌宸﹀彸瀛愯妭鐐规瘮杈�

intleft=getChildLeftIndex(index);

intright=getChildRightIndex(index);


intlargest=index;

if(left

largest=left;

}

if(right

largest=right;

}

//寰楀埌鏈�澶у�煎悗鍙兘闇�瑕佷氦鎹紝濡傛灉浜ゆ崲浜嗭紝鍏跺瓙鑺傜偣鍙兘灏变笉鏄渶澶у爢浜嗭紝闇�瑕侀噸鏂拌皟鏁�

if(largest!=index){

inttemp=data[index];

data[index]=data[largest];

data[largest]=temp;

maxHeapify(data,heapSize,largest);

}

}


/**

*鎺掑簭锛屾渶澶у�兼斁鍦ㄦ湯灏撅紝data铏界劧鏄渶澶у爢锛屽湪鎺掑簭鍚庡氨鎴愪簡閫掑鐨�

*

*@paramdata

*/

privatestaticvoidheapSort(int[]聽data){

//鏈熬涓庡ご浜ゆ崲锛屼氦鎹㈠悗璋冩暣鏈�澶у爢

for(inti=data.length-1;i>0;i--){

inttemp=data[0];

data[0]=data[i];

data[i]=temp;

maxHeapify(data,i,0);

}

}


/**

*鐖惰妭鐐逛綅缃�

*

*@paramcurrent

*@return

*/

privatestaticintgetParentIndex(intcurrent){

return(current-1)>>1;

}


/**

*宸﹀瓙鑺傜偣position娉ㄦ剰鎷彿锛屽姞娉曚紭鍏堢骇鏇撮珮

*

*@paramcurrent

*@return

*/

privatestaticintgetChildLeftIndex(intcurrent){

return(current<<1)+1;

}


/**

*鍙冲瓙鑺傜偣position

*

*@paramcurrent

*@return

*/

privatestaticintgetChildRightIndex(intcurrent){

return(current<<1)+2;

}


privatestaticvoidprint(int[]聽data){

intpre=-2;

for(inti=0;i

if(pre<(int)getLog(i+1)){

pre=(int)getLog(i+1);

System.out.println();

}

System.out.print(data[i]+"|");

}

}


/**

*浠�2涓哄簳鐨勫鏁�

*

*@paramparam

*@return

*/

privatestaticdoublegetLog(doubleparam){

returnMath.log(param)/Math.log(2);

}

}

Python

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#!/usr/bin/envpython

#-*-coding:utf-8-*-


defheap_sort(lst):

forstartinrange((len(lst)-2)/2,-1,-1):

sift_down(lst,start,len(lst)-1)


forendinrange(len(lst)-1,0,-1):

lst[0],lst[end]=lst[end],lst[0]

sift_down(lst,0,end-1)

returnlst


defsift_down(lst,start,end):

root=start

whileTrue:

child=2*root+1

ifchild>end:

break

ifchild+1<=end聽andlst[child]

child+=1

iflst[root]

lst[root],lst[child]=lst[child],lst[root]

root=child

else:

break


defmain():

l=[9,2,1,7,6,8,5,3,4]

heap_sort(l)


if__name__=="__main__":

main()

C#

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4

///

///鏋勫缓鍫�


///


staticvoidHeapAdjust(List聽list,intparent,intlength)


{


inttemp=list[parent];


intchild=2*parent+1;


while(child

{

if(child+1


if(temp>=list[child])

break;


list[parent]=list[child];


parent=child;


child=2*parent+1;

}


list[parent]=temp;

}


///

///鍫嗘帓搴�

///

publicstaticList聽HeapSort(List聽list,inttop)

{

List聽topNode=newList();


for(inti=list.Count/2-1;i>=0;i--)

{

HeapAdjust(list,i,list.Count);

}


for(inti=list.Count-1;i>=list.Count-top;i--)

{

inttemp=list[0];

list[0]=list[i];

list[i]=temp;


topNode.Add(temp);


HeapAdjust(list,0,i);

}

returntopNode;

}

JavaScript

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/**

*AuthorJenaszhang

*/

Array.prototype.buildMaxHeap=function(){

for(vari=Math.floor(this.length/2)-1;i>=0;i--){

this.heapAdjust(i,this.length);

}

};


Array.prototype.swap=function(i,j){

vartmp=this[i];

this[i]=this[j];

this[j]=tmp;

};


Array.prototype.heapSort=function(){

this.buildMaxHeap();

for(vari=this.length-1;i>0;i--){

this.swap(0,i);

this.heapAdjust(0,i);

}


returnthis;

};


Array.prototype.heapAdjust=function(i,j){

varlargest=i;

varleft=2*i+1;

varright=2*i+2;


if(left

largest=left;

}


if(right

largest=right;

}


if(largest!=i){

this.swap(i,largest);

this.heapAdjust(largest,j);

}

};


vara=newArray();

[].push.apply(a,[2,3,89,57,23,72,43,105]);

console.log(a.heapSort());

Pascal浠g爜

绀轰緥1锛�

const max=100000;

var

a:array[0..max] of longint;

n,i,tot,t:longint;

procedure down(i:longint);

var j,t:longint;

begin

while i<=tot shr 1 do

begin

j:=2*i;

if (j

if a[i]>a[j] then

begin

t:=a[i];

a[i]:=a[j];

a[j]:=t;

i:=j;

end

else break;

end;

end;

begin

readln(n);

for i:=1 to n do read(a[i]);

tot:=n;

for i:=n shr 1 downto 1 do down(i);

for i:=1 to n do

begin

t:=a[1]; a[1]:=a[tot]; a[tot]:=t;

dec(tot);

down(1);

end;

for i:=n downto 1 do write(a[i],' ');

end.

绀轰緥2:

const max=100000;

var

a:array[0..max] of longint;

n,i,tot,t:longint;

procedure down(i:longint);

var j,t:longint;

begin

while i<=tot shr 1 do

begin

j:=2*i;

if (j

if a[i]>a[j] then

begin

t:=a[i];

a[i]:=a[j];

a[j]:=t;

i:=j;

end

else break;

end;

end;

procedure up(i:longint);

var j,t:longint;

begin

j:=i;

while (j>1) and (a[j]

begin

t:=a[j];

a[j]:=a[j shr 1];

a[j shr 1]:=t;

j:=j shr 1;

end;

end;

begin

readln(n);

for i:=1 to n do

begin

read(a[i]);

up(i);

end;

tot:=n;

for i:=1 to n do

begin

t:=a[1]; a[1]:=a[tot]; a[tot]:=t;

dec(tot);

down(1);

end;

for i:=n downto 1 do write(a[i],' ');

end.

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鏁版嵁327689

i=0 j=3 k=6

鎺ョ潃锛屽紑濮嬬浜屾姣旇緝锛岃繖娆¤鍙樻垚鎵炬瘮k澶х殑浜嗭紝鑰屼笖瑕佷粠鍓嶅線鍚庢壘浜嗐�傞�掑姞鍙橀噺i锛屽彂鐜颁笅鏍�2鐨勬暟鎹槸绗竴涓瘮k澶х殑锛屼簬鏄敤涓嬫爣2鐨勬暟鎹�7鍜宩鎸囧悜鐨勪笅鏍�3鐨勬暟鎹殑6鍋氫氦鎹紝鏁版嵁鐘舵�佸彉鎴愪笅琛細

涓嬫爣012345

鏁版嵁326789

i=2 j=3 k=6

绉颁笂闈袱娆℃瘮杈冧负涓�涓惊鐜��

鎺ョ潃锛屽啀閫掑噺鍙橀噺j锛屼笉鏂噸澶嶈繘琛屼笂闈㈢殑寰幆姣旇緝銆�

鍦ㄦ湰渚嬩腑锛屾垜浠繘琛屼竴娆″惊鐜紝灏卞彂鐜癷鍜宩鈥滅澶粹�濅簡锛氫粬浠兘鎸囧悜浜嗕笅鏍�2銆備簬鏄紝绗竴閬嶆瘮杈冪粨鏉熴�傚緱鍒扮粨鏋滃涓嬶紝鍑℃槸k(=6)宸﹁竟鐨勬暟閮芥瘮瀹冨皬锛屽嚒鏄痥鍙宠竟鐨勬暟閮芥瘮瀹冨ぇ锛�

涓嬫爣012345

鏁版嵁326789

濡傛灉i鍜宩娌℃湁纰板ご鐨勮瘽锛屽氨閫掑姞i鎵惧ぇ鐨勶紝杩樻病鏈夛紝灏卞啀閫掑噺j鎵惧皬鐨勶紝濡傛鍙嶅锛屼笉鏂惊鐜�傛敞鎰忓垽鏂拰瀵绘壘鏄悓鏃惰繘琛岀殑銆�

鐒跺悗锛屽k涓よ竟鐨勬暟鎹紝鍐嶅垎缁勫垎鍒繘琛屼笂杩扮殑杩囩▼锛岀洿鍒颁笉鑳藉啀鍒嗙粍涓烘銆�

娉ㄦ剰锛氱涓�閬嶅揩閫熸帓搴忎笉浼氱洿鎺ュ緱鍒版渶缁堢粨鏋滐紝鍙細鎶婃瘮k澶у拰姣攌灏忕殑鏁板垎鍒発鐨勪袱杈广�備负浜嗗緱鍒版渶鍚庣粨鏋滐紝闇�瑕佸啀娆″涓嬫爣2涓よ竟鐨勬暟缁勫垎鍒墽琛屾姝ラ锛岀劧鍚庡啀鍒嗚В鏁扮粍锛岀洿鍒版暟缁勪笉鑳藉啀鍒嗚В涓烘锛堝彧鏈変竴涓暟鎹級锛屾墠鑳藉緱鍒版纭粨鏋溿��

璋冪敤鍑芥暟

鍦╟++涓彲浠ョ敤鍑芥暟qsort锛堬級鍙互鐩存帴涓�鏁扮粍杩涜鎺掑簭銆俒1]

鐢犳硶:

void qsort(void *base, int nelem, int width, int (*fcmp)(const void *,const void *));

鍙傛暟锛�1聽寰�鎺掑簭鏁扮粍棣栧湴鍧�2聽鏁扮粍涓緟鎺掑簭鍏冪礌鏁伴噺3聽鍚勫厓绱犵殑鍗犵敤绌洪棿澶у皬4聽鎸囧悜鍑芥暟鐨�鎸囬拡锛岀敤浜庣‘瀹氭帓搴忕殑椤哄簭

绀轰緥浠g爜

GO

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//聽绗竴绉嶅啓娉�

func聽quickSort(values聽[]int,聽left,聽right聽int)聽{

temp聽:=聽values[left]

p聽:=聽left

i,聽j聽:=聽left,聽right


fori聽<=聽j聽{

forj聽>=聽p聽&&聽values[j]聽>=聽temp聽{

j--

}

ifj聽>=聽p聽{

values[p]聽=聽values[j]

p聽=聽j

}


ifvalues[i]聽<=聽temp聽&&聽i聽<=聽p聽{

i++

}

ifi聽<=聽p聽{

values[p]聽=聽values[i]

p聽=聽i

}

}

values[p]聽=聽temp

ifp-left聽>聽1聽{

quickSort(values,聽left,聽p-1)

}

ifright-p聽>聽1聽{

quickSort(values,聽p+1,聽right)

}

}


func聽QuickSort(values聽[]int)聽{

iflen(values)聽<=聽1聽{

return

}

quickSort(values,聽0,聽len(values)-1)

}


//聽绗簩绉嶅啓娉�

func聽Quick2Sort(values聽[]int)聽{

iflen(values)聽<=聽1聽{

return

}

mid,聽i聽:=聽values[0],聽1

head,聽tail聽:=聽0,聽len(values)-1

forhead聽<聽tail聽{

fmt.Println(values)

ifvalues[i]聽>聽mid聽{

values[i],聽values[tail]聽=聽values[tail],聽values[i]

tail--

}聽else{

values[i],聽values[head]聽=聽values[head],聽values[i]

head++

i++

}

}

values[head]聽=聽mid

Quick2Sort(values[:head])

Quick2Sort(values[head+1:])

}

Ruby

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defquick_sort(a)聽聽

(x=a.pop)聽?聽quick_sort(a.select聽{聽|i|聽i聽<=聽x聽})聽+聽[x]聽+聽quick_sort(a.select聽{聽|i|聽i聽>聽x聽})聽:聽[]

end

Erlang璇█

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瓒呯畝鐭疄鐜帮細

q_sort([])->

[];

q_sort([H|R])->

q_sort([X||X<-R,X

q_sort([X||X<-R,X>=H]).

Haskell璇█

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q_sort聽n=casen聽of

[]->[]

(x:xs)->q_sort聽[a|a<-xs,a<=x]++[x]++q_sort聽[a|a<-xs,a>x]

C++璇█

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#include聽


usingnamespacestd;


voidQsort(inta[],聽intlow,聽inthigh)

{

if(low聽>=聽high)

{

return;

}

intfirst聽=聽low;

intlast聽=聽high;

intkey聽=聽a[first];/*鐢ㄥ瓧琛ㄧ殑绗竴涓褰曚綔涓烘灑杞�*/


while(first聽<聽last)

{

while(first聽<聽last聽&&聽a[last]聽>=聽key)

{

--last;

}


a[first]聽=聽a[last];/*灏嗘瘮绗竴涓皬鐨勭Щ鍒颁綆绔�*/


while(first聽<聽last聽&&聽a[first]聽<=聽key)

{

++first;

}


a[last]聽=聽a[first];聽聽聽聽

/*灏嗘瘮绗竴涓ぇ鐨勭Щ鍒伴珮绔�*/

}

a[first]聽=聽key;/*鏋㈣酱璁板綍鍒颁綅*/

Qsort(a,聽low,聽first-1);

Qsort(a,聽first+1,聽high);

}

intmain()

{

inta[]聽=聽{57,聽68,聽59,聽52,聽72,聽28,聽96,聽33,聽24};


Qsort(a,聽0,聽sizeof(a)聽/聽sizeof(a[0])聽-聽1);/*杩欓噷鍘熸枃绗笁涓弬鏁拌鍑�1鍚﹀垯鍐呭瓨瓒婄晫*/


for(inti聽=聽0;聽i聽<聽sizeof(a)聽/聽sizeof(a[0]);聽i++)

{

cout聽<<聽a[i]聽<<聽"";

}


return0;

}/*鍙傝�冩暟鎹粨鏋刾274(娓呭崕澶у鍑虹増绀撅紝涓ヨ敋鏁�)*/

C璇█鐗堟湰

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voidsort(int*a,聽intleft,聽intright)

{

if(left聽>=聽right)/*濡傛灉宸﹁竟绱㈠紩澶т簬鎴栬�呯瓑浜庡彸杈圭殑绱㈠紩灏变唬琛ㄥ凡缁忔暣鐞嗗畬鎴愪竴涓粍浜�*/

{

return;

}

inti聽=聽left;

intj聽=聽right;

intkey聽=聽a[left];


while(i聽<聽j)聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽/*鎺у埗鍦ㄥ綋缁勫唴瀵绘壘涓�閬�*/

{

while(i聽<聽j聽&&聽key聽<=聽a[j])

/*鑰屽鎵剧粨鏉熺殑鏉′欢灏辨槸锛�1锛屾壘鍒颁竴涓皬浜庢垨鑰呭ぇ浜巏ey鐨勬暟锛堝ぇ浜庢垨灏忎簬鍙栧喅浜庝綘鎯冲崌

搴忚繕鏄檷搴忥級2锛屾病鏈夌鍚堟潯浠�1鐨勶紝骞朵笖i涓巎鐨勫ぇ灏忔病鏈夊弽杞�*/

{

j--;/*鍚戝墠瀵绘壘*/

}


a[i]聽=聽a[j];

/*鎵惧埌涓�涓繖鏍风殑鏁板悗灏辨妸瀹冭祴缁欏墠闈㈢殑琚嬁璧扮殑i鐨勫�硷紙濡傛灉绗竴娆″惊鐜笖key鏄�

a[left]锛岄偅涔堝氨鏄粰key锛�*/


while(i聽<聽j聽&&聽key聽>=聽a[i])

/*杩欐槸i鍦ㄥ綋缁勫唴鍚戝墠瀵绘壘锛屽悓涓婏紝涓嶈繃娉ㄦ剰涓巏ey鐨勫ぇ灏忓叧绯诲仠姝㈠惊鐜拰涓婇潰鐩稿弽锛�

鍥犱负鎺掑簭鎬濇兂鏄妸鏁板線涓よ竟鎵旓紝鎵�浠ュ乏鍙充袱杈圭殑鏁板ぇ灏忎笌key鐨勫叧绯荤浉鍙�*/

{

i++;

}


a[j]聽=聽a[i];

}


a[i]聽=聽key;/*褰撳湪褰撶粍鍐呮壘瀹屼竴閬嶄互鍚庡氨鎶婁腑闂存暟key鍥炲綊*/

sort(a,聽left,聽i聽-聽1);/*鏈�鍚庣敤鍚屾牱鐨勬柟寮忓鍒嗗嚭鏉ョ殑宸﹁竟鐨勫皬缁勮繘琛屽悓涓婄殑鍋氭硶*/

sort(a,聽i聽+聽1,聽right);/*鐢ㄥ悓鏍风殑鏂瑰紡瀵瑰垎鍑烘潵鐨勫彸杈圭殑灏忕粍杩涜鍚屼笂鐨勫仛娉�*/

/*褰撶劧鏈�鍚庡彲鑳戒細鍑虹幇寰堝鍒嗗乏鍙筹紝鐩村埌姣忎竴缁勭殑i聽=聽j聽涓烘*/

}

JavaScript

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functionquickSort(array){

functionsort(prev,聽numsize){

varnonius聽=聽prev;

varj聽=聽numsize聽-1;

varflag聽=聽array[prev];

if((numsize聽-聽prev)聽>聽1)聽{

while(nonius聽<聽j){

for(;聽nonius聽<聽j;聽j--){

if(array[j]聽<聽flag)聽{

array[nonius++]聽=聽array[j];銆�//a[i]聽=聽a[j];聽i聽+=聽1;

break;

};

}

for(聽;聽nonius聽<聽j;聽nonius++){

if(array[nonius]聽>聽flag){

array[j--]聽=聽array[nonius];

break;

}

}

}

array[nonius]聽=聽flag;

sort(0,聽nonius);

sort(nonius聽+聽1,聽numsize);

}

}

sort(0,聽array.length);

returnarray;

}

Java

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class銆�Quick

{

publicvoid銆�sort(int銆�arr[],int銆�low,int銆�high)

銆�{

int銆�l=low;

int銆�h=high;

int銆�povit=arr[low];


while(l

銆�{

while(l=povit)

銆�h--;

if(l

int銆�temp=arr[h];

銆�arr[h]=arr[l];

銆�arr[l]=temp;

銆�l++;

銆�}


while(l

銆�l++;


if(l

int銆�temp=arr[h];

銆�arr[h]=arr[l];

銆�arr[l]=temp;

銆�h--;

銆�}

銆�}

銆�print(arr);

銆�System.out.print("l="+(l+1)+"h="+(h+1)+"povit="+povit+"\n");

if(l>low)sort(arr,low,l-1);

if(h

銆�}

}



/*//////////////////////////鏂瑰紡浜�////////////////////////////////*/

鏇撮珮鏁堢偣鐨勪唬鐮侊細

public>

T[]quickSort(T[]targetArr,intstart,intend)

{

inti=start+1,j=end;

Tkey=targetArr[start];

SortUtilsUtil=newSortUtil();


if(start>=end)return(targetArr);



/*浠巌++鍜宩--涓や釜鏂瑰悜鎼滅储涓嶆弧瓒虫潯浠剁殑鍊煎苟浜ゆ崲

*

*鏉′欢涓猴細i++鏂瑰悜灏忎簬key锛宩--鏂瑰悜澶т簬key

*/

while(true)

{

while(targetArr[j].compareTo(key)>0)j--;

while(targetArr[i].compareTo(key)<0&&i

if(i>=j)break;

sUtil.swap(targetArr,i,j);

if(targetArr[i]==key)

{

j--;

}else{

i++;

}

}


/*鍏抽敭鏁版嵁鏀惧埌鈥樹腑闂粹��*/

sUtil.swap(targetArr,start,j);


if(start

{

this.quickSort(targetArr,start,i-1);

}

if(j+1

{

this.quickSort(targetArr,j+1,end);

}


returntargetArr;

}



/*//////////////鏂瑰紡涓夛細鍑忓皯浜ゆ崲娆℃暟锛屾彁楂樻晥鐜�/////////////////////*/

private>

voidquickSort(T[]targetArr,intstart,intend)

{

inti=start,j=end;

Tkey=targetArr[start];


while(i

{

/*鎸塲--鏂瑰悜閬嶅巻鐩爣鏁扮粍锛岀洿鍒版瘮key灏忕殑鍊间负姝�*/

while(j>i&&targetArr[j].compareTo(key)>=0)

{

j--;

}

if(i

{

/*targetArr[i]宸茬粡淇濆瓨鍦╧ey涓紝鍙皢鍚庨潰鐨勬暟濉叆*/

targetArr[i]=targetArr[j];

i++;

}

/*鎸塱++鏂瑰悜閬嶅巻鐩爣鏁扮粍锛岀洿鍒版瘮key澶х殑鍊间负姝�*/

while(i

/*姝ゅ涓�瀹氳灏忎簬绛変簬闆讹紝鍋囪鏁扮粍涔嬪唴鏈変竴浜夸釜1锛�0浜ゆ浛鍑虹幇鐨勮瘽锛岃�宬ey鐨勫�煎張鎭板阀鏄�1鐨勮瘽锛岄偅涔堣繖涓皬浜庣瓑浜庣殑浣滅敤灏变細浣夸笅闈㈢殑if璇彞灏戞墽琛屼竴浜挎銆�*/

{

i++;

}

if(i

{

/*targetArr[j]宸蹭繚瀛樺湪targetArr[i]涓紝鍙皢鍓嶉潰鐨勫�煎~鍏�*/

targetArr[j]=targetArr[i];

j--;

}

}

/*姝ゆ椂i==j*/

targetArr[i]=key;


/*閫掑綊璋冪敤锛屾妸key鍓嶉潰鐨勫畬鎴愭帓搴�*/

this.quickSort(targetArr,start,i-1);



/*閫掑綊璋冪敤锛屾妸key鍚庨潰鐨勫畬鎴愭帓搴�*/

this.quickSort(targetArr,j+1,end);


}

C#

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578

usingSystem;聽

usingSystem.Collections.Generic;聽

usingSystem.Linq;聽

usingSystem.Text;

namespacetest

{

classQuickSort

{

staticvoidMain(string[]聽args)

{

int[]聽array聽=聽{聽49,聽38,聽65,聽97,聽76,聽13,聽27聽};

sort(array,聽0,聽array.Length聽-聽1);

Console.ReadLine();

}

/**涓�娆℃帓搴忓崟鍏冿紝瀹屾垚姝ゆ柟娉曪紝key宸﹁竟閮芥瘮key灏忥紝key鍙宠竟閮芥瘮key澶с��



**@param聽array鎺掑簭鏁扮粍聽



**@param聽low鎺掑簭璧峰浣嶇疆聽



**@param聽high鎺掑簭缁撴潫浣嶇疆



**@return鍗曞厓鎺掑簭鍚庣殑鏁扮粍聽*/

privatestaticintsortUnit(int[]聽array,聽intlow,聽inthigh)

{

intkey聽=聽array[low];

while(low聽<聽high)

{

/*浠庡悗鍚戝墠鎼滅储姣攌ey灏忕殑鍊�*/

while(array[high]聽>=聽key聽&&聽high聽>聽low)

--high;聽

/*姣攌ey灏忕殑鏀惧乏杈�*/

array[low]聽=聽array[high];聽聽聽

/*浠庡墠鍚戝悗鎼滅储姣攌ey澶х殑鍊硷紝姣攌ey澶х殑鏀惧彸杈�*/

while(array[low]聽<=聽key聽&&聽high聽>聽low)

++low;聽

/*姣攌ey澶х殑鏀惧彸杈�*/

array[high]聽=聽array[low];

}

/*宸﹁竟閮芥瘮key灏忥紝鍙宠竟閮芥瘮key澶с��//灏唊ey鏀惧湪娓告爣褰撳墠浣嶇疆銆�//姝ゆ椂low绛変簬high聽*/

array[low]聽=聽key;

foreach(inti聽inarray)

{

Console.Write("{0}\t",聽i);

}

Console.WriteLine();

returnhigh;

}聽聽聽聽

/**蹇�熸帓搴徛�

*@paramarry聽

*@return聽*/

publicstaticvoidsort(int[]聽array,聽intlow,聽inthigh)

{

if(low聽>=聽high)

return;聽

/*瀹屾垚涓�娆″崟鍏冩帓搴�*/

intindex聽=聽sortUnit(array,聽low,聽high);聽

/*瀵瑰乏杈瑰崟鍏冭繘琛屾帓搴�*/

sort(array,聽low,聽index聽-聽1);

/*瀵瑰彸杈瑰崟鍏冭繘琛屾帓搴�*/

sort(array,聽index聽+聽1,聽high);

}

}

}聽

杩愯缁撴灉锛�27 38 13 49 76 97 65

13 27 38 49 76 97 6513 27 38 49 65 76 97

蹇�熸帓搴忓氨鏄�閫掑綊璋冪敤姝よ繃绋嬧�斺�斿湪浠�49涓轰腑鐐瑰垎鍓茶繖涓暟鎹簭鍒楋紝鍒嗗埆瀵瑰墠闈竴閮ㄥ垎鍜屽悗闈竴閮ㄥ垎杩涜绫讳技鐨勫揩閫熸帓搴忥紝浠庤�屽畬鎴愬叏閮ㄦ暟鎹簭鍒楃殑蹇�熸帓搴忥紝鏈�鍚庢妸姝ゆ暟鎹簭鍒楀彉鎴愪竴涓湁搴忕殑搴忓垪锛屾牴鎹繖绉嶆�濇兂瀵逛簬涓婅堪鏁扮粍A鐨勫揩閫熸帓搴忕殑鍏ㄨ繃绋嬪鍥�6鎵�绀猴細

鍒濆鐘舵�伮爗49 38 65 97 76 13 27}聽杩涜涓�娆″揩閫熸帓搴忎箣鍚庡垝鍒嗕负聽{27 38 13} 49 {76 97 65}聽鍒嗗埆瀵瑰墠鍚庝袱閮ㄥ垎杩涜蹇�熸帓搴弡27 38 13}聽缁忕涓夋鍜岀鍥涙浜ゆ崲鍚庡彉鎴惵爗13 27 38}聽瀹屾垚鎺掑簭銆倇76 97 65}聽缁忕涓夋鍜岀鍥涙浜ゆ崲鍚庡彉鎴惵爗65 76 97}聽瀹屾垚鎺掑簭銆傚浘绀�

F#

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let聽rec聽qsort聽=

function

[]聽->聽[]

|x::xs聽->

qsort聽[fori聽in聽xs聽doifi聽<聽x聽then聽yieldi]@

x::qsort聽[fori聽in聽xs聽doifi聽>=x聽then聽yieldi]

PHP

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functionquickSort(&$arr){

if(count($arr)>1){

$k=$arr[0];

$x=array();

$y=array();

$_size=count($arr);

for($i=1;$i<$_size;$i++){

if($arr[$i]<=$k){

$x[]=$arr[$i];

}elseif($arr[$i]>$k){

$y[]=$arr[$i];

}

}

$x=quickSort($x);

$y=quickSort($y);

returnarray_merge($x,array($k),$y);

}else{

return$arr;

}

}

?>

Pascal

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杩欓噷鏄畬鍏ㄧ▼搴忥紝杩囩▼閮ㄥ垎涓哄揩鎺�

programqsort;

varn,p:integer;

a:array[0..100000]聽ofinteger;

procedureqs(l,r:integer);//鍋囪琚帓搴忕殑鏁扮粍鏄痑,涓斿揩鎺掑悗鎸夊崌搴忔帓鍒楋級

vari,j,m,t:integer;

begin

i:=l;

j:=r;//(l锛坙eft锛�,r锛坮ight锛夎〃绀哄揩鎺掔殑宸﹀彸鍖洪棿)

m:=a[(l+r)div2];//娉ㄦ剰锛氭湰鍙ヤ笉鑳藉啓鎴愶細m:=(l+r)div2;

repeat

whilea[i]

whilea[j]>m聽dodec(j);//鑻ユ槸闄嶅簭鎶�'<'涓庘��>'浜掓崲;

ifi<=j聽then

begin

t:=a[i];

a[i]:=a[j];

a[j]:=t;

inc(i);

dec(j);

end;

untili>j;

ifl

ifi

end;

begin

readln(n);//鏈塶涓暟鎹澶勭悊

forp:=1ton聽doread(a[p]);//杈撳叆鏁版嵁

qs(1,n);

forp:=1ton聽dowrite(a[p],'');//杈撳嚭蹇帓鍚庣殑鏁版嵁

end.

鎴栬��

procedurequickSort(vara:arrayofinteger;l,r:Integer);

vari,j,x:integer;

begin

ifl>=r聽thenexit;

i:=l;

j:=r;

x:=a[i];

whilei<=j聽do

begin

while(ix)聽dodec(j);

ifi

begin

a[i]:=a[j];

inc(i);

end;

while(i

ifi

begin

a[j]:=a[i];

dec(j);

end;

a[i]:=x;

quicksort(a,l,i-1);

quicksort(a,i+1,r);

end;

end;

Python閫掑綊

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#quick聽sort

defquickSort(L,聽low,聽high):

i聽=聽low聽

j聽=聽high

ifi聽>=聽j:

returnL

key聽=聽L[i]

whilei聽<聽j:

whilei聽<聽j聽andL[j]聽>=聽key:

j聽=聽j-1

L[i]聽=聽L[j]

whilei聽<聽j聽andL[i]聽<=聽key:聽聽聽聽

i聽=聽i+1

L[j]聽=聽L[i]

L[i]聽=聽key聽

quickSort(L,聽low,聽i-1)

quickSort(L,聽j+1,聽high)

returnL

浼樺寲

涓夊钩鍧囧垎鍖烘硶

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骞惰鐨勫揩閫熸帓搴�

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鍙樼

闅忔満鍖栧揩鎺�

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骞宠 蹇帓

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澶栭儴蹇帓

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涓夎矾鍩烘暟蹇帓

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浼唬鐮�

闈為殢鏈�

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闅忔満

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鎬ц兘鍒嗘瀽

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鏈�鍧忔儏鍐�

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鎴戜滑浠庣洿瑙変笂鍙互鍒ゆ柇鍑烘渶鍧忔儏鍐靛彂鐢熷湪姣忔鍒掑垎杩囩▼浜х敓鐨勪袱涓尯闂村垎鍒寘鍚玭-1涓厓绱犲拰1涓厓绱犵殑鏃跺�欙紙璁捐緭鍏ョ殑琛ㄦ湁n涓厓绱狅級銆備笅闈㈡垜浠殏鏃惰涓鸿鐚滄祴姝g‘锛屽湪鍚庢枃鎴戜滑鍐嶈缁嗚瘉鏄庤鐚滄祴銆�

瀵逛簬鏈塶涓厓绱犵殑琛↙[p..r]锛岀敱浜庡嚱鏁癙artition鐨勮绠楁椂闂翠负胃锛坣锛夛紝鎵�浠ュ揩閫熸帓搴忓湪搴忓潖鎯呭喌涓嬬殑澶嶆潅鎬ф湁閫掑綊寮忓涓嬶細

T(1)=胃(1),T(n)=T(n-1)+T(1)+胃(n) (1)

鐢ㄨ凯浠f硶鍙互瑙e嚭涓婂紡鐨勮В涓篢(n)=胃锛坣2锛夈��

杩欎釜鏈�鍧忔儏鍐佃繍琛屾椂闂翠笌鎻掑叆鎺掑簭鏄竴鏍风殑銆�

涓嬮潰鎴戜滑鏉ヨ瘉鏄庤繖绉嶆瘡娆″垝鍒嗚繃绋嬩骇鐢熺殑涓や釜鍖洪棿鍒嗗埆鍖呭惈n-1涓厓绱犲拰1涓厓绱犵殑鎯呭喌灏辨槸鏈�鍧忔儏鍐点��

璁綯(n锛夋槸杩囩▼Quick_Sort浣滅敤浜庤妯′负n鐨勮緭鍏ヤ笂鐨勬渶鍧忔儏鍐电殑鏃堕棿锛屽垯

T(n)=max(T(q)+T(n-q))+胃锛坣)锛屽叾涓�1鈮鈮-1 (2)

鎴戜滑鍋囪瀵逛簬浠讳綍k

灏嗗綊绾冲亣璁句唬鍏ワ紙2锛夛紝寰楀埌锛�

T(n锛夆墹max(cq2+c(n-q)2)+胃锛坣)=c*max(q2+(n-q)2)+胃锛坣)

鍥犱负鍦╗1,n-1]涓妐2+(n-q)2鍏充簬q閫掑噺锛屾墍浠ュ綋q=1鏃秖2+(n-q)2鏈夋渶澶у�糿2-2(n-1锛夈�備簬鏄湁锛�

T(n锛夆墹cn2-2c(n-1)+胃锛坣锛夆墹cn2

鍙c瓒冲澶э紝涓婇潰鐨勭浜屼釜灏忎簬绛変簬鍙峰氨鍙互鎴愮珛銆備簬鏄浜庢墍鏈夌殑n閮芥湁T(n锛夆墹cn銆�

杩欐牱锛�鎺掑簭绠楁硶鐨勬渶鍧忔儏鍐佃繍琛屾椂闂翠负胃锛坣2锛夛紝涓旀渶鍧忔儏鍐靛彂鐢熷湪姣忔鍒掑垎杩囩▼浜х敓鐨勪袱涓尯闂村垎鍒寘鍚玭-1涓厓绱犲拰1涓厓绱犵殑鏃跺�欍��

鏃堕棿澶嶆潅搴�涓簅锛坣2锛夈��

鏈�濂芥儏鍐�

濡傛灉姣忔鍒掑垎杩囩▼浜х敓鐨勫尯闂村ぇ灏忛兘涓簄/2锛屽垯蹇�熸帓搴忔硶杩愯灏卞揩寰楀浜嗐�傝繖鏃舵湁锛�

T(n)=2T(n/2)+胃锛坣),T(1)=胃锛�1) (3)

瑙e緱锛歍(n)=胃锛坣logn)

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T(n)=T(n/10)+T(9n/10)+胃锛坣),T(1)=胃锛�1) (4)

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涓�鑸潵璇达紝褰撲竴涓畻娉曞彲鎸夊鏉¤矾瀛愬仛涓嬪幓锛屼絾鍙堝緢闅惧喅瀹氬摢涓�鏉′繚璇佹槸濂界殑閫夋嫨鏃讹紝闅忔満鍖栫瓥鐣ユ槸寰堟湁鐢ㄧ殑銆傚鏋滃ぇ閮ㄥ垎閫夋嫨閮芥槸濂界殑锛屽垯闅忔満鍦伴�変竴涓氨琛屼簡銆傞�氬父锛屼竴涓畻娉曞湪鍏舵墽琛岃繃绋嬩腑瑕佸仛寰堝閫夋嫨銆傚鏋滀竴涓ソ鐨勯�夋嫨鐨勮幏鐩婂ぇ浜庡潖鐨勯�夋嫨鐨勪唬浠凤紝閭d箞闅忔満鍦板仛涓�涓�夋嫨灏辫兘寰楀埌涓�涓緢鏈夋晥鐨勭畻娉曘�傛垜浠湪鍓嶆枃宸茬粡浜嗚В鍒帮紝瀵瑰揩閫熸帓搴忔潵璇达紝涓�缁勫ソ鍧忕浉鏉傜殑鍒掑垎浠嶈兘浜х敓寰堝ソ鐨勮繍琛屾椂闂绰燵2]聽銆傚洜姝ゆ垜浠彲浠ヨ涓鸿绠楁硶鐨勯殢鏈哄寲鐗堟湰涔熻兘鍏锋湁杈冨ソ鐨勬�ф�併��

鍙傝�冭祫鏂�

路聽1.寮犲痉瀵岋紟绠楁硶璁捐涓庡垎鏋愶細鍥介槻宸ヤ笟鍑虹増绀撅紝2009-8-1

路聽2.绠楁硶瀵艰(Introduction to Algorithms Second Edition)涓枃鐗� 鏈烘宸ヤ笟鍑虹増绀韭�2010

鏈�鐭矾寰�

鐢ㄤ簬璁$畻涓�涓妭鐐瑰埌鍏朵粬鎵�鏈夎妭鐐圭殑鏈�鐭矾寰勩�備富瑕佺壒鐐规槸浠ヨ捣濮嬬偣涓轰腑蹇冨悜澶栧眰灞傛墿灞曪紝鐩村埌鎵╁睍鍒扮粓鐐逛负姝€��Dijkstra绠楁硶鑳藉緱鍑烘渶鐭矾寰勭殑鏈�浼樿В锛屼絾鐢变簬瀹�閬嶅巻璁$畻鐨勮妭鐐瑰緢澶氾紝鎵�浠ユ晥鐜囦綆銆�

涓枃鍚�

鏈�鐭矾寰�

澶栨枃鍚�

shortest聽path

鎬ц川

涓�绫荤粡鍏哥畻娉曢棶棰�

瑙e喅鎬濊矾

鐢卞凡鐭ョ偣/杈瑰悜澶栨墿灞�

瑙e喅鏂规硶

SPFA绠楁硶銆�Dijkstra绠楁硶绛�

鐩綍

00001.聽1聽姒傝堪

00002.聽2聽瑙e喅鏂规硶

00003.聽鈻�缁艰堪

00004.聽3聽Dijkstra绠楁硶

00005.聽鈻�C++浠g爜

姒傝堪

鏈�鐭矾寰勯棶棰樻槸鍥捐鐮旂┒涓殑涓�涓粡鍏哥畻娉曢棶棰橈紝聽鏃ㄥ湪瀵绘壘鍥撅紙鐢辩粨鐐瑰拰璺緞缁勬垚鐨勶級涓袱缁撶偣涔嬮棿鐨勬渶鐭矾寰勩�偮犵畻娉曞叿浣撶殑褰㈠紡鍖呮嫭锛�

纭畾璧风偣鐨勬渶鐭矾寰勯棶棰樎�-聽鍗冲凡鐭ヨ捣濮嬬粨鐐癸紝姹傛渶鐭矾寰勭殑闂銆俒1]

纭畾缁堢偣鐨勬渶鐭矾寰勯棶棰樎�-聽涓庣‘瀹氳捣鐐圭殑闂鐩稿弽锛岃闂鏄凡鐭ョ粓缁撶粨鐐癸紝姹傛渶鐭矾寰勭殑闂銆傚湪鏃犲悜鍥句腑璇ラ棶棰樹笌纭畾璧风偣鐨勯棶棰樺畬鍏ㄧ瓑鍚岋紝鍦�鏈夊悜鍥�涓闂绛夊悓浜庢妸鎵�鏈夎矾寰勬柟鍚戝弽杞殑纭畾璧风偣鐨勯棶棰樸��

纭畾璧风偣缁堢偣鐨勬渶鐭矾寰勯棶棰樎�-聽鍗冲凡鐭ヨ捣鐐瑰拰缁堢偣锛屾眰涓ょ粨鐐逛箣闂寸殑鏈�鐭矾寰勩��

鍏ㄥ眬鏈�鐭矾寰勯棶棰樎�-聽姹傚浘涓墍鏈夌殑鏈�鐭矾寰勩��

瑙e喅鏂规硶

缁艰堪

鐢ㄤ簬瑙e喅鏈�鐭矾寰勯棶棰樼殑绠楁硶琚О鍋氣�滄渶鐭矾寰勭畻娉曗�濓紝 鏈夋椂琚畝绉颁綔鈥滆矾寰勭畻娉曗�濄�� 鏈�甯哥敤鐨勮矾寰勭畻娉曟湁锛�

Dijkstra绠楁硶

SPFA绠楁硶\Bellman-Ford绠楁硶

Floyd绠楁硶\Floyd-Warshall绠楁硶

Johnson绠楁硶

A*绠楁硶

鎵�璋�鍗曟簮鏈�鐭矾寰�闂鏄寚锛氬凡鐭ュ浘G=锛圴锛孍锛夛紝鎴戜滑甯屾湜鎵惧嚭浠庢煇缁欏畾鐨勬簮缁撶偣S鈭圴鍒癡涓殑姣忎釜缁撶偣鐨勬渶鐭矾寰勩�偮燵1]聽

棣栧厛锛屾垜浠彲浠ュ彂鐜版湁杩欐牱涓�涓簨瀹烇細濡傛灉P鏄疓涓粠vs鍒皏j鐨勬渶鐭矾锛寁i鏄疨涓殑涓�涓偣锛岄偅涔堬紝浠巚s娌縋鍒皏i鐨勮矾鏄粠vs鍒皏i鐨勬渶鐭矾銆�

Dijkstra绠楁硶

Dijkstra绠楁硶锛�杩澃鏂壒鎷�锛夋槸鍏稿瀷鐨勬渶鐭矾寰�璺敱绠楁硶锛岀敤浜庤绠椾竴涓妭鐐瑰埌鍏朵粬鎵�鏈夎妭鐐圭殑鏈�鐭矾寰勩�備富瑕佺壒鐐规槸浠ヨ捣濮嬬偣涓轰腑蹇冨悜澶栧眰灞傛墿灞曪紝鐩村埌鎵╁睍鍒扮粓鐐逛负姝€��Dijkstra绠楁硶鑳藉緱鍑烘渶鐭矾寰勭殑鏈�浼樿В锛屼絾鐢变簬瀹冮亶鍘嗚绠楃殑鑺傜偣寰堝锛屾墍浠ユ晥鐜囦綆銆傚彲浠ョ敤鍫嗕紭鍖栥��

Dijkstra绠楁硶鏄緢鏈変唬琛ㄦ�х殑鏈�鐭矾绠楁硶锛屽湪寰堝涓撲笟璇剧▼涓兘浣滀负鍩烘湰鍐呭鏈夎缁嗙殑浠嬬粛锛屽鏁版嵁缁撴瀯锛屽浘璁猴紝杩愮瀛�绛夌瓑銆�

Dijkstra涓�鑸殑琛ㄨ堪閫氬父鏈変袱绉嶆柟寮忥紝涓�绉嶇敤姘镐箙鍜屼复鏃舵爣鍙锋柟寮忥紝涓�绉嶆槸鐢∣PEN, CLOSE琛ㄦ柟寮忥紝Drew涓轰簡鍜屼笅闈㈣浠嬬粛鐨劼燗*聽绠楁硶鍜屄燚*聽绠楁硶琛ㄨ堪涓�鑷达紝杩欓噷鍧囬噰鐢∣PEN,CLOSE琛ㄧ殑鏂瑰紡銆�

鍏堕噰鐢ㄧ殑鏄椽蹇冩硶鐨�绠楁硶绛栫暐

澶ф杩囩▼锛�

鍒涘缓涓や釜琛紝OPEN, CLOSE銆�

OPEN琛ㄤ繚瀛樻墍鏈夊凡鐢熸垚鑰屾湭鑰冨療鐨勮妭鐐癸紝CLOSED琛ㄤ腑璁板綍宸茶闂繃鐨勮妭鐐广��

1锛� 璁块棶璺綉涓窛绂昏捣濮嬬偣鏈�杩戜笖娌℃湁琚鏌ヨ繃鐨勭偣锛屾妸杩欎釜鐐规斁鍏PEN缁勪腑绛夊緟妫�鏌ャ��

2锛� 浠嶰PEN琛ㄤ腑鎵惧嚭璺濊捣濮嬬偣鏈�杩戠殑鐐癸紝鎵惧嚭杩欎釜鐐圭殑鎵�鏈夊瓙鑺傜偣锛屾妸杩欎釜鐐规斁鍒癈LOSE琛ㄤ腑銆�

3锛� 閬嶅巻鑰冨療杩欎釜鐐圭殑瀛愯妭鐐广�傛眰鍑鸿繖浜涘瓙鑺傜偣璺濊捣濮嬬偣鐨勮窛绂诲�硷紝鏀惧瓙鑺傜偣鍒癘PEN琛ㄤ腑銆�

4锛� 閲嶅绗�2鍜岀3姝�,鐩村埌OPEN琛ㄤ负绌猴紝鎴栨壘鍒扮洰鏍囩偣銆�

C++浠g爜

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#include

#include

usingnamespacestd;

voiddijkstra(constint&beg,//鍑哄彂鐐�

constvector聽>聽&adjmap,//閭绘帴鐭╅樀锛岄�氳繃浼犲紩鐢ㄩ伩鍏嶆嫹璐�

vector聽&dist,//鍑哄彂鐐瑰埌鍚勭偣鐨勬渶鐭矾寰勯暱搴�

vector聽&path)//璺緞涓婂埌杈捐鐐圭殑鍓嶄竴涓偣

//璐熻竟琚浣滀笉鑱旈��

//绂忓埄锛氳繖涓嚱鏁版病鏈夌敤浠讳綍鍏ㄥ眬閲忥紝鍙互鐩存帴澶嶅埗锛�

{

constint&NODE=adjmap.size();//鐢ㄩ偦鎺ョ煩闃电殑澶у皬浼犻�掗《鐐逛釜鏁帮紝鍑忓皯鍙傛暟浼犻��

dist.assign(NODE,-1);//鍒濆鍖栬窛绂讳负鏈煡

path.assign(NODE,-1);//鍒濆鍖栬矾寰勪负鏈煡

vector聽flag(NODE,0);//鏍囧織鏁扮粍锛屽垽鏂槸鍚﹀鐞嗚繃

dist[beg]=0;//鍑哄彂鐐瑰埌鑷韩璺緞闀垮害涓�0

while(1)

{

intv=-1;//鍒濆鍖栦负鏈煡

for(inti=0;聽i!=NODE;聽++i)

if(!flag[i]&&dist[i]>=0)//瀵绘壘鏈澶勭悊杩囦笖

if(v<0||dist[i]

v=i;

if(v<0)return;//鎵�鏈夎仈閫氱殑鐐归兘琚鐞嗚繃

flag[v]=1;//鏍囪

for(inti=0;聽i!=NODE;聽++i)

if(adjmap[v][i]>=0)//鏈夎仈閫氳矾寰勪笖

if(dist[i]<0||dist[v]+adjmap[v][i]

{

dist[i]=dist[v]+adjmap[v][i];//鏇存柊

path[i]=v;//璁板綍璺緞

}

}

}

intmain()

{

intn_num,e_num,beg;//鍚箟瑙佷笅

cout<<"杈撳叆鐐规暟銆佽竟鏁般�佸嚭鍙戠偣锛�";

cin>>n_num>>e_num>>beg;

vector聽>聽adjmap(n_num,vector(n_num,-1));//榛樿鍒濆鍖栭偦鎺ョ煩闃�

for(inti=0,p,q;聽i!=e_num;聽++i)

{

cout<<"杈撳叆绗�"<

cin>>p>>q;

cin>>adjmap[p][q];

}

vector聽dist,path;//鐢ㄤ簬鎺ユ敹鏈�鐭矾寰勯暱搴﹀強璺緞鍚勭偣

dijkstra(beg,adjmap,dist,path);

for(inti=0;聽i!=n_num;聽++i)

{

cout<

for(intw=i;聽path[w]>=0;聽w=path[w])

cout<

cout<

}

}

鍙傝�冭祫鏂�

路聽1.璋㈠笇浠併�侀檲楦c�佸紶鍏村厓锛庤绠楁満缃戠粶锛庡寳浜細鐢靛瓙宸ヤ笟鍑虹増绀撅紝1994.10

璇嶆潯鏍囩锛�

绉戝鐧剧淇℃伅绉戝鍒嗙被聽锛屄犵瀛�

璐濆彾鏂垎绫�

聽缂栬緫

鏈瘝鏉$敱鈥滅鏅腑鍥解�濈櫨绉戠瀛﹁瘝鏉$紪鍐欎笌搴旂敤宸ヤ綔椤圭洰瀹℃牳 銆�

璐濆彾鏂垎绫绘妧鏈湪浼楀鍒嗙被鎶�鏈腑鍗犳湁閲嶈鍦颁綅锛屼篃灞炰簬缁熻瀛�鍒嗙被鐨勮寖鐣达紝鏄竴绉嶉潪瑙勫垯鐨勫垎绫绘柟娉曪紝璐濆彾鏂垎绫绘妧鏈�氳繃瀵瑰凡鍒嗙被鐨勬牱鏈瓙闆嗚繘琛岃缁冿紝瀛︿範褰掔撼鍑哄垎绫诲嚱鏁�(瀵圭鏁e彉閲忕殑棰勬祴绉颁綔鍒嗙被锛屽杩炵画鍙橀噺鐨勫垎绫荤О涓�鍥炲綊)锛屽埄鐢ㄨ缁冨緱鍒扮殑鍒嗙被鍣ㄥ疄鐜板鏈垎绫绘暟鎹殑鍒嗙被銆傞�氳繃瀵规瘮鍒嗘瀽涓嶅悓鐨勫垎绫荤畻娉曪紝鍙戠幇鏈寸礌璐濆彾鏂垎绫荤畻娉�(Naive Bayes)锛屼竴绉嶇畝鍗曠殑璐濆彾鏂垎绫荤畻娉曪紝鍏跺簲鐢ㄦ晥鏋滄瘮绁炵粡缃戠粶鍒嗙被绠楁硶鍜屽垽瀹氭爲鍒嗙被绠楁硶杩樿濂斤紝鐗瑰埆鏄緟鍒嗙被鏁版嵁閲忛潪甯稿ぇ鏃讹紝璐濆彾鏂垎绫绘柟娉曠浉杈冨叾浠栧垎绫荤畻娉曞叿鏈夐珮鍑嗙‘鐜嘯1]聽銆�

涓枃鍚�

璐濆彾鏂垎绫�

澶栨枃鍚�

Bayesian聽classification

瀛︾

缁熻瀛︼紝骞挎硾搴旂敤浜庡叾浠栧绉�

灞炴��

鍒嗙被鏂规硶

鐗圭偣

鐢ㄦ鐜囨潵琛ㄧず鎵�鏈夊舰寮忕殑涓嶇‘瀹氭��

鐩綍

00001.聽1聽鑳屾櫙浠嬬粛

00002.聽2聽璐濆彾鏂垎绫荤殑鍘熺悊

00003.聽3聽璐濆彾鏂垎绫荤壒鐐�

鑳屾櫙浠嬬粛

缂栬緫

鏁版嵁鍒嗙被(Classification)鍦ㄥ晢涓氬簲鐢ㄤ笂鍏锋湁閲嶈鎰忎箟锛屾槸鏁版嵁鎸栨帢涓潪甯搁噸瑕佺殑涓�椤圭爺绌跺唴瀹广�傞�氬父鏁版嵁鍒嗙被鐨勫仛娉曟槸锛屽熀浜庢牱鏈暟鎹厛璁粌鏋勫缓鍒嗙被鍑芥暟鎴栬�呭垎绫绘ā鍨�(涔熺О涓哄垎绫诲櫒)锛岃鍒嗙被鍣ㄧ殑鍏锋湁灏嗗緟鍒嗙被鏁版嵁椤规槧灏勫埌鏌愪竴鐗圭偣绫诲埆鐨勫姛鑳斤紝鏁版嵁鍒嗙被鍜屽洖褰掑垎鏋愰兘鍙敤浜庨娴嬶紝棰勬祴鏄寚浠庡熀浜庢牱鏈暟鎹褰曪紝鏍规嵁鍒嗙被鍑嗗垯鑷姩缁欏嚭瀵规湭鐭ユ暟鎹殑鎺ㄥ箍鎻忚堪锛屼粠鑰屽疄鐜板鏈煡鏁版嵁杩涜棰勬祴聽[1]聽銆�

璐濆彾鏂垎绫绘槸缁熻瀛︾殑鍒嗙被鏂规硶锛屽叾鍒嗘瀽鏂规硶鐨勭壒鐐规槸浣跨敤姒傜巼鏉ヨ〃绀烘墍鏈夊舰寮忕殑涓嶇‘瀹氭�э紝瀛︿範鎴栨帹鐞嗛兘瑕佺敤姒傜巼瑙勫垯鏉ュ疄鐜般��

璐濆彾鏂垎绫荤殑鍘熺悊

缂栬緫

鍩轰簬缁熻瀛︾殑璐濆彾鏂垎绫绘柟娉曚互璐濆彾鏂悊璁轰负鍩虹锛岄�氳繃姹傝В鍚庨獙姒傜巼鍒嗗竷锛岄娴嬫牱鏈睘浜庢煇涓�绫诲埆鐨勬鐜囥�傝礉鍙舵柉鍏紡鍙啓鎴愬涓嬪舰寮�:

P(y|x)=P(x|y)*P(A)*P(y)/(P(x) (4-1)鍏朵腑锛孭(y I x)涓哄悗楠屾鐜囧垎甯冿紝P(y)涓哄厛楠屽垎甯冿紝P(x)閫氬父涓哄父鏁般��


涓轰簡绠�鍖栬繍绠楋紝鏈寸礌璐濆彾鏂垎绫荤畻娉曞亣瀹氫换鎰忓睘鎬у绫诲埆鐨勫奖鍝嶄笌鍏朵粬灞炴�у绫诲埆鐨勫奖鍝嶆棤鍏筹紝杩欑鍋囧畾绉颁负绫绘潯浠剁嫭绔嬫湸绱犲亣瀹氥�傚浘4-3灞曠ず浜嗘湸鏍戣礉鍙舵柉鍒嗙被涓睘鎬у拰绫讳箣闂寸殑鍏崇郴锛屽鍥�4-3鎵�绀猴紝C琛ㄧず寰呭垎绫诲埆锛孉1, ..., A4琛ㄧず鏍锋湰灞炴�э紝绠ご琛ㄧず灞炴�у彉閲忓拰绫诲埆鍙橀噺涔嬮棿鐨勪緷瀛樺叧绯伙紝浠庡浘涓彲浠ョ湅鍑猴紝鍦ㄦ湸绱犺礉鍙舵柉鍒嗙被妯″瀷涓紝鏍锋湰灞炴�i鍜孉j( i涓嶇瓑浜巎)涔嬮棿涓嶅瓨鍦ㄧ浉浜掍緷璧栧叧绯伙紝浠栦滑浠呬笌鑺傜偣绫籆鏈夊叧聽[1]聽銆�

宸茬煡鏍锋湰鏁版嵁x =< x1聽, . .. , xn>(鏍锋湰鏁版嵁x鍏辨湁n绉嶅睘鎬э紝鍏朵腑xi琛ㄧず绗琲涓睘鎬i鐨勫��)灞炰簬浠绘剰绫伙紝(y鈭� { c1,,...,ck})(鎬诲叡k涓被鍒紝cj琛ㄧず绗琷涓被)鐨勬鐜囥�傜粰瀹氫竴涓湭鍒嗙被鐨勬暟鎹牱鏈琗锛屽簲鐢ㄦ湸绱犺礉鍙舵柉鍒嗙被绠楁硶锛岄娴嬫牱鏈暟鎹甔灞炰簬鍏锋湁鏈�楂樺悗楠屾鐜囩殑绫伙紝鏈煡鏍锋湰X灞炰簬绫诲埆c;鐨勬潯浠舵槸锛屽綋涓斾粎褰�

P(ciIX)>P (cjIX)锛�1鈮鈮, (4-2)


璐濆彾鏂垎绫�(10寮�)


鍥犳锛屽皢鏈�澶у寲鍚庨獙姒傜巼P(ciIX)鎴栬�呭叾瀵规暟褰㈠紡绉颁负鏈�澶у悗楠屽亣瀹氾紝璁颁负arg maxyP( y IX)銆�

鏍规嵁鍏ㄦ鐜囧叕寮忥紝瀵逛簬浠绘剰绫诲埆ci銆�

鍦ㄤ换鎰忎竴娆″垎绫讳腑鍙栧�煎潎鐩哥瓑锛屼篃灏辨槸璇达紝鏁版嵁鏍锋湰X浜х敓鐨勬鐜囩浉鍚�(P(X)瀹氫箟涓哄父鏁�)锛屽洜姝わ紝鍙互灏嗗悗楠屾鐜嘝(yl X)琛ㄧず鎴愭鐜囦箻绉姣斿叧绯诲紡:

P(yIX)鈭漃(XIy)*P(y)

鍥犳锛屾眰鍙朼rg maxyP( y IX)鐩稿綋浜庢眰鍙朼rg maxyP(XIy)锛涜�宎rg maxyP(XIy)鐨勮绠楄鐩稿瀹规槗寰堝锛屾墍浠ワ紝鍦ㄥ疄闄呭簲鐢ㄤ腑閫氬父鏍规嵁寮�(4-4 )鏉ユ眰瑙e悗楠屾鐜囥��

鏍规嵁鏈寸礌璐濆彾鏂垎绫荤畻娉曠殑绫绘潯浠剁嫭绔嬪亣璁撅紝缁欏畾鏍锋湰鏁版嵁鐨勭被鏍囧彿锛屽悇灞炴�у�紉i涔嬮棿鐩镐簰鏉′欢鐙珛锛屽郊姝や笉瀛樺湪鐩镐簰渚濊禆鍏崇郴銆�

涔熷氨鏄锛屼负瀵规湭鐭ユ牱鏈琗鍒嗙被锛屽姣忎釜绫籧i璁$畻P(xl ci)P(ci);褰撲笖浠呭綋P(Xlci)P(ci)>P(Xlcj)P(cj)锛�1鈮鈮锛宩鈮爄 (4-7)

瀹氫箟鏍锋湰X灞炰簬绫诲埆ci锛屽嵆X琚寚娲惧埌P(X I ci)P(ci)鏈�澶х殑绫籧i聽[1]聽銆�

璐濆彾鏂垎绫荤壒鐐�

缂栬緫

璐濆彾鏂垎绫绘槸缁熻瀛︽柟娉曪紝瀹冧富瑕佹槸鍩轰簬璐濆彾鏂畾鐞嗐�傞�氳繃璁$畻缁欏畾瀹炰緥灞炰簬涓�涓壒瀹氱被鐨勬鐜囨潵瀵圭粰瀹氬疄渚嬭繘琛屽垎绫汇�傝礉鍙舵柉鍒嗙被鍏锋湁浠ヤ笅鐗圭偣锛�

(1)璐濆彾鏂垎绫讳笉鎶婁竴涓疄渚嬬粷瀵圭殑鎸囨淳缁欐煇涓�绉嶅垎绫伙紝鑰屾槸閫氳繃璁$畻寰楀埌瀹炰緥灞炰簬鏌愪竴鍒嗙被鐨勬鐜囷紝鍏锋湁鏈�澶ф鐜囩殑绫诲氨鏄瀹炰緥鎵�灞炵殑鍒嗙被;

(2)涓�鑸儏鍐典笅鍦ㄨ礉鍙舵柉鍒嗙被涓墍鏈夊睘鎬ч兘娼滃湪鐨勫鍒嗙被缁撴灉鍙戞尌浣滅敤锛岃兘澶熶娇鎵�鏈夌殑灞炴�ч兘鍙備笌鍒板垎绫讳腑;

(3)璐濆彾鏂垎绫诲疄渚嬬殑灞炴�у彲浠ユ槸绂绘暎鐨勩�佽繛缁殑锛屼篃鍙互鏄贩鍚堢殑銆�

璐濆彾鏂柟娉曞洜鍏跺湪鐞嗚涓婄粰鍑轰簡鏈�灏忓寲璇樊鐨勬渶浼樿В鍐虫柟娉曡�岃骞挎硾搴旂敤浜庡垎绫婚棶棰樸�傚湪璐濆彾鏂柟娉曠殑鍩虹涓婏紝鎻愬嚭浜嗚礉鍙舵柉缃戠粶((Bayesian Network, BN)鏂规硶銆傛湸绱犺礉鍙舵柉鍒嗙被灏辨槸鍋囧畾涓�涓睘鎬у浜庣粰瀹氬垎绫荤殑褰卞搷鐙珛浜庡叾浠栧睘鎬с�傝繖涓�鍋囧畾琚О浣滄潯浠剁嫭绔嬶紝瀵瑰疄鍔涘睘鎬х殑杩欑鍋囪澶уぇ绠�鍖栦簡鍒嗙被鎵�闇�鐨勮绠楅噺銆傚ぇ閲忕殑鐮旂┒缁撴灉琛ㄦ槑锛岃櫧鐒禕N绠楁硶瀵瑰睘鎬х粨鐐逛箣闂寸殑杩炴帴缁撴瀯杩涜浜嗛檺鍒讹紝浣嗘槸鏈寸礌璐濆彾鏂殑鍒嗙被鍣ㄧ殑鍒嗙被鎬ц兘浼樹簬鏍囧噯鐨勮礉鍙舵柉缃戠粶鍒嗙被鍣╗2]聽銆�

璇嶆潯鍥惧唽鏇村鍥惧唽


璇嶆潯鍥剧墖(2)


璐濆彾鏂垎绫�(10)


鎽勫奖娴嬮噺涓庨仴鎰熷

鈻�鎽勫奖娴嬮噺瀛�鈻�鎽勫奖瀛�鈻�鑸ぉ鎽勫奖鈻�鑸┖鎽勫奖鈻�鑸┖鎽勫奖鏈�

鈻�闈為噺娴嬫憚褰辨満鈻�绔嬩綋鎽勫奖鏈�鈻�閲忔祴鎽勫奖鏈�鈻�鍏ㄦ櫙鎽勫奖鏈�鈻�妗嗗箙鎽勫奖鏈�

鈻�鏉″箙[鑸甫]鎽勫奖鏈�鈻�CCD鎽勫奖鏈�鈻�澶氳氨娈垫憚褰辨満鈻�寮归亾鎽勫奖鏈�鈻�鍦伴潰鎽勫奖鏈�

鈻�姘翠笅鎽勫奖鏈�鈻�澶у儚骞呮憚褰辨満鈻�鎭掓槦鎽勫奖鏈�鈻�鍦板钩绾挎憚褰辨満鈻�鍙嶆潫鍏夊绠℃憚褰辨満

鈻�鎽勫奖鏈烘鏍�鈻�鍍忓箙鈻�妗嗘爣鈻�鍍忕Щ琛ュ伩鈻�鐒﹁窛

鈻�蹇棬鈻�涓績寮忓揩闂�鈻�甯樺箷寮忓揩闂�鈻�鏅繁鈻�瓒呯劍鐐硅窛绂�

鈻�鍏夊湀鈻�鍏夊湀鍙锋暟鈻�鍍忓満瑙�鈻�鐬椂瑙嗗満鈻�鎽勫奖娴嬮噺鐣稿彉宸�

鈻�鍏ㄦ櫙鐣稿彉鈻�寰勫悜鐣稿彉鈻�鍒囧悜鐣稿彉鈻�鐗╅暅鍒嗚鲸鍔�鈻�姝g墖

鈻�璐熺墖鈻�閫忔槑璐熺墖鈻�閫忔槑姝g墖鈻�鍙嶈浆鐗�鈻�鑹茬洸鐗�


鍏朵粬绉戞妧鍚嶈瘝

鍙傝�冭祫鏂�

路聽1.鍩轰簬鍙犲墠閬撻泦鐨勫偍灞傚弬鏁板弽婕旀柟娉曠爺绌�锛庝腑鍥界煡缃戯紟2011骞碵寮曠敤鏃ユ湡2017-09-16]

路聽2.鍩轰簬娌圭敯鍘嬭寰湴闇囩洃娴嬬殑闇囩浉璇嗗埆涓庨渿婧愬畾浣嶆柟娉曠爺绌�锛庝腑鍥界煡缃戯紟2012骞碵寮曠敤鏃ユ湡2017-09-16]

绁炵粡缃戠粶

绁炵粡缃戠粶鍙互鎸囧悜涓ょ锛屼竴涓槸鐢熺墿绁炵粡缃戠粶锛屼竴涓槸浜哄伐绁炵粡缃戠粶銆�

鐢熺墿绁炵粡缃戠粶锛氫竴鑸寚鐢熺墿鐨�澶ц剳绁炵粡鍏�锛�缁嗚優锛�瑙︾偣绛夌粍鎴愮殑缃戠粶锛岀敤浜庝骇鐢熺敓鐗╃殑鎰忚瘑锛屽府鍔╃敓鐗╄繘琛�鎬濊��鍜�琛屽姩銆�

浜哄伐绁炵粡缃戠粶锛圓rtificial Neural Networks锛岀畝鍐欎负ANNs锛変篃绠�绉颁负绁炵粡缃戠粶锛圢Ns锛夋垨绉颁綔杩炴帴妯″瀷锛圕onnection Model锛夛紝瀹冩槸涓�绉嶆ā浠垮姩鐗╃缁忕綉缁滆涓虹壒寰侊紝杩涜鍒嗗竷寮忓苟琛屼俊鎭鐞嗙殑绠楁硶鏁板妯″瀷銆傝繖绉嶇綉缁滀緷闈犵郴缁熺殑澶嶆潅绋嬪害锛岄�氳繃璋冩暣鍐呴儴澶ч噺鑺傜偣涔嬮棿鐩镐簰杩炴帴鐨勫叧绯伙紝浠庤�岃揪鍒板鐞嗕俊鎭殑鐩殑銆�

浜哄伐绁炵粡缃戠粶锛氭槸涓�绉嶅簲鐢ㄧ被浼间簬澶ц剳绁炵粡绐佽Е鑱旀帴鐨勭粨鏋勮繘琛屼俊鎭鐞嗙殑鏁板妯″瀷銆傚湪宸ョ▼涓庡鏈晫涔熷父鐩存帴绠�绉颁负鈥滅缁忕綉缁溾�濇垨绫荤缁忕綉缁溿��

涔﹀悕

绁炵粡缃戠粶

浣滆��

渚獩褰紝鏉滀含涔夛紝姹

ISBN

聽9787560619026

椤垫暟

聽223

瀹氫环

锟�26.00

鍑虹増绀�

瑗垮畨鐢靛瓙绉戞妧澶у鍑虹増绀�

鍑虹増鏃堕棿

2007-8-1

绉嶇被

浜哄伐绁炵粡缃戠粶锛岀敓鐗╃缁忕綉缁�

鐩綍

00001.聽1聽鐮旂┒鍐呭

00002.聽鈻�鐢熺墿鍘熷瀷

00003.聽鈻�寤虹珛妯″瀷

00004.聽鈻�绠楁硶

00005.聽鈻�搴旂敤

00006.聽2聽鏈哄櫒瀛︿範鍜岀浉鍏抽鍩燂細

00001.聽3聽鍒嗙被锛�

00002.聽4聽宸ヤ綔鍘熺悊

00003.聽5聽鍙戝睍鍘嗗彶

00004.聽6聽甯歌鐨勫伐鍏�

00005.聽7聽鐮旂┒鏂瑰悜

00001.聽8聽鐩稿叧涔︾睄

00002.聽9聽鍐呭绠�浠�

00003.聽10聽浣滆�呯畝浠�

00004.聽11聽鐩綍鎬昏

鐮旂┒鍐呭

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鍩轰簬绾︽潫鐨勮仛绫伙細鐜板疄涓栫晫鐨勫簲鐢ㄥ彲鑳介渶瑕佸湪鍚勭绾︽潫鏉′欢涓嬭繘琛岃仛绫汇�傚亣璁句綘鐨勫伐浣滄槸鍦ㄤ竴涓煄甯備腑涓虹粰瀹氭暟鐩殑鑷姩鎻愭鏈洪�夋嫨瀹夋斁浣嶇疆锛屼负浜嗕綔鍑哄喅瀹氾紝浣犲彲浠ュ浣忓畢鍖�杩涜鑱氱被锛屽悓鏃惰�冭檻濡傚煄甯傜殑娌虫祦鍜屽叕璺綉锛屾瘡涓湴鍖虹殑瀹㈡埛瑕佹眰绛夋儏鍐点�傝鎵惧埌鏃㈡弧瓒崇壒瀹氱殑绾︽潫锛屽張鍏锋湁鑹ソ鑱氱被鐗规�х殑鏁版嵁鍒嗙粍鏄竴椤瑰叿鏈夋寫鎴樻�х殑浠诲姟銆�

鍙В閲婃�у拰鍙敤鎬э細鐢ㄦ埛甯屾湜鑱氱被缁撴灉鏄彲瑙i噴鐨勶紝鍙悊瑙g殑锛屽拰鍙敤鐨勩�備篃灏辨槸璇达紝鑱氱被鍙兘闇�瑕佸拰鐗瑰畾鐨勮涔夎В閲婂拰搴旂敤鐩歌仈绯汇�傚簲鐢ㄧ洰鏍囧浣曞奖鍝嶈仛绫绘柟娉曠殑閫夋嫨涔熸槸涓�涓噸瑕佺殑鐮旂┒璇鹃銆�

璁$畻鏂规硶

浼犵粺鐨勮仛绫诲垎鏋愯绠楁柟娉曚富瑕佹湁濡備笅鍑犵锛�

1銆佸垝鍒嗘柟娉�(partitioning methods)

缁欏畾涓�涓湁N涓厓缁勬垨鑰呯邯褰曠殑鏁版嵁闆嗭紝鍒嗚娉曞皢鏋勯�燢涓垎缁勶紝姣忎竴涓垎缁勫氨浠h〃涓�涓仛绫伙紝K鑱氱被绠楁硶涓彲浠ユ斁瀹斤級锛涘浜庣粰瀹氱殑K锛岀畻娉曢鍏堢粰鍑轰竴涓垵濮嬬殑鍒嗙粍鏂规硶锛屼互鍚庨�氳繃鍙嶅杩唬鐨勬柟娉曟敼鍙樺垎缁勶紝浣垮緱姣忎竴娆℃敼杩涗箣鍚庣殑鍒嗙粍鏂规閮借緝鍓嶄竴娆″ソ锛岃�屾墍璋撳ソ鐨勬爣鍑嗗氨鏄細鍚屼竴鍒嗙粍涓殑璁板綍瓒婅繎瓒婂ソ锛岃�屼笉鍚屽垎缁勪腑鐨勭邯褰曡秺杩滆秺濂姐�備娇鐢ㄨ繖涓熀鏈�濇兂鐨勭畻娉曟湁锛�K-MEANS绠楁硶銆並-MEDOIDS绠楁硶銆丆LARANS绠楁硶锛�

澶ч儴鍒嗗垝鍒嗘柟娉曟槸鍩轰簬璺濈鐨勩�傜粰瀹氳鏋勫缓鐨勫垎鍖烘暟k锛屽垝鍒嗘柟娉曢鍏堝垱寤轰竴涓垵濮嬪寲鍒掑垎銆傜劧鍚庯紝瀹冮噰鐢ㄤ竴绉嶈凯浠g殑閲嶅畾浣嶆妧鏈紝閫氳繃鎶婂璞′粠涓�涓粍绉诲姩鍒板彟涓�涓粍鏉ヨ繘琛屽垝鍒嗐�備竴涓ソ鐨勫垝鍒嗙殑涓�鑸噯澶囨槸锛氬悓涓�涓皣涓殑瀵硅薄灏藉彲鑳界浉浜掓帴杩戞垨鐩稿叧锛岃�屼笉鍚岀殑绨囦腑鐨勫璞″敖鍙兘杩滅鎴栦笉鍚屻�傝繕鏈夎澶氳瘎鍒ゅ垝鍒嗚川閲忕殑鍏朵粬鍑嗗垯銆備紶缁熺殑鍒掑垎鏂规硶鍙互鎵╁睍鍒板瓙绌洪棿鑱氱被锛岃�屼笉鏄悳绱㈡暣涓暟鎹┖闂淬�傚綋瀛樺湪寰堝灞炴�у苟涓旀暟鎹█鐤忔椂锛岃繖鏄湁鐢ㄧ殑銆備负浜嗚揪鍒板叏灞�鏈�浼橈紝鍩轰簬鍒掑垎鐨勮仛绫诲彲鑳介渶瑕佺┓涓炬墍鏈夊彲鑳界殑鍒掑垎锛岃绠楅噺鏋佸ぇ銆傚疄闄呬笂锛屽ぇ澶氭暟搴旂敤閮介噰鐢ㄤ簡娴佽鐨勫惎鍙戝紡鏂规硶锛屽k-鍧囧�煎拰k-涓績绠楁硶锛屾笎杩戠殑鎻愰珮鑱氱被璐ㄩ噺锛岄�艰繎灞�閮ㄦ渶浼樿В銆傝繖浜涘惎鍙戝紡鑱氱被鏂规硶寰堥�傚悎鍙戠幇涓皬瑙勬ā鐨勬暟鎹簱涓皬瑙勬ā鐨勬暟鎹簱涓殑鐞冪姸绨囥�備负浜嗗彂鐜板叿鏈夊鏉傚舰鐘剁殑绨囧拰瀵硅秴澶у瀷鏁版嵁闆嗚繘琛岃仛绫伙紝闇�瑕佽繘涓�姝ユ墿灞曞熀浜庡垝鍒嗙殑鏂规硶銆俒2]

2銆佸眰娆℃柟娉�(hierarchical methods)

杩欑鏂规硶瀵圭粰瀹氱殑鏁版嵁闆嗚繘琛屽眰娆′技鐨勫垎瑙o紝鐩村埌鏌愮鏉′欢婊¤冻涓烘銆傚叿浣撳張鍙垎涓衡�滆嚜搴曞悜涓娾�濆拰鈥滆嚜椤跺悜涓嬧�濅袱绉嶆柟妗堛�備緥濡傚湪鈥滆嚜搴曞悜涓娾�濇柟妗堜腑锛屽垵濮嬫椂姣忎竴涓暟鎹邯褰曢兘缁勬垚涓�涓崟鐙殑缁勶紝鍦ㄦ帴涓嬫潵鐨勮凯浠d腑锛屽畠鎶婇偅浜涚浉浜掗偦杩戠殑缁勫悎骞舵垚涓�涓粍锛岀洿鍒版墍鏈夌殑璁板綍缁勬垚涓�涓垎缁勬垨鑰呮煇涓潯浠舵弧瓒充负姝€�備唬琛ㄧ畻娉曟湁锛欱IRCH绠楁硶銆丆URE绠楁硶銆丆HAMELEON绠楁硶绛夛紱

灞傛鑱氱被鏂规硶鍙互鏄熀浜庤窛绂荤殑鎴栧熀浜庡瘑搴︽垨杩為�氭�х殑銆傚眰娆¤仛绫绘柟娉曠殑涓�浜涙墿灞曚篃鑰冭檻浜嗗瓙绌洪棿鑱氱被銆傚眰娆℃柟娉曠殑缂洪櫡鍦ㄤ簬锛屼竴鏃︿竴涓楠わ紙鍚堝苟鎴栧垎瑁傦級瀹屾垚锛屽畠灏变笉鑳借鎾ら攢銆傝繖涓弗鏍艰瀹氭槸鏈夌敤鐨勶紝鍥犱负涓嶇敤鎷呭績涓嶅悓閫夋嫨鐨勭粍鍚堟暟鐩紝瀹冨皢浜х敓杈冨皬鐨勮绠楀紑閿�銆傜劧鑰岃繖绉嶆妧鏈笉鑳芥洿姝i敊璇殑鍐冲畾銆傚凡缁忔彁鍑轰簡涓�浜涙彁楂樺眰娆¤仛绫昏川閲忕殑鏂规硶銆偮燵2]聽

3銆佸熀浜庡瘑搴︾殑鏂规硶(density-based methods)

鍩轰簬瀵嗗害鐨勬柟娉曚笌鍏跺畠鏂规硶鐨勪竴涓牴鏈尯鍒槸锛氬畠涓嶆槸鍩轰簬鍚勭鍚勬牱鐨勮窛绂荤殑锛岃�屾槸鍩轰簬瀵嗗害鐨勩�傝繖鏍峰氨鑳藉厠鏈嶅熀浜庤窛绂荤殑绠楁硶鍙兘鍙戠幇鈥滅被鍦嗗舰鈥濈殑鑱氱被鐨勭己鐐广�傝繖涓柟娉曠殑鎸囧鎬濇兂灏辨槸锛屽彧瑕佷竴涓尯鍩熶腑鐨勭偣鐨勫瘑搴﹀ぇ杩囨煇涓�闃�鍊�锛屽氨鎶婂畠鍔犲埌涓庝箣鐩歌繎鐨勮仛绫讳腑鍘汇�備唬琛ㄧ畻娉曟湁锛欴BSCAN绠楁硶銆丱PTICS绠楁硶銆丏ENCLUE绠楁硶绛夛紱

4銆佸熀浜庣綉鏍肩殑鏂规硶(grid-based methods)

杩欑鏂规硶棣栧厛灏嗘暟鎹┖闂村垝鍒嗘垚涓烘湁闄愪釜鍗曞厓锛坈ell锛夌殑缃戞牸缁撴瀯,鎵�鏈夌殑澶勭悊閮芥槸浠ュ崟涓殑鍗曞厓涓哄璞$殑銆傝繖涔堝鐞嗙殑涓�涓獊鍑虹殑浼樼偣灏辨槸澶勭悊閫熷害寰堝揩锛岄�氬父杩欐槸涓庣洰鏍囨暟鎹簱涓褰曠殑涓暟鏃犲叧鐨勶紝瀹冨彧涓庢妸鏁版嵁绌洪棿鍒嗕负澶氬皯涓崟鍏冩湁鍏炽�備唬琛ㄧ畻娉曟湁锛歋TING绠楁硶銆丆LIQUE绠楁硶銆乄AVE-CLUSTER绠楁硶锛�

寰堝绌洪棿鏁版嵁鎸栨帢闂锛屼娇鐢ㄧ綉鏍奸�氬父閮芥槸涓�绉嶆湁鏁堢殑鏂规硶銆傚洜姝わ紝鍩轰簬缃戞牸鐨勬柟娉曞彲浠ュ拰鍏朵粬鑱氱被鏂规硶闆嗘垚銆偮燵2]聽

5銆佸熀浜庢ā鍨嬬殑鏂规硶(model-based methods)

鍩轰簬妯″瀷鐨勬柟娉曠粰姣忎竴涓仛绫诲亣瀹氫竴涓ā鍨嬶紝鐒跺悗鍘诲鎵捐兘澶熷緢濂界殑婊¤冻杩欎釜妯″瀷鐨勬暟鎹泦銆傝繖鏍蜂竴涓ā鍨嬪彲鑳芥槸鏁版嵁鐐瑰湪绌洪棿涓殑瀵嗗害鍒嗗竷鍑芥暟鎴栬�呭叾瀹冦�傚畠鐨勪竴涓綔鍦ㄧ殑鍋囧畾灏辨槸锛氱洰鏍囨暟鎹泦鏄敱涓�绯诲垪鐨�姒傜巼鍒嗗竷鎵�鍐冲畾鐨勩�傞�氬父鏈変袱绉嶅皾璇曟柟鍚戯細缁熻鐨勬柟妗堝拰绁炵粡缃戠粶鐨勬柟妗堛��

褰撶劧鑱氱被鏂规硶杩樻湁锛�浼犻�掗棴鍖�娉曪紝甯冨皵鐭╅樀娉曪紝鐩存帴鑱氱被娉曪紝鐩稿叧鎬у垎鏋�鑱氱被锛屽熀浜庣粺璁$殑鑱氱被鏂规硶绛夈��

鐮旂┒鎯呭喌

浼犵粺鐨勮仛绫诲凡缁忔瘮杈冩垚鍔熺殑瑙e喅浜嗕綆缁存暟鎹殑鑱氱被闂銆備絾鏄敱浜庡疄闄呭簲鐢ㄤ腑鏁版嵁鐨勫鏉傛�э紝鍦ㄥ鐞嗚澶氶棶棰樻椂锛岀幇鏈夌殑绠楁硶缁忓父澶辨晥锛岀壒鍒槸瀵逛簬楂樼淮鏁版嵁鍜屽ぇ鍨嬫暟鎹殑鎯呭喌銆傚洜涓轰紶缁熻仛绫绘柟娉曞湪楂樼淮鏁版嵁闆嗕腑杩涜鑱氱被鏃讹紝涓昏閬囧埌涓や釜闂銆傗憼楂樼淮鏁版嵁闆嗕腑瀛樺湪澶ч噺鏃犲叧鐨勫睘鎬т娇寰楀湪鎵�鏈夌淮涓瓨鍦ㄧ皣鐨勫彲鑳芥�у嚑涔庝负闆讹紱鈶�楂樼淮绌洪棿涓暟鎹緝浣庣淮绌洪棿涓暟鎹垎甯冭绋�鐤忥紝鍏朵腑鏁版嵁闂磋窛绂诲嚑涔庣浉绛夋槸鏅亶鐜拌薄锛岃�屼紶缁熻仛绫绘柟娉曟槸鍩轰簬璺濈杩涜鑱氱被鐨勶紝鍥犳鍦ㄩ珮缁寸┖闂翠腑鏃犳硶鍩轰簬璺濈鏉ユ瀯寤虹皣銆�

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路聽1.鏁版嵁鑱氱被锛庣淮鍩虹櫨绉慬寮曠敤鏃ユ湡2013-04-20]

路聽2.Jiawei Han锛庢暟鎹寲鎺樻蹇典笌鎶�鏈細鏈烘宸ヤ笟鍑虹増绀撅紝2012

鏃堕棿搴忓垪

鏃堕棿搴忓垪

聽缂栬緫

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涓枃鍚�

鏃堕棿搴忓垪

澶栨枃鍚�

time series

绫诲瀷

搴忓垪

鏋勬垚瑕佺礌

鐜拌薄鎵�灞炵殑鏃堕棿绛�

瑕佺礌涓�

鏃堕棿

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鎸囨爣鏁板��

浣滅敤

鎻忚堪鐜拌薄鐨勫彂灞曠姸鎬佸拰缁撴灉

鐩綍

00001.聽1聽鏃堕棿搴忓垪

00002.聽2聽浣滅敤

00003.聽3聽绉嶇被

00001.聽4聽鐗瑰緛

00002.聽5聽缂栧埗鍘熷垯

00003.聽6聽鍙橀噺鐗瑰緛

00001.聽7聽鍒嗘瀽鏂规硶

00002.聽8聽鍒嗘瀽妯″瀷

00003.聽9聽棰勬祴

鏃堕棿搴忓垪

缂栬緫

鏋勬垚瑕佺礌锛氶暱鏈熻秼鍔匡紝瀛h妭鍙樺姩锛屽惊鐜彉鍔紝涓嶈鍒欏彉鍔�

闀挎湡瓒嬪娍锛埪燭聽锛夌幇璞″湪杈冮暱鏃舵湡鍐呭彈鏌愮鏍规湰鎬у洜绱犱綔鐢ㄨ�屽舰鎴愮殑鎬荤殑鍙樺姩瓒嬪娍

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寰幆鍙樺姩锛埪燙聽锛夌幇璞′互鑻ュ共骞翠负鍛ㄦ湡鎵�鍛堢幇鍑虹殑娉㈡氮璧蜂紡褰㈡�佺殑鏈夎寰嬬殑鍙樺姩

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浣滅敤

缂栬緫

1.聽鍙互鍙嶆槧绀句細缁忔祹鐜拌薄鐨勫彂灞曞彉鍖栬繃绋嬶紝鎻忚堪鐜拌薄鐨勫彂灞曠姸鎬佸拰缁撴灉銆�

2.聽鍙互鐮旂┒绀句細缁忔祹鐜拌薄鐨勫彂灞曡秼鍔垮拰鍙戝睍閫熷害銆�

3.聽鍙互鎺㈢储鐜拌薄鍙戝睍鍙樺寲鐨勮寰嬶紝瀵规煇浜涚ぞ浼氱粡娴庣幇璞¤繘琛岄娴嬨��

4.聽鍒╃敤鏃堕棿搴忓垪鍙互鍦ㄤ笉鍚屽湴鍖烘垨鍥藉涔嬮棿杩涜瀵规瘮鍒嗘瀽锛岃繖涔熸槸缁熻鍒嗘瀽鐨勯噸瑕佹柟娉曚箣涓�銆�

绉嶇被

缂栬緫

(涓�)缁濆鏁版椂闂村簭鍒�

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鏃舵湡搴忓垪鐨勪富瑕佺壒鐐规湁锛�

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鏃剁偣搴忓垪鐨勪富瑕佺壒鐐规湁锛�

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3锛夊簭鍒椾腑姣忎釜鎸囨爣鏁板�奸�氬父鏄�氳繃瀹氭湡鐨勪竴娆$櫥璁板彇寰楃殑銆�

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(涓�)骞冲潎鏁版椂闂村簭鍒�

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鐗瑰緛

缂栬緫

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2銆佹椂闂村簭鍒楁暟鎹彉鍔ㄥ瓨鍦ㄧ潃瑙勫緥鎬т笌涓嶈寰嬫��

鏃堕棿搴忓垪涓殑姣忎釜瑙傚療鍊煎ぇ灏�,鏄奖鍝嶅彉鍖栫殑鍚勭涓嶅悓鍥犵礌鍦ㄥ悓涓�鏃跺埢鍙戠敓浣滅敤鐨勭患鍚堢粨鏋溿�備粠杩欎簺褰卞搷鍥犵礌鍙戠敓浣滅敤鐨勫ぇ灏忓拰鏂瑰悜鍙樺寲鐨勬椂闂寸壒鎬ф潵鐪�,杩欎簺鍥犵礌閫犳垚鐨勬椂闂村簭鍒楁暟鎹殑鍙樺姩鍒嗕负鍥涚绫诲瀷銆�

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缂栧埗鍘熷垯

缂栬緫

淇濊瘉搴忓垪涓悇鏈熸寚鏍囨暟鍊肩殑鍙瘮鎬�

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鍙橀噺鐗瑰緛

缂栬緫

闈炲钩绋虫�э紙nonstationarity锛屼篃璇戜綔涓嶅钩绋虫�э紝闈炵ǔ瀹氭�э級锛氬嵆鏃堕棿搴忓垪鍙橀噺鏃犳硶鍛堢幇鍑轰竴涓暱鏈熻秼鍔垮苟鏈�缁堣秼浜庝竴涓父鏁版垨鏄竴涓嚎鎬у嚱鏁般��

娉㈠姩骞呭害闅忔椂闂村彉鍖栵紙Time锛峷arying Volatility锛夛細鍗充竴涓椂闂村簭鍒楀彉閲忕殑鏂瑰樊闅忔椂闂寸殑鍙樺寲鑰屽彉鍖栬繖涓や釜鐗瑰緛浣垮緱鏈夋晥鍒嗘瀽鏃堕棿搴忓垪鍙橀噺鍗佸垎鍥伴毦銆�

骞崇ǔ鍨嬫椂闂存暟鍒楋紙Stationary Time Series锛夌郴鎸囦竴涓椂闂存暟鍒楀叾缁熻鐗规�у皢涓嶉殢鏃堕棿涔嬪彉鍖栬�屾敼鍙樿�呫��

鍒嗘瀽鏂规硶

缂栬緫

锛堜竴锛夋寚鏍囧垎鏋愭硶

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锛堜簩锛夋瀯鎴愬洜绱犲垎鏋愭硶

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鍒嗘瀽妯″瀷

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鏃堕棿鏁板垪鐨勭粍鍚堟ā鍨�

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棰勬祴

缂栬緫

鏃堕棿搴忓垪棰勬祴涓昏鏄互杩炵画鎬у師鐞嗕綔涓轰緷鎹殑銆傝繛缁�у師鐞嗘槸鎸囧瑙備簨鐗╃殑鍙戝睍鍏锋湁鍚堜箮瑙勫緥鐨勮繛缁�э紝浜嬬墿鍙戝睍鏄寜鐓у畠鏈韩鍥烘湁鐨勮寰嬭繘琛岀殑銆傚湪涓�瀹氭潯浠朵笅锛屽彧瑕佽寰嬭禆浠ュ彂鐢熶綔鐢ㄧ殑鏉′欢涓嶄骇鐢熻川鐨勫彉鍖栵紝鍒欎簨鐗╃殑鍩烘湰鍙戝睍瓒嬪娍鍦ㄦ湭鏉ュ氨杩樹細寤剁画涓嬪幓銆�

鏃堕棿搴忓垪棰勬祴灏辨槸鍒╃敤缁熻鎶�鏈笌鏂规硶锛屼粠棰勬祴鎸囨爣鐨勬椂闂村簭鍒椾腑鎵惧嚭婕斿彉妯″紡锛屽缓绔嬫暟瀛︽ā鍨嬶紝瀵归娴嬫寚鏍囩殑鏈潵鍙戝睍瓒嬪娍鍋氬嚭瀹氶噺浼拌[1]聽銆�

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璇嶆潯鏍囩锛�

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鎺ㄨ崘绯荤粺

鎺ㄨ崘绯荤粺

聽缂栬緫

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涓枃鍚�

鎺ㄨ崘绯荤粺

澶栨枃鍚�

Recommender system

搴旂敤

鐢靛瓙鍟嗗姟

瀹氫箟

鐢靛晢缃戠珯鍚戝鎴锋彁渚涘晢鍝佷俊鎭缓璁�

鐩綍

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鎺ㄨ崘绯荤粺鐜板凡骞挎硾搴旂敤浜庡緢澶氶鍩燂紝鍏朵腑鏈�鍏稿瀷骞跺叿鏈夎壇濂界殑鍙戝睍鍜屽簲鐢ㄥ墠鏅殑棰嗗煙灏辨槸鐢靛瓙鍟嗗姟棰嗗煙銆傚悓鏃跺鏈晫瀵规帹鑽愮郴缁熺殑鐮旂┒鐑害涓�鐩村緢楂橈紝閫愭褰㈡垚浜嗕竴闂ㄧ嫭绔嬬殑瀛︾銆�

瀹氫箟

鎺ㄨ崘绯荤粺妯″瀷

鎺ㄨ崘绯荤粺鏈�3涓噸瑕佺殑妯″潡锛氱敤鎴峰缓妯℃ā鍧椼�佹帹鑽愬璞″缓妯℃ā鍧椼�佹帹鑽愮畻娉曟ā鍧椼�傞�氱敤鐨勬帹鑽愮郴缁熸ā鍨嬫祦绋嬪鍥俱�傛帹鑽愮郴缁熸妸鐢ㄦ埛妯″瀷涓叴瓒i渶姹備俊鎭拰鎺ㄨ崘瀵硅薄妯″瀷涓殑鐗瑰緛淇℃伅鍖归厤锛屽悓鏃朵娇鐢ㄧ浉搴旂殑鎺ㄨ崘绠楁硶杩涜璁$畻绛涢�夛紝鎵惧埌鐢ㄦ埛鍙兘鎰熷叴瓒g殑鎺ㄨ崘瀵硅薄锛岀劧鍚庢帹鑽愮粰鐢ㄦ埛銆�

鍙戝睍鍘嗙▼

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1995骞�3鏈堬紝鍗¤�愬熀.姊呴殕澶у鐨凴obertArmstrong绛変汉鍦ㄧ編鍥戒汉宸ユ櫤鑳藉崗浼氫笂鎻愬嚭浜嗕釜鎬у寲瀵艰埅绯荤粺Web Watcher锛�鏂潶绂忓ぇ瀛�鐨凪arkoBalabanovic绛変汉鍦ㄥ悓涓�浼氳涓婃帹鍑轰簡涓�у寲鎺ㄨ崘绯荤粺LIRA锛�

1995骞�8鏈堬紝楹荤渷鐞嗗伐瀛﹂櫌鐨凥enry Lieberman鍦ㄥ浗闄呬汉宸ユ櫤鑳借仈鍚堝ぇ浼氾紙IJCAI锛変笂鎻愬嚭浜嗕釜鎬у寲瀵艰埅鏅鸿兘浣揕etizia锛�

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1997骞达紝AT&T瀹為獙瀹ゆ彁鍑轰簡鍩轰簬鍗忎綔杩囨护鐨勪釜鎬у寲鎺ㄨ崘绯荤粺PHOAKS鍜孯eferral Web;

1999骞达紝寰峰浗Dresden鎶�鏈ぇ瀛︾殑Tanja Joerding瀹炵幇浜嗕釜鎬у寲鐢靛瓙鍟嗗姟鍘熷瀷绯荤粺TELLIM锛�

2000骞达紝NEC鐮旂┒闄㈢殑Kurt绛変汉涓烘悳绱㈠紩鎿�CiteSeer澧炲姞浜嗕釜鎬у寲鎺ㄨ崘鍔熻兘锛�

2001骞达紝绾界害澶у鐨凣ediminas Adoavicius鍜孉lexander Tuzhilin瀹炵幇浜嗕釜鎬у寲鐢靛瓙鍟嗗姟缃戠珯鐨勭敤鎴峰缓妯$郴缁�1锛�1Pro锛�

2001骞达紝IBM鍏徃鍦ㄥ叾鐢靛瓙鍟嗗姟骞冲彴Websphere涓鍔犱簡涓�у寲鍔熻兘锛屼互渚垮晢瀹跺紑鍙戜釜鎬у寲鐢靛瓙鍟嗗姟缃戠珯銆�

2003骞达紝Google寮�鍒涗簡AdWords鐩堝埄妯″紡锛岄�氳繃鐢ㄦ埛鎼滅储鐨勫叧閿瘝鏉ユ彁渚涚浉鍏崇殑骞垮憡銆侫dWords鐨勭偣鍑荤巼寰堥珮锛屾槸Google骞垮憡鏀跺叆鐨勪富瑕佹潵婧愩��2007骞�3鏈堝紑濮嬶紝Google涓篈dWords娣诲姞浜嗕釜鎬у寲鍏冪礌銆備笉浠呬粎鍏虫敞鍗曟鎼滅储鐨勫叧閿瘝锛岃�屾槸瀵圭敤鎴蜂竴娈垫椂闂村唴鐨勬悳绱㈠巻鍙茶繘琛岃褰曞拰鍒嗘瀽锛屾嵁姝や簡瑙g敤鎴风殑鍠滃ソ鍜岄渶姹傦紝鏇翠负绮剧‘鍦板憟鐜扮浉鍏崇殑骞垮憡鍐呭銆�

2007骞达紝闆呰檸鎺ㄥ嚭浜哠martAds骞垮憡鏂规銆傞泤铏庢帉鎻′簡娴烽噺鐨勭敤鎴蜂俊鎭紝濡傜敤鎴风殑鎬у埆銆佸勾榫勩�佹敹鍏ユ按骞炽�佸湴鐞嗕綅缃互鍙婄敓娲绘柟寮忕瓑锛屽啀鍔犱笂瀵圭敤鎴锋悳绱€�佹祻瑙堣涓虹殑璁板綍锛屼娇寰楅泤铏庡彲浠ヤ负鐢ㄦ埛鍛堢幇涓�у寲鐨勬í骞呭箍鍛娿��

2009骞达紝Overstock锛堢編鍥借憲鍚嶇殑缃戜笂闆跺敭鍟嗭級寮�濮嬭繍鐢–hoiceStream鍏徃鍒朵綔鐨勪釜鎬у寲妯箙骞垮憡鏂规锛屽湪涓�浜涢珮娴侀噺鐨勭綉绔欎笂鎶曟斁浜у搧骞垮憡銆偮燨verstock鍦ㄨ繍琛岃繖椤逛釜鎬у寲妯箙骞垮憡鐨勫垵鏈熷氨鍙栧緱浜嗘儕浜虹殑鎴愭灉锛屽叕鍙哥О锛氣�滃箍鍛婄殑鐐瑰嚮鐜囨槸浠ュ墠鐨勪袱鍊嶏紝浼撮殢鑰屾潵鐨勯攢鍞闀夸篃楂樿揪20%鑷�30%銆傗��

2009骞�7鏈堬紝鍥藉唴棣栦釜鎺ㄨ崘绯荤粺绉戠爺鍥㈤槦鍖椾含鐧惧垎鐐逛俊鎭鎶�鏈夐檺鍏徃鎴愮珛锛岃鍥㈤槦涓撴敞浜庢帹鑽愬紩鎿庢妧鏈笌瑙e喅鏂规锛屽湪鍏舵帹鑽愬紩鎿庢妧鏈笌鏁版嵁骞冲彴涓婃眹闆嗕簡鍥藉唴澶栫櫨浣欏鐭ュ悕鐢靛瓙鍟嗗姟缃戠珯涓庤祫璁被缃戠珯锛屽苟閫氳繃杩欎簺B2C缃戠珯姣忓ぉ涓烘暟浠ュ崈涓囪鐨勬秷璐硅�呮彁渚涘疄鏃舵櫤鑳界殑鍟嗗搧鎺ㄨ崘銆�

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涓昏鎺ㄨ崘鏂规硶

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鍩轰簬鍐呭鎺ㄨ崘

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浣撶郴缁撴瀯

缂栬緫

鏈嶅姟鍣ㄧ鎺ㄨ崘绯荤粺

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鍩轰簬瀹㈡埛绔殑鎺ㄨ崘绯荤粺鏈夊涓嬩紭鐐癸細

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鍩轰簬瀹㈡埛绔殑鎺ㄨ崘绯荤粺鏈変竴瀹氱己鐐癸細

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鐭ュ悕鍥㈤槦

缂栬緫

鏄庡凹鑻忚揪澶уGroupLens锛圝ohn Riedl, Joseph A.Konstan锛�

瀵嗚タ鏍瑰ぇ瀛︼紙Paul Resnick锛�

鍗″唴鍩烘闅嗗ぇ瀛�锛圝aimeCallan锛�

寰蒋鐮旂┒闄紙Ryen W.White锛�

绾界害澶у锛圓lexander Tuzhilin锛�

鐧惧垎鐐圭鎶�鍥㈤槦锛圔aifendian锛�

璇嶆潯鍥惧唽鏇村鍥惧唽


璇嶆潯鍥剧墖(7)


鍙傝�冭祫鏂�

路聽1.鐢靛瓙鍟嗗姟锛庣煡缃慬寮曠敤鏃ユ湡2017-04-01]

路聽2.淇℃伅瓒呰浇锛庣煡缃慬寮曠敤鏃ユ湡2017-04-01]

路聽3.鎺ㄨ崘绯荤粺锛庣煡缃慬寮曠敤鏃ユ湡2017-04-01]

路聽4.淇℃伅杩囨护锛庣煡缃慬寮曠敤鏃ユ湡2017-04-01]

鍥炲綊鍒嗘瀽

鍥炲綊鍒嗘瀽

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涓枃鍚�

鍥炲綊鍒嗘瀽

澶栨枃鍚�

regression analysis

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搴旂敤

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姝ラ

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缂栬緫

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鏂规硶

缂栬緫


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瀹冩槸鏈�涓轰汉鐔熺煡鐨勫缓妯℃妧鏈箣涓�銆傜嚎鎬у洖褰掗�氬父鏄汉浠湪瀛︿範棰勬祴妯″瀷鏃堕閫夌殑鎶�鏈箣涓�銆傚湪杩欑鎶�鏈腑锛屽洜鍙橀噺鏄繛缁殑锛岃嚜鍙橀噺鍙互鏄繛缁殑涔熷彲浠ユ槸绂绘暎鐨勶紝鍥炲綊绾跨殑鎬ц川鏄嚎鎬х殑銆�

绾挎�у洖褰掍娇鐢ㄦ渶浣崇殑鎷熷悎鐩寸嚎锛堜篃灏辨槸鍥炲綊绾匡級鍦ㄥ洜鍙橀噺锛圷锛夊拰涓�涓垨澶氫釜鑷彉閲忥紙X锛変箣闂村缓绔嬩竴绉嶅叧绯汇��

澶氬厓绾挎�у洖褰掑彲琛ㄧず涓篩=a+b1*X +b2*X2+ e锛屽叾涓璦琛ㄧず鎴窛锛宐琛ㄧず鐩寸嚎鐨勬枩鐜囷紝e鏄宸」銆傚鍏冪嚎鎬у洖褰掑彲浠ユ牴鎹粰瀹氱殑棰勬祴鍙橀噺锛坰锛夋潵棰勬祴鐩爣鍙橀噺鐨勫�笺��

2.Logistic Regression閫昏緫鍥炲綊

閫昏緫鍥炲綊鏄敤鏉ヨ绠椻�滀簨浠�=Success鈥濆拰鈥滀簨浠�=Failure鈥濈殑姒傜巼銆傚綋鍥犲彉閲忕殑绫诲瀷灞炰簬浜屽厓锛�1 / 0锛岀湡/鍋囷紝鏄�/鍚︼級鍙橀噺鏃讹紝鎴戜滑灏卞簲璇ヤ娇鐢ㄩ�昏緫鍥炲綊銆傝繖閲岋紝Y鐨勫�间负0鎴�1锛屽畠鍙互鐢ㄤ笅鏂圭▼琛ㄧず銆�

odds= p/ (1-p) = probability of event occurrence / probability of not event occurrence

ln(odds) = ln(p/(1-p))

logit(p) = ln(p/(1-p)) =b0+b1X1+b2X2+b3X3....+bkXk

涓婅堪寮忓瓙涓紝p琛ㄨ堪鍏锋湁鏌愪釜鐗瑰緛鐨勬鐜囥�備綘搴旇浼氶棶杩欐牱涓�涓棶棰橈細鈥滄垜浠负浠�涔堣鍦ㄥ叕寮忎腑浣跨敤瀵规暟log鍛紵鈥濄��

鍥犱负鍦ㄨ繖閲屾垜浠娇鐢ㄧ殑鏄殑浜岄」鍒嗗竷锛堝洜鍙橀噺锛夛紝鎴戜滑闇�瑕侀�夋嫨涓�涓浜庤繖涓垎甯冩渶浣崇殑杩炵粨鍑芥暟銆傚畠灏辨槸Logit鍑芥暟銆傚湪涓婅堪鏂圭▼涓紝閫氳繃瑙傛祴鏍锋湰鐨勬瀬澶т技鐒朵及璁″�兼潵閫夋嫨鍙傛暟锛岃�屼笉鏄渶灏忓寲骞虫柟鍜岃宸紙濡傚湪鏅�氬洖褰掍娇鐢ㄧ殑锛夈��

3. Polynomial Regression澶氶」寮忓洖褰�

瀵逛簬涓�涓洖褰掓柟绋嬶紝濡傛灉鑷彉閲忕殑鎸囨暟澶т簬1锛岄偅涔堝畠灏辨槸澶氶」寮忓洖褰掓柟绋嬨�傚涓嬫柟绋嬫墍绀猴細

y=a+b*x^2

鍦ㄨ繖绉嶅洖褰掓妧鏈腑锛屾渶浣虫嫙鍚堢嚎涓嶆槸鐩寸嚎銆傝�屾槸涓�涓敤浜庢嫙鍚堟暟鎹偣鐨勬洸绾裤��

4. Stepwise Regression閫愭鍥炲綊

鍦ㄥ鐞嗗涓嚜鍙橀噺鏃讹紝鎴戜滑鍙互浣跨敤杩欑褰㈠紡鐨勫洖褰掋�傚湪杩欑鎶�鏈腑锛岃嚜鍙橀噺鐨勯�夋嫨鏄湪涓�涓嚜鍔ㄧ殑杩囩▼涓畬鎴愮殑锛屽叾涓寘鎷潪浜轰负鎿嶄綔銆�

杩欎竴澹妇鏄�氳繃瑙傚療缁熻鐨勫�硷紝濡俁-square锛宼-stats鍜孉IC鎸囨爣锛屾潵璇嗗埆閲嶈鐨勫彉閲忋�傞�愭鍥炲綊閫氳繃鍚屾椂娣诲姞/鍒犻櫎鍩轰簬鎸囧畾鏍囧噯鐨勫崗鍙橀噺鏉ユ嫙鍚堟ā鍨嬨�備笅闈㈠垪鍑轰簡涓�浜涙渶甯哥敤鐨勯�愭鍥炲綊鏂规硶锛�

鏍囧噯閫愭鍥炲綊娉曞仛涓や欢浜嬫儏銆傚嵆澧炲姞鍜屽垹闄ゆ瘡涓楠ゆ墍闇�鐨勯娴嬨��

鍚戝墠閫夋嫨娉曚粠妯″瀷涓渶鏄捐憲鐨勯娴嬪紑濮嬶紝鐒跺悗涓烘瘡涓�姝ユ坊鍔犲彉閲忋��

鍚戝悗鍓旈櫎娉曚笌妯″瀷鐨勬墍鏈夐娴嬪悓鏃跺紑濮嬶紝鐒跺悗鍦ㄦ瘡涓�姝ユ秷闄ゆ渶灏忔樉钁楁�х殑鍙橀噺銆�

杩欑寤烘ā鎶�鏈殑鐩殑鏄娇鐢ㄦ渶灏戠殑棰勬祴鍙橀噺鏁版潵鏈�澶у寲棰勬祴鑳藉姏銆傝繖涔熸槸澶勭悊楂樼淮鏁版嵁闆嗙殑鏂规硶涔嬩竴銆俒2]

5. Ridge Regression宀洖褰�

褰撴暟鎹箣闂村瓨鍦ㄥ閲嶅叡绾挎�э紙鑷彉閲忛珮搴︾浉鍏筹級鏃讹紝灏遍渶瑕佷娇鐢ㄥ箔鍥炲綊鍒嗘瀽銆傚湪瀛樺湪澶氶噸鍏辩嚎鎬ф椂锛屽敖绠℃渶灏忎簩涔樻硶锛圤LS锛夋祴寰楃殑浼拌鍊间笉瀛樺湪鍋忓樊锛屽畠浠殑鏂瑰樊涔熶細寰堝ぇ锛屼粠鑰屼娇寰楄娴嬪�间笌鐪熷疄鍊肩浉宸敋杩溿�傚箔鍥炲綊閫氳繃缁欏洖褰掍及璁″�兼坊鍔犱竴涓亸宸�硷紝鏉ラ檷浣庢爣鍑嗚宸��

鍦ㄧ嚎鎬х瓑寮忎腑锛岄娴嬭宸彲浠ュ垝鍒嗕负聽2聽涓垎閲忥紝涓�涓槸鍋忓樊閫犳垚鐨勶紝涓�涓槸鏂瑰樊閫犳垚鐨勩�傞娴嬭宸彲鑳戒細鐢辫繖涓よ�呮垨涓よ�呬腑鐨勪换浣曚竴涓�犳垚銆傚湪杩欓噷锛屾垜浠皢璁ㄨ鐢辨柟宸墍閫犳垚鐨勮宸�偮燵2]聽

宀洖褰掗�氳繃鏀剁缉鍙傛暟位锛坙ambda锛夎В鍐冲閲嶅叡绾挎�ч棶棰樸�傝鐪嬩笅闈㈢殑绛夊紡锛�

L2=argmin||y=x尾||


+位||尾||



鍦ㄨ繖涓叕寮忎腑锛屾湁涓や釜缁勬垚閮ㄥ垎銆傜涓�涓槸鏈�灏忎簩涔橀」锛屽彟涓�涓槸尾-骞虫柟鐨勎诲�嶏紝鍏朵腑尾鏄浉鍏崇郴鏁板悜閲忥紝涓庢敹缂╁弬鏁颁竴璧锋坊鍔犲埌鏈�灏忎簩涔橀」涓互寰楀埌涓�涓潪甯镐綆鐨勬柟宸��

6. Lasso Regression濂楃储鍥炲綊

瀹冪被浼间簬宀洖褰掞紝Lasso聽锛圠east Absolute Shrinkage and Selection Operator锛変篃浼氬氨鍥炲綊绯绘暟鍚戦噺缁欏嚭鎯╃綒鍊奸」銆傛澶栵紝瀹冭兘澶熷噺灏戝彉鍖栫▼搴﹀苟鎻愰珮绾挎�у洖褰掓ā鍨嬬殑绮惧害銆傜湅鐪嬩笅闈㈢殑鍏紡锛�

L1=agrmin||y-x尾||


+位||尾||


Lasso聽鍥炲綊涓嶳idge鍥炲綊鏈変竴鐐逛笉鍚岋紝瀹冧娇鐢ㄧ殑鎯╃綒鍑芥暟鏄疞1鑼冩暟锛岃�屼笉鏄疞2鑼冩暟銆傝繖瀵艰嚧鎯╃綒锛堟垨绛変簬绾︽潫浼拌鐨勭粷瀵瑰�间箣鍜岋級鍊间娇涓�浜涘弬鏁颁及璁$粨鏋滅瓑浜庨浂銆備娇鐢ㄦ儵缃氬�艰秺澶э紝杩涗竴姝ヤ及璁′細浣垮緱缂╁皬鍊艰秺瓒嬭繎浜庨浂銆傝繖灏嗗鑷存垜浠浠庣粰瀹氱殑n涓彉閲忎腑閫夋嫨鍙橀噺銆�

濡傛灉棰勬祴鐨勪竴缁勫彉閲忔槸楂樺害鐩稿叧鐨勶紝Lasso聽浼氶�夊嚭鍏朵腑涓�涓彉閲忓苟涓斿皢鍏跺畠鐨勬敹缂╀负闆躲��

7.ElasticNet鍥炲綊

ElasticNet鏄疞asso鍜孯idge鍥炲綊鎶�鏈殑娣峰悎浣撱�傚畠浣跨敤L1鏉ヨ缁冨苟涓擫2浼樺厛浣滀负姝e垯鍖栫煩闃点�傚綋鏈夊涓浉鍏崇殑鐗瑰緛鏃讹紝ElasticNet鏄緢鏈夌敤鐨勩�侺asso聽浼氶殢鏈烘寫閫変粬浠叾涓殑涓�涓紝鑰孍lasticNet鍒欎細閫夋嫨涓や釜銆�


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瀵逛簬缁忛獙鍥炲綊鏂圭▼锛毬爕=0.857+0.836x

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浣滆��

璐瑰皵寰锋浖

ISBN

9787115205353

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鍑虹増鏃堕棿

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鍐崇瓥鏍戠殑鍓灊

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浼樼偣

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缂虹偣

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3濡傛灉璁粌闆嗕腑鐨勬墍鏈夎褰曢兘灞炰簬鍚屼竴涓被鍒紝鍒欎互璇ョ被鍒爣璁拌妭鐐筃

4濡傛灉鍊欓�夊睘鎬т负绌猴紝鍒欒繑鍥濶浣滀负鍙惰妭鐐癸紝鏍囪涓鸿缁冮泦涓渶鏅�氱殑绫伙紱

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6if聽鍊欓�夊睘鎬ф槸杩炵画鐨則hen

7瀵硅灞炴�ц繘琛岀鏁e寲

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9鏍囪鑺傜偣N涓哄睘鎬

10for each聽灞炴�鐨勪竴鑷村�糳

11鐢�鑺傜偣N闀垮嚭涓�涓潯浠朵负D=d鐨勫垎鏀�

12璁緎鏄缁冮泦涓璂=d鐨勮缁冩牱鏈殑闆嗗悎

13if s涓虹┖

14鍔犱笂涓�涓爲鍙讹紝鏍囪涓鸿缁冮泦涓渶鏅�氱殑绫�

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