锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#19968;&#21306;&#20108;&#21306;&#19977;&#21306;&#22269;&#20135;&#30423;&#25668;&#44;&#20037;&#20037;&#20037;&#20037;&#20037;&#39640;&#28526;&#22269;&#20135;&#31934;&#21697;&#35270;&#44;&#19968;&#21306;&#20108;&#21306;&#22269;&#20135;&#31934;&#21697;</title><link>http://www.shnenglu.com/elva/category/15274.html</link><description /><language>zh-cn</language><lastBuildDate>Tue, 02 Nov 2010 22:36:36 GMT</lastBuildDate><pubDate>Tue, 02 Nov 2010 22:36:36 GMT</pubDate><ttl>60</ttl><item><title>QuickSort</title><link>http://www.shnenglu.com/elva/archive/2010/11/02/132155.html</link><dc:creator>鍙跺瓙</dc:creator><author>鍙跺瓙</author><pubDate>Tue, 02 Nov 2010 08:24:00 GMT</pubDate><guid>http://www.shnenglu.com/elva/archive/2010/11/02/132155.html</guid><wfw:comment>http://www.shnenglu.com/elva/comments/132155.html</wfw:comment><comments>http://www.shnenglu.com/elva/archive/2010/11/02/132155.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/elva/comments/commentRss/132155.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/elva/services/trackbacks/132155.html</trackback:ping><description><![CDATA[蹇�熸帓搴?QuickSort)
<div>1銆佺畻娉曟�濇兂 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�蹇�熸帓搴忔槸C.R.A.Hoare浜?962騫存彁鍑虹殑涓�縐嶅垝鍒嗕氦鎹㈡帓搴忋�傚畠閲囩敤浜嗕竴縐嶅垎娌葷殑絳栫暐錛岄�氬父縐板叾涓哄垎娌繪硶(Divide-and-ConquerMethod)銆?</div>
<div>錛?錛?nbsp;&nbsp; 鍒嗘不娉曠殑鍩烘湰鎬濇兂 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鍒嗘不娉曠殑鍩烘湰鎬濇兂鏄細(xì)灝嗗師闂鍒嗚В涓鴻嫢騫蹭釜瑙勬ā鏇村皬浣嗙粨鏋勪笌鍘熼棶棰樼浉浼肩殑瀛愰棶棰樸�傞�掑綊鍦拌В榪欎簺瀛愰棶棰橈紝鐒跺悗灝嗚繖浜涘瓙闂鐨勮В緇勫悎涓哄師闂鐨勮В銆?</div>
<div>錛?錛夊揩閫熸帓搴忕殑鍩烘湰鎬濇兂 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�璁懼綋鍓嶅緟鎺掑簭鐨勬棤搴忓尯涓篟[low..high]錛屽埄鐢ㄥ垎娌繪硶鍙皢蹇�熸帓搴忕殑鍩烘湰鎬濇兂鎻忚堪涓猴細(xì) <br>鈶犲垎瑙ｏ細(xì)&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鍦≧[low..high]涓換閫変竴涓褰曚綔涓哄熀鍑?Pivot)錛屼互姝ゅ熀鍑嗗皢褰撳墠鏃犲簭鍖哄垝鍒嗕負(fù)宸︺�佸彸涓や釜杈冨皬鐨勫瓙鍖洪棿R[low..pivotpos-1)鍜孯[pivotpos+1..high]錛屽茍浣垮乏杈瑰瓙鍖洪棿涓墍鏈夎褰曠殑鍏抽敭瀛楀潎灝忎簬絳変簬鍩哄噯璁板綍(涓嶅Θ璁頒負(fù)pivot)鐨勫叧閿瓧pivot.key錛屽彸杈圭殑瀛愬尯闂翠腑鎵�鏈夎褰曠殑鍏抽敭瀛楀潎澶т簬絳変簬pivot.key錛岃�屽熀鍑嗚褰昿ivot鍒欎綅浜庢紜殑浣嶇疆(pivotpos)涓婏紝瀹冩棤欏誨弬鍔犲悗緇殑鎺掑簭銆?<br>&nbsp;&nbsp;&nbsp; 娉ㄦ剰錛?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鍒掑垎鐨勫叧閿槸瑕佹眰鍑哄熀鍑嗚褰曟墍鍦ㄧ殑浣嶇疆pivotpos銆傚垝鍒嗙殑緇撴灉鍙互綆�鍗曞湴琛ㄧず涓?娉ㄦ剰pivot=R[pivotpos])錛?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�R[low..pivotpos-1].keys&#8804;R[pivotpos].key&#8804;R[pivotpos+1..high].keys <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 鍏朵腑low&#8804;pivotpos&#8804;high銆?<br>鈶℃眰瑙ｏ細(xì)&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�&nbsp;&nbsp; 閫氳繃閫掑綊璋冪敤蹇�熸帓搴忓宸︺�佸彸瀛愬尯闂碦[low..pivotpos-1]鍜孯[pivotpos+1..high]蹇�熸帓搴忋�?<br>鈶㈢粍鍚堬細(xì)&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鍥犱負(fù)褰?"姹傝В "姝ラ涓殑涓や釜閫掑綊璋冪敤緇撴潫鏃訛紝鍏跺乏銆佸彸涓や釜瀛愬尯闂村凡鏈夊簭銆傚蹇�熸帓搴忚�岃█錛?"緇勫悎 "姝ラ鏃犻』鍋氫粈涔堬紝鍙湅浣滄槸絀烘搷浣溿�?</div>
<div>2銆佸揩閫熸帓搴忕畻娉昋uickSort <br>&nbsp;&nbsp;&nbsp; void&nbsp;&nbsp; QuickSort(SeqList&nbsp;&nbsp; R錛宨nt&nbsp;&nbsp; low錛宨nt&nbsp;&nbsp; high) <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {&nbsp;&nbsp; //瀵筊[low..high]蹇�熸帓搴?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int&nbsp;&nbsp; pivotpos錛?nbsp;&nbsp; //鍒掑垎鍚庣殑鍩哄噯璁板綍鐨勪綅緗?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if(low &lt;high){//浠呭綋鍖洪棿闀垮害澶т簬1鏃舵墠欏繪帓搴?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; pivotpos=Partition(R錛宭ow錛宧igh)錛?nbsp;&nbsp; //瀵筊[low..high]鍋氬垝鍒?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; QuickSort(R錛宭ow錛宲ivotpos-1)錛?nbsp;&nbsp; //瀵瑰乏鍖洪棿閫掑綊鎺掑簭 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; QuickSort(R錛宲ivotpos+1錛宧igh)錛?nbsp;&nbsp; //瀵瑰彸鍖洪棿閫掑綊鎺掑簭 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }&nbsp;&nbsp; //QuickSort </div>
<div>&nbsp;&nbsp;&nbsp; 娉ㄦ剰錛?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�涓烘帓搴忔暣涓枃浠訛紝鍙』璋冪敤QuickSort(R錛?錛宯)鍗沖彲瀹屾垚瀵筊[l..n]鐨勬帓搴忋�?nbsp;&nbsp; </div>
<div><br>涓婁竴欏?nbsp;&nbsp; 涓嬩竴欏?nbsp;&nbsp; </div>
<div>3銆佸垝鍒嗙畻娉昉artition <br>錛?錛?nbsp;&nbsp; 綆�鍗曠殑鍒掑垎鏂規(guī)硶 <br>鈶?nbsp;&nbsp; 鍏蜂綋鍋氭硶 <br>銆�銆�絎竴姝ワ細(xì)(鍒濆鍖?璁劇疆涓や釜鎸囬拡i鍜宩錛屽畠浠殑鍒濆�煎垎鍒負(fù)鍖洪棿鐨勪笅鐣屽拰涓婄晫錛屽嵆i=low錛宨=high錛涢�夊彇鏃犲簭鍖虹殑絎竴涓褰昍[i](鍗砇[low])浣滀負(fù)鍩哄噯璁板綍錛屽茍灝嗗畠淇濆瓨鍦ㄥ彉閲弍ivot涓紱 <br>銆�銆�絎簩姝ワ細(xì)浠鑷猦igh璧峰悜宸︽壂鎻忥紝鐩村埌鎵懼埌絎?涓叧閿瓧灝忎簬pivot.key鐨勮褰昍[j]錛屽皢R[j])縐昏嚦i鎵�鎸囩殑浣嶇疆涓婏紝榪欑浉褰撲簬R[j]鍜屽熀鍑哛[i](鍗硃ivot)榪涜浜嗕氦鎹紝浣垮叧閿瓧灝忎簬鍩哄噯鍏抽敭瀛梡ivot.key鐨勮褰曠Щ鍒頒簡鍩哄噯鐨勫乏杈癸紝浜ゆ崲鍚嶳[j]涓浉褰撲簬鏄痯ivot錛涚劧鍚庯紝浠鎸囬拡鑷猧+1浣嶇疆寮�濮嬪悜鍙蟲壂鎻忥紝鐩磋嚦鎵懼埌絎?涓叧閿瓧澶т簬pivot.key鐨勮褰昍[i]錛屽皢R[i]縐誨埌i鎵�鎸囩殑浣嶇疆涓婏紝榪欑浉褰撲簬浜ゆ崲浜哛[i]鍜屽熀鍑哛[j]錛屼嬌鍏抽敭瀛楀ぇ浜庡熀鍑嗗叧閿瓧鐨勮褰曠Щ鍒頒簡鍩哄噯鐨勫彸杈癸紝浜ゆ崲鍚嶳[i]涓張鐩稿綋浜庡瓨鏀句簡pivot錛涙帴鐫�浠ゆ寚閽坖鑷綅緗甹-1寮�濮嬪悜宸︽壂鎻忥紝濡傛浜ゆ浛鏀瑰彉鎵弿鏂瑰悜錛屼粠涓ょ鍚勮嚜寰�涓棿闈犳嫝錛岀洿鑷砳=j鏃訛紝i渚挎槸鍩哄噯pivot鏈�緇堢殑浣嶇疆錛屽皢pivot鏀懼湪姝や綅緗笂灝卞畬鎴愪簡涓�嬈″垝鍒嗐�?</div>
<div>鈶′竴嬈″垝鍒嗚繃紼?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�涓�嬈″垝鍒嗚繃紼嬩腑錛屽叿浣撳彉鍖栨儏鍐點(diǎn)�愬弬瑙佸姩鐢繪紨紺恒�?nbsp;&nbsp; </div>
<div>鈶㈠垝鍒嗙畻娉曪細(xì) <br>&nbsp;&nbsp;&nbsp; int&nbsp;&nbsp; Partition(SeqList&nbsp;&nbsp; R錛宨nt&nbsp;&nbsp; i錛宨nt&nbsp;&nbsp; j) <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {//璋冪敤Partition(R錛宭ow錛宧igh)鏃訛紝瀵筊[low..high]鍋氬垝鍒嗭紝 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //騫惰繑鍥炲熀鍑嗚褰曠殑浣嶇疆 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ReceType&nbsp;&nbsp; pivot=R[i]錛?nbsp;&nbsp; //鐢ㄥ尯闂寸殑絎?涓褰曚綔涓哄熀鍑?nbsp;&nbsp; ' <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; while(i &lt;j){&nbsp;&nbsp; //浠庡尯闂翠袱绔氦鏇垮悜涓棿鎵弿錛岀洿鑷砳=j涓烘 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; while(i &lt;j&amp;&amp;R[j].key&gt; =pivot.key)&nbsp;&nbsp; //pivot鐩稿綋浜庡湪浣嶇疆i涓?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; j--錛?nbsp;&nbsp; //浠庡彸鍚戝乏鎵弿錛屾煡鎵劇1涓叧閿瓧灝忎簬pivot.key鐨勮褰昍[j] <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if(i &lt;j)&nbsp;&nbsp; //琛ㄧず鎵懼埌鐨凴[j]鐨勫叧閿瓧 &lt;pivot.key <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; R[i++]=R[j]錛?nbsp;&nbsp; //鐩稿綋浜庝氦鎹[i]鍜孯[j]錛屼氦鎹㈠悗i鎸囬拡鍔? <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; while(i &lt;j&amp;&amp;R[i].key &lt;=pivot.key)&nbsp;&nbsp; //pivot鐩稿綋浜庡湪浣嶇疆j涓?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; i++錛?nbsp;&nbsp; //浠庡乏鍚戝彸鎵弿錛屾煡鎵劇1涓叧閿瓧澶т簬pivot.key鐨勮褰昍[i] <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if(i &lt;j)&nbsp;&nbsp; //琛ㄧず鎵懼埌浜哛[i]錛屼嬌R[i].key&gt; pivot.key <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; R[j--]=R[i];&nbsp;&nbsp; //鐩稿綋浜庝氦鎹[i]鍜孯[j]錛屼氦鎹㈠悗j鎸囬拡鍑? <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }&nbsp;&nbsp; //endwhile <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; R[i]=pivot錛?nbsp;&nbsp; //鍩哄噯璁板綍宸茶鏈�鍚庡畾浣?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return&nbsp;&nbsp; i錛?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }&nbsp;&nbsp; //partition&nbsp;&nbsp; </div>
<div><br>4銆佸揩閫熸帓搴忔墽琛岃繃紼?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�蹇�熸帓搴忔墽琛岀殑鍏ㄨ繃紼嬪彲鐢ㄩ�掑綊鏍?wèi)鏉ユ弿杩般�?<br>錛堝浘鐪佺暐錛?<br>鍒嗘瀽錛?nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�錛?錛夐�掑綊鎵ц鐨勮礬綰垮鍥句腑甯︾澶寸殑鍖呯粶綰挎墍紺恒�?<br>銆�&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 錛?錛?nbsp;&nbsp; 閫掑綊鏍?wèi)涓婃瘡涓�緇撶偣宸︽梺鏂規(guī)嫭鍙瘋〃紺哄綋鍓嶅緟鎺掑簭鐨勫尯闂達(dá)紝緇撶偣鍐呯殑鍏抽敭瀛楁槸鍒掑垎鐨勫熀鍑嗗叧閿瓧 <br>&nbsp;&nbsp;&nbsp; 娉ㄦ剰錛?<br>銆�&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 鍙剁粨鐐瑰搴旂殑瀛愬尯闂村彧鏈変竴涓叧閿瓧錛屾棤欏誨垝鍒嗭紝鏁呭彾緇撶偣鍐呮病鏈夊熀鍑嗗叧閿瓧 <br>銆�銆�錛?錛?nbsp;&nbsp; 鍒掑垎鍚庡緱鍒扮殑宸︺�佸彸涓や釜瀛愬尯闂村垎鍒爣鍦ㄨ緇撶偣鐨勫乏銆佸彸涓や釜瀛╁瓙緇撶偣鐨勫乏杈規(guī)柟鎷彿鍐呫�?<br>銆愪緥銆戞牴緇撶偣宸︽梺鏂規(guī)嫭鍙穂49錛?8錛?5錛?7錛?6錛?3錛?7錛?9]琛ㄧず鍒濆寰呮帓搴忕殑鍏抽敭瀛楋紝鏍瑰唴鐨?9琛ㄧず鎵�閫夌殑鍒掑垎鍩哄噯璁板綍鐨勫叧閿瓧錛屽垝鍒嗙粨鏋滄槸[27錛?8錛?3]49[76錛?7錛?5錛?9_]錛屽叾宸﹀彸瀛愬尯闂村垎鍒爣鍦ㄦ牴緇撶偣鐨勪袱涓瀛愮殑宸﹁竟銆?<br>銆�&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 錛?錛?nbsp;&nbsp; 姣忎釜鍒嗘敮緇撶偣鍙蟲梺鍦嗘嫭鍙蜂腑鐨勫唴瀹硅〃紺哄璇ョ粨鐐瑰乏鏃佸尯闂寸殑鎺掑簭榪囩▼緇撴潫涔嬪悗榪斿洖鐨勭粨鏋溿�傚畠鏄叾宸﹀彸瀛╁瓙瀵瑰簲鐨勫尯闂存帓搴忓畬鎴愪箣鍚庯紝灝嗗乏鍙沖瀛愬搴旂殑鎺掑簭緇撴灉鍒嗗埆鏀懼湪璇ュ垎鏀粨鐐圭殑鍏抽敭瀛楀墠鍚庢墍寰楀埌鐨勫叧閿瓧搴忓垪銆?<br>銆愪緥銆戝垎鏀粨鐐?6鐨勫乏鍙沖瀛愬搴旂殑鍖洪棿鎺掑簭鍚庣殑緇撴灉鍒嗗埆鏄?49_錛?5)鍜?97)錛屽皢瀹冧滑鍒嗗埆鏀懼湪76鐨勫墠鍚庡嵆寰?49錛?5錛?6錛?7)錛岃繖鏄緇撶偣76宸︽梺鍖洪棿[76錛?7錛岋紝65錛?9]鎺掑簭鐨勭粨鏋溿�?<br>銆�&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 錛?錛?nbsp;&nbsp; 綆楁硶鐨勬墽琛岄『搴忔槸閫掑綊鏍?wèi)涓殑绠ご椤哄簭锛屽疄闄呬笂褰撴妸鍒掑垎鎿嶄綔瑙嗕给櫘块棶缁撶偣鐨勬搷浣滄椨灱屽揩閫熸帓搴忕殑鎵ц榪囩▼鐩稿綋浜庢槸鍏堝簭閬嶅巻鍏墮�掑綊鏍?wèi)銆?<br>&nbsp;&nbsp;&nbsp; 娉ㄦ剰錛?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�浠諱綍閫掑綊綆楁硶鍧囧彲鐢ㄩ�掑綊鏍?wèi)鏉ユ弿杩板叾鎵ц杩嚱E嬨�?</div>
<div>5銆佸揩閫熸帓搴忓悇嬈″垝鍒嗗悗鐨勭姸鎬佸彉鍖?<br>[49&nbsp;&nbsp; 38&nbsp;&nbsp; 65&nbsp;&nbsp; 97&nbsp;&nbsp; 76&nbsp;&nbsp; 13&nbsp;&nbsp; 27&nbsp;&nbsp; 49]&nbsp;&nbsp; //鍒濆鍏抽敭瀛?<br>[27&nbsp;&nbsp; 38&nbsp;&nbsp; 13]&nbsp;&nbsp; 49&nbsp;&nbsp; [76&nbsp;&nbsp; 97&nbsp;&nbsp; 65&nbsp;&nbsp; 49]&nbsp;&nbsp; //絎?嬈″垝鍒嗗畬鎴愪箣鍚庯紝瀵瑰簲閫掑綊鏍?wèi)绗?灞?<br>[13]&nbsp;&nbsp; 27&nbsp;&nbsp; [38]&nbsp;&nbsp; 49&nbsp;&nbsp; [49&nbsp;&nbsp; 65]&nbsp;&nbsp; 76&nbsp;&nbsp; [97]&nbsp;&nbsp; //瀵逛笂涓�灞傚悇鏃犲簭鍖哄垝鍒嗗畬鎴愬悗錛屽搴旈�掑綊鏍?wèi)绗?灞?<br>13&nbsp;&nbsp; 27&nbsp;&nbsp; 38&nbsp;&nbsp; 49&nbsp;&nbsp; 49&nbsp;&nbsp; [65]&nbsp;&nbsp; 76&nbsp;&nbsp; 97&nbsp;&nbsp; //瀵逛笂涓�灞傚悇鏃犲簭鍖哄垝鍒嗗畬鎴愬悗錛屽搴旈�掑綊鏍?wèi)绗?灞?<br>13&nbsp;&nbsp; 27&nbsp;&nbsp; 38&nbsp;&nbsp; 49&nbsp;&nbsp; 49&nbsp;&nbsp; 65&nbsp;&nbsp; 76&nbsp;&nbsp; 97&nbsp;&nbsp; //鏈�鍚庣殑鎺掑簭緇撴灉 </div>
<div>6銆佺畻娉曞垎鏋?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�蹇�熸帓搴忕殑鏃墮棿涓昏鑰楄垂鍦ㄥ垝鍒嗘搷浣滀笂錛屽闀垮害涓簁鐨勫尯闂磋繘琛屽垝鍒嗭紝鍏遍渶k-1嬈″叧閿瓧鐨勬瘮杈冦�?</div>
<div>錛?錛夋渶鍧忔椂闂村鏉傚害 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鏈�鍧忔儏鍐墊槸姣忔鍒掑垎閫夊彇鐨勫熀鍑嗛兘鏄綋鍓嶆棤搴忓尯涓叧閿瓧鏈�灝?鎴栨渶澶?鐨勮褰曪紝鍒掑垎鐨勭粨鏋滄槸鍩哄噯宸﹁竟鐨勫瓙鍖洪棿涓虹┖(鎴栧彸杈圭殑瀛愬尯闂翠負(fù)絀?錛岃�屽垝鍒嗘墍寰楃殑鍙︿竴涓潪絀虹殑瀛愬尯闂翠腑璁板綍鏁扮洰錛屼粎浠呮瘮鍒掑垎鍓嶇殑鏃犲簭鍖轟腑璁板綍涓暟鍑忓皯涓�涓�?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鍥犳錛屽揩閫熸帓搴忓繀欏誨仛n-1嬈″垝鍒嗭紝絎琲嬈″垝鍒嗗紑濮嬫椂鍖洪棿闀垮害涓簄-i+1錛屾墍闇�鐨勬瘮杈冩鏁頒負(fù)n-i(1&#8804;i&#8804;n-1)錛屾晠鎬葷殑姣旇緝嬈℃暟杈懼埌鏈�澶у�鹼細(xì) <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cmax&nbsp;&nbsp; =&nbsp;&nbsp; n(n-1)/2=O(n2) <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�濡傛灉鎸変笂闈㈢粰鍑虹殑鍒掑垎綆楁硶錛屾瘡嬈″彇褰撳墠鏃犲簭鍖虹殑絎?涓褰曚負(fù)鍩哄噯錛岄偅涔堝綋鏂囦歡鐨勮褰曞凡鎸夐�掑搴?鎴栭�掑噺搴?鎺掑垪鏃訛紝姣忔鍒掑垎鎵�鍙栫殑鍩哄噯灝辨槸褰撳墠鏃犲簭鍖轟腑鍏抽敭瀛楁渶灝?鎴栨渶澶?鐨勮褰曪紝鍒欏揩閫熸帓搴忔墍闇�鐨勬瘮杈冩鏁板弽鑰屾渶澶氥�?</div>
<div>錛?錛?nbsp;&nbsp; 鏈�濂芥椂闂村鏉傚害 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鍦ㄦ渶濂芥儏鍐典笅錛屾瘡嬈″垝鍒嗘墍鍙栫殑鍩哄噯閮芥槸褰撳墠鏃犲簭鍖虹殑 "涓�?"璁板綍錛屽垝鍒嗙殑緇撴灉鏄熀鍑嗙殑宸︺�佸彸涓や釜鏃犲簭瀛愬尯闂寸殑闀垮害澶ц嚧鐩哥瓑銆傛�葷殑鍏抽敭瀛楁瘮杈冩鏁幫細(xì) <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0(nlgn) <br>娉ㄦ剰錛?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鐢ㄩ�掑綊鏍?wèi)鏉ュ垎鏋愭渶濂芥儏鍐典笅鐨勬瘮杈冩鏁版洿綆�鍗曘�傚洜涓烘瘡嬈″垝鍒嗗悗宸︺�佸彸瀛愬尯闂撮暱搴﹀ぇ鑷寸浉絳夛紝鏁呴�掑綊鏍?wèi)鐨勯珮搴︿负O(lgn)錛岃�岄�掑綊鏍?wèi)姣忎竴灞備笂鍚勭粨鐐規(guī)墍瀵瑰簲鐨勫垝鍒嗚繃紼嬩腑鎵�闇�瑕佺殑鍏抽敭瀛楁瘮杈冩鏁版�誨拰涓嶈秴榪噉錛屾晠鏁翠釜鎺掑簭榪囩▼鎵�闇�瑕佺殑鍏抽敭瀛楁瘮杈冩�繪鏁癈(n)=O(nlgn)銆?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鍥犱負(fù)蹇�熸帓搴忕殑璁板綍縐誨姩嬈℃暟涓嶅ぇ浜庢瘮杈冪殑嬈℃暟錛屾墍浠ュ揩閫熸帓搴忕殑鏈�鍧忔椂闂村鏉傚害搴斾負(fù)0(n2)錛屾渶濂芥椂闂村鏉傚害涓篛(nlgn)銆?</div>
<div>錛?錛夊熀鍑嗗叧閿瓧鐨勯�夊彇 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�鍦ㄥ綋鍓嶆棤搴忓尯涓�夊彇鍒掑垎鐨勫熀鍑嗗叧閿瓧鏄喅瀹氱畻娉曟�ц兘鐨勫叧閿�?<br>銆�銆�鈶?"涓夎�呭彇涓?"鐨勮鍒?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆� "涓夎�呭彇涓?"瑙勫垯錛屽嵆鍦ㄥ綋鍓嶅尯闂撮噷錛屽皢璇ュ尯闂撮銆佸熬鍜屼腑闂翠綅緗笂鐨勫叧閿瓧姣旇緝錛屽彇涓夎�呬箣涓�兼墍瀵瑰簲鐨勮褰曚綔涓哄熀鍑嗭紝鍦ㄥ垝鍒嗗紑濮嬪墠灝嗚鍩哄噯璁板綍鍜岃鍖轟己鐨勭1涓褰曡繘琛屼氦鎹紝姝ゅ悗鐨勫垝鍒嗚繃紼嬩笌涓婇潰鎵�緇欑殑Partition綆楁硶瀹屽叏鐩稿悓銆?</div>
<div>銆�銆�鈶″彇浣嶄簬low鍜宧igh涔嬮棿鐨勯殢鏈烘暟k(low&#8804;k&#8804;high)錛岀敤R[k]浣滀負(fù)鍩哄噯 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�閫夊彇鍩哄噯鏈�濂界殑鏂規(guī)硶鏄敤涓�涓殢鏈哄嚱鏁頒駭鐢熶竴涓彇浣嶄簬low鍜宧igh涔嬮棿鐨勯殢鏈烘暟k(low&#8804;k&#8804;high)錛岀敤R[k]浣滀負(fù)鍩哄噯錛岃繖鐩稿綋浜庡己榪玆[low..high]涓殑璁板綍鏄殢鏈哄垎甯冪殑銆傜敤姝ゆ柟娉曟墍寰楀埌鐨勫揩閫熸帓搴忎竴鑸О涓洪殢鏈虹殑蹇�熸帓搴忋�傚叿浣撶畻娉曘�愬弬瑙佹暀鏉愩�?<br>娉ㄦ剰錛?<br>銆�&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 闅忔満鍖栫殑蹇�熸帓搴忎笌涓�鑸殑蹇�熸帓搴忕畻娉曞樊鍒緢灝忋�備絾闅忔満鍖栧悗錛岀畻娉曠殑鎬ц兘澶уぇ鍦版彁楂樹簡錛屽挨鍏舵槸瀵瑰垵濮嬫湁搴忕殑鏂囦歡錛屼竴鑸笉鍙兘瀵艱嚧鏈�鍧忔儏鍐電殑鍙戠敓銆傜畻娉曠殑闅忔満鍖栦笉浠呬粎閫傜敤浜庡揩閫熸帓搴忥紝涔熼�傜敤浜庡叾瀹冮渶瑕佹暟鎹殢鏈哄垎甯冪殑綆楁硶銆?</div>
<div>錛?錛夊鉤鍧囨椂闂村鏉傚害 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�灝界蹇�熸帓搴忕殑鏈�鍧忔椂闂翠負(fù)O(n2)錛屼絾灝卞鉤鍧囨�ц兘鑰岃█錛屽畠鏄熀浜庡叧閿瓧姣旇緝鐨勫唴閮ㄦ帓搴忕畻娉曚腑閫熷害鏈�蹇�咃紝蹇�熸帓搴忎害鍥犳鑰屽緱鍚嶃�傚畠鐨勫鉤鍧囨椂闂村鏉傚害涓篛(nlgn)銆?</div>
<div>錛?錛夌┖闂村鏉傚害 <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�蹇�熸帓搴忓湪緋葷粺鍐呴儴闇�瑕佷竴涓爤鏉ュ疄鐜伴�掑綊銆傝嫢姣忔鍒掑垎杈冧負(fù)鍧囧寑錛屽垯鍏墮�掑綊鏍?wèi)鐨勯珮搴︿负O(lgn)錛屾晠閫掑綊鍚庨渶鏍堢┖闂翠負(fù)O(lgn)銆傛渶鍧忔儏鍐典笅錛岄�掑綊鏍?wèi)鐨勯珮搴︿负O(n)錛屾墍闇�鐨勬爤絀洪棿涓篛(n)銆?</div>
<div>錛?錛夌ǔ瀹氭�?<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 銆�蹇�熸帓搴忔槸闈炵ǔ瀹氱殑錛屼緥濡俒2錛?錛?]銆?</div>
<br><br>杞嚜錛?br><a >http://www.360doc.com/content/10/1025/15/4161063_63868950.shtml</a>
<img src ="http://www.shnenglu.com/elva/aggbug/132155.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/elva/" target="_blank">鍙跺瓙</a> 2010-11-02 16:24 <a href="http://www.shnenglu.com/elva/archive/2010/11/02/132155.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>shellsort涔嬩簩</title><link>http://www.shnenglu.com/elva/archive/2010/11/01/132021.html</link><dc:creator>鍙跺瓙</dc:creator><author>鍙跺瓙</author><pubDate>Mon, 01 Nov 2010 10:08:00 GMT</pubDate><guid>http://www.shnenglu.com/elva/archive/2010/11/01/132021.html</guid><wfw:comment>http://www.shnenglu.com/elva/comments/132021.html</wfw:comment><comments>http://www.shnenglu.com/elva/archive/2010/11/01/132021.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/elva/comments/commentRss/132021.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/elva/services/trackbacks/132021.html</trackback:ping><description><![CDATA[杞嚜錛?br><a >http://blog.sina.com.cn/s/blog_61e439e50100mfe8.html</a><br><br>
<p style="TEXT-INDENT: 21pt"><a name=OLE_LINK2></a><a name=OLE_LINK1><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">甯屽皵鎺掑簭</font></span><span lang=EN-US XML:LANG="EN-US">(shellsort)</span></span></a><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鍙堝彨澧為噺閫掑噺</font></span><span lang=EN-US XML:LANG="EN-US">(diminishing increment)</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鎺掑簭錛屾槸鐢?/font></span><span lang=EN-US XML:LANG="EN-US">D.L. Shell</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鍙戞槑鐨勶紝榪欎釜綆楁硶鏄�氳繃涓�涓�愭笎鍑忓皬鐨勫閲忎嬌涓�涓暟緇勯�愭笎瓚嬭繎浜庢湁搴忎粠鑰岃揪鍒版帓搴忕殑鐩殑錛岃綆楁硶鐢?/font></span><span lang=EN-US XML:LANG="EN-US">1959</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">騫村叕甯冦�?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鏈�宸椂闂村鏉傚害錛氭牴鎹闀垮簭鍒楃殑涓嶅悓鑰屼笉鍚屻�?/font></span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">宸茬煡鏈�濂界殑</font></span><span lang=EN-US XML:LANG="EN-US">: <span><em>O</em>(<em>n</em>log<sup><font size=2>2</font></sup><em>n</em>)</span></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鏈�浼樻椂闂村鏉傚害錛?/font></span><span lang=EN-US XML:LANG="EN-US">O(<em>n</em>)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">騫沖潎鏃墮棿澶嶆潅搴︼細(xì)鏍規(guī)嵁姝ラ暱搴忓垪鐨勪笉鍚岃�屼笉鍚屻�?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鍘熷鐨勭畻娉曞疄鐜板湪鏈�鍧忕殑鎯呭喌涓嬮渶瑕佽繘琛?/font></span><span lang=EN-US XML:LANG="EN-US">O(n2)</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鐨勬瘮杈冨拰浜ゆ崲銆?/font></span><span lang=EN-US XML:LANG="EN-US">V. Pratt</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鐨勪功</font></span><span lang=EN-US XML:LANG="EN-US">[1]</span></span></span> <span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">瀵圭畻娉曡繘琛屼簡灝戦噺淇敼錛屽彲浠ヤ嬌寰楁�ц兘鎻愬崌鑷?/font></span><span lang=EN-US XML:LANG="EN-US">O(n log2 n)</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">銆傝繖姣旀渶濂界殑姣旇緝綆楁硶鐨?/font></span><span lang=EN-US XML:LANG="EN-US">O(n log n)</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">瑕佸樊涓�浜涖�?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">甯屽皵鎺掑簭閫氳繃灝嗘瘮杈冪殑鍏ㄩ儴鍏冪礌鍒嗕負(fù)鍑犱釜鍖哄煙鏉ユ彁鍗囨彃鍏ユ帓搴忕殑鎬ц兘銆傝繖鏍峰彲浠ヨ涓�涓厓绱犲彲浠ヤ竴嬈℃�у湴鏈濇渶緇堜綅緗墠榪涗竴澶ф銆傜劧鍚庣畻娉曞啀鍙栬秺鏉ヨ秺澶х殑姝ラ暱榪涜鎺掑簭錛岀畻娉曠殑鏈�鍚庝竴姝ュ氨鏄櫘閫氱殑鎻掑叆鎺掑簭錛屼絾鏄埌浜嗚繖姝ワ紝闇�鎺掑簭鐨勬暟鎹嚑涔庢槸宸叉帓濂界殑浜嗭紙姝ゆ椂鎻掑叆鎺掑簭杈冨揩錛夈�?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鍋囪鏈変竴涓緢灝忕殑鏁版嵁鍦ㄤ竴涓凡鎸夊崌搴忔帓濂藉簭鐨勬暟緇勭殑鏈銆傚鏋滅敤澶嶆潅搴︿負(fù)</font></span><span lang=EN-US XML:LANG="EN-US">O(n2)</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鐨勬帓搴忥紙鍐掓場鎺掑簭鎴栨彃鍏ユ帓搴忥級錛屽彲鑳戒細(xì)榪涜</font></span><span lang=EN-US XML:LANG="EN-US">n</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">嬈＄殑姣旇緝鍜屼氦鎹㈡墠鑳藉皢璇ユ暟鎹Щ鑷蟲紜綅緗�傝�屽笇灝?dāng)鎺掑簭浼?xì)鐢ㄨ緝澶х殑姝ラ暱縐誨姩鏁版嵁錛屾墍浠ュ皬鏁版嵁鍙渶榪涜灝戞暟姣旇緝鍜屼氦鎹㈠嵆鍙埌姝ｇ‘浣嶇疆銆?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">涓�涓洿濂界悊瑙ｇ殑甯屽皵鎺掑簭瀹炵幇錛氬皢鏁扮粍鍒楀湪涓�涓〃涓茍瀵瑰垪鎺掑簭錛堢敤鎻掑叆鎺掑簭錛夈�傞噸澶嶈繖榪囩▼錛屼笉榪囨瘡嬈＄敤鏇撮暱鐨勫垪鏉ヨ繘琛屻�傛渶鍚庢暣涓〃灝卞彧鏈変竴鍒椾簡銆傚皢鏁扮粍杞崲鑷寵〃鏄負(fù)浜嗘洿濂藉湴鐞嗚В榪欑畻娉曪紝綆楁硶鏈韓浠呬粎瀵瑰師鏁扮粍榪涜鎺掑簭錛堥�氳繃澧炲姞绱㈠紩鐨勬闀匡紝渚嬪鏄敤</font></span><span lang=EN-US XML:LANG="EN-US">i += step_size</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鑰屼笉鏄?/font></span><span lang=EN-US XML:LANG="EN-US">i++</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">錛夈�?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">渚嬪錛屽亣璁炬湁榪欐牱涓�緇勬暟</font></span><span lang=EN-US XML:LANG="EN-US">[ 13 14 94 33 82 25 59 94 65 23 45 27 73 25 39 10 ]</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">錛屽鏋滄垜浠互姝ラ暱涓?/font></span><span lang=EN-US XML:LANG="EN-US">5</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">寮�濮嬭繘琛屾帓搴忥紝鎴戜滑鍙互閫氳繃灝嗚繖鍒楄〃鏀懼湪鏈?/font></span><span lang=EN-US XML:LANG="EN-US">5</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">琛岀殑琛ㄤ腑鏉ユ洿濂藉湴鎻忚堪綆楁硶錛岃繖鏍蜂粬浠氨搴旇鐪嬭搗鏉ユ槸榪欐牱錛?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">13 14 94 33 82</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">25 59 94 65 23</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">45 27 73 25 39</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">10</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鐒跺悗鎴戜滑瀵規(guī)瘡琛岃繘琛屾帓搴忥細(xì)</font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">10 14 73 25 23</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">13 27 94 33 39</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">25 59 94 65 82</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">45</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">褰撴垜浠互鍗曡鏉ヨ鍙栨暟鎹椂鎴戜滑寰楀埌錛?/font></span><span lang=EN-US XML:LANG="EN-US">[ 10 14 73 25 23 13 27 94 33 39 25 59 94 65 82 45 ].</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">榪欐椂</font></span><span lang=EN-US XML:LANG="EN-US">10</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">宸茬粡縐昏嚦姝ｇ‘浣嶇疆浜嗭紝鐒跺悗鍐嶄互</font></span><span lang=EN-US XML:LANG="EN-US">3</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">涓烘闀胯繘琛屾帓搴忥細(xì)</font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">10 14 73</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">25 23 13</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">27 94 33</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">39 25 59</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">94 65 82</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">45</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鎺掑簭涔嬪悗鍙樹負(fù)錛?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">10 14 13</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">25 23 33</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">27 25 59</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">39 65 73</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">45 94 82</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">94</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鏈�鍚庝互</font></span><span lang=EN-US XML:LANG="EN-US">1</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">姝ラ暱榪涜鎺掑簭錛堟鏃跺氨鏄畝鍗曠殑鎻掑叆鎺掑簭浜嗭級銆?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">姝ラ暱鐨勯�夋嫨鏄笇灝?dāng)鎺掑簭鐨勯噸瑕侀儴鍒嗐�傚彧瑕佹渶緇堟闀夸負(fù)</font></span><span lang=EN-US XML:LANG="EN-US">1</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">浠諱綍姝ラ暱搴忓垪閮藉彲浠ュ伐浣溿�傜畻娉曟渶寮�濮嬩互涓�瀹氱殑姝ラ暱榪涜鎺掑簭銆傜劧鍚庝細(xì)緇х畫浠ヤ竴瀹氭闀胯繘琛屾帓搴忥紝鏈�緇堢畻娉曚互姝ラ暱涓?/font></span><span lang=EN-US XML:LANG="EN-US">1</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">榪涜鎺掑簭銆傚綋姝ラ暱涓?/font></span><span lang=EN-US XML:LANG="EN-US">1</span></span></span><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">鏃訛紝綆楁硶鍙樹負(fù)鎻掑叆鎺掑簭錛岃繖灝變繚璇佷簡鏁版嵁涓�瀹氫細(xì)琚帓搴忋�?/font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span style="FONT-FAMILY: '寰蔣闆呴粦', 'sans-serif'"><font face="">綆楁硶濡備笅</font></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">#include &lt;stdio.h&gt;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">&nbsp;<wbr></span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">void output_array(int data[], int n)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">{</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> int i;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> for(i = 0; i &lt; n; i++)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> printf("%d ", data[i]);</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> printf("\n");</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">}</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">void swap(int *a, int *b)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">{</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> int x;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> x = *a;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> *a = *b;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> *b = x;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">}</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">void insertion_sort(int data[], int n, int increment)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">{</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> int i, j;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> for(i = increment; i &lt; n; i += increment)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> for(j = i; j &gt;= increment &amp;&amp; data[j] &gt; data[j - increment]; j -= increment)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> swap(&amp;data[j], &amp;data[j - increment]);</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">}</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">void shellsort(int data[], int n)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">{</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> int i, j;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> for(i = n / 2; i &gt; 2; i /= 2)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> for(j = 0; j &lt; i; j++)</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> <span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span>insertion_sort(data + j, n - j, i);</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> insertion_sort(data, n, 1);</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">}</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">int main()</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">{</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> int data[] = {5, 3, 1, 665, 77, 66, 44, 11, 10, 9, 8, 6};</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> output_array(data, 12);</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> shellsort(data, 12);</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> output_array(data, 12);</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US"><span>&nbsp;<wbr>&nbsp;<wbr>&nbsp;<wbr></span> return 0;</span></span></span></p>
<p style="TEXT-INDENT: 21pt"><span><span><span lang=EN-US XML:LANG="EN-US">}</span></span></span></p>
<img src ="http://www.shnenglu.com/elva/aggbug/132021.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/elva/" target="_blank">鍙跺瓙</a> 2010-11-01 18:08 <a href="http://www.shnenglu.com/elva/archive/2010/11/01/132021.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>shellsort涔嬩笁</title><link>http://www.shnenglu.com/elva/archive/2010/11/01/132022.html</link><dc:creator>鍙跺瓙</dc:creator><author>鍙跺瓙</author><pubDate>Mon, 01 Nov 2010 10:08:00 GMT</pubDate><guid>http://www.shnenglu.com/elva/archive/2010/11/01/132022.html</guid><wfw:comment>http://www.shnenglu.com/elva/comments/132022.html</wfw:comment><comments>http://www.shnenglu.com/elva/archive/2010/11/01/132022.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/elva/comments/commentRss/132022.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/elva/services/trackbacks/132022.html</trackback:ping><description><![CDATA[<br>緗戠珯: <a ><u><font color=#0066cc>JavaEye</font></u></a>&nbsp; 浣滆�? <a ><u><font color=#0066cc>shenyu</font></u></a>&nbsp; 閾炬帴錛?<a style="COLOR: red" ><u>http://shenyu.javaeye.com/blog/189563</u></a>&nbsp; 鍙戣〃鏃墮棿: 2008騫?5鏈?5鏃?<br><br>澹版槑錛氭湰鏂囩郴JavaEye緗戠珯鍙戝竷鐨勫師鍒涘崥瀹㈡枃绔狅紝鏈粡浣滆�呬功闈㈣鍙紝涓ョ浠諱綍緗戠珯杞澆鏈枃錛屽惁鍒欏繀灝嗚拷絀舵硶寰嬭矗浠伙紒 <br><br>
<p><a href="http://www.shnenglu.com/elva/admin/188974"><u><font color=#0066cc>鎻掑叆鎺掑簭</font></u></a> 瀵瑰熀鏈湁搴忕殑鏁扮粍鏁堟灉闈炲父濂斤紝浣嗘槸瀵逛簬閫氬父鎯呭喌鍒欒〃鐜頒竴鑸�傚亣璁炬渶灝忕殑鏁板瓧鍦ㄦ渶鍙寵竟錛屽崌搴忔帓搴忔椂錛岃繖涓暟鍒欒緇忚繃n嬈′氦鎹㈡瘮杈冩崲鍒版渶宸﹁竟銆傚笇灝?dāng)鎺掑簭鍒欐槸瀵规彃鍏ユ帓搴忕殑寰堝ソ鐨勪慨姝ｃ�傝�屼笖鍦ㄥ笇灝?dāng)鎺掑簭寰垶畱鍑虹幇鏈�鍧忕姸鍐點(diǎn)�?/p>
<p>甯屽皵鎺掑簭閫氳繃瀵規(guī)暟緇?浠ヤ竴瀹氶棿闅旂浉闅旂殑浣嶇疆 榪涜鎻掑叆鎺掑簭錛屼互杈懼埌璁╂暟鎹揩閫熷嚭鐜板湪瀹冨簲璇ュ嚭鐜扮殑浣嶇疆鐨勫懆鍥達(dá)紝浣挎暟緇勯�愭鎺ヨ繎鍩烘湰鏈夊簭銆傞殢鐫�闂撮殧鐨勫噺灝戯紝鏁扮粍瓚婃潵瓚婃帴榪戝熀鏈湁搴忥紝鏈�鍚庨棿闅斾負(fù)1鏃訛紝鍙樻垚鏍囧噯鐨勬彃鍏ユ帓搴忋�?/p>
<p>鏁版嵁鐨勯棿闅旀湁澶氱綆楁硶錛屼竴鑸姹傞棿闅斿簭鍒椾箣闂翠簰璐紝姝ゅ浣跨敤Kunth搴忓垪錛歨 = h * 3 + 1</p>
<p>甯屽皵鎺掑簭鐨勬椂闂存晥鐜囧緢闅句粠鐞嗚涓婅瘉鏄庯紝瀹為獙琛ㄦ槑澶х害鏄疧(n^(3/2)) ~ O(n^(7/6))涔嬮棿銆?/p>
<p>浠ｇ爜濡備笅錛?/p>
<pre class=java name="code">class Shell {
public static void main(String[] args) {
int[] a = {9,8,7,6,5,4,3,2,1};
sort(a);
println(a);
}
private static void println(int[] a) {
for(int i: a) System.out.print(i + " ");
System.out.println();
}
private static void sort(int[] a) {
int h = 1;
while(h &lt;= a.length/3) h = h * 3 + 1;	//浜ф垚Kunth搴忓垪
while(h &gt; 0) {
for(int i = h; i &lt; a.length; i++) {	//瀵規(guī)瘡涓暟鎹繘琛岄棿闅斾負(fù)h鐨勬彃鍏ユ帓搴?
int pos = i;
int temp = a[i];
while(pos &gt;= h &amp;&amp; a[pos - h] &gt; temp) {
a[pos] = a[pos-h];
pos -= h;
}
a[pos] = temp;
}
h = (h - 1) / 3;	//鍑忓皬闂撮殧鍊?
}
}
}</pre>
&nbsp; 
<img src ="http://www.shnenglu.com/elva/aggbug/132022.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/elva/" target="_blank">鍙跺瓙</a> 2010-11-01 18:08 <a href="http://www.shnenglu.com/elva/archive/2010/11/01/132022.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>shellsort涔嬩竴</title><link>http://www.shnenglu.com/elva/archive/2010/11/01/132020.html</link><dc:creator>鍙跺瓙</dc:creator><author>鍙跺瓙</author><pubDate>Mon, 01 Nov 2010 10:06:00 GMT</pubDate><guid>http://www.shnenglu.com/elva/archive/2010/11/01/132020.html</guid><wfw:comment>http://www.shnenglu.com/elva/comments/132020.html</wfw:comment><comments>http://www.shnenglu.com/elva/archive/2010/11/01/132020.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/elva/comments/commentRss/132020.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/elva/services/trackbacks/132020.html</trackback:ping><description><![CDATA[杞嚜錛?br><a >http://apps.hi.baidu.com/share/detail/15570437</a><br><br><br>
<div   class="hvzpftn"   id=app-share-content>
<p><strong>鍩烘湰鎬濇兂</strong></p>
<p>鍏堝彇涓�涓皬浜巒鐨勬暣鏁癲1浣滀負(fù)絎竴涓閲忥紝鎶婃枃浠剁殑鍏ㄩ儴璁板綍鍒嗘垚d1涓粍銆傛墍鏈夎窛紱諱負(fù)dl鐨勫�嶆暟鐨勮褰曟斁鍦ㄥ悓涓�涓粍涓�傚厛鍦ㄥ悇緇勫唴榪涜鐩存帴鎻掍漢鎺掑簭錛涚劧鍚庯紝鍙栫浜屼釜澧為噺d2&lt;d1閲嶅涓婅堪鐨勫垎緇勫拰鎺掑簭錛岀洿鑷蟲墍鍙栫殑澧為噺dt=1(dt&lt;dt-l&lt;&#8230;&lt;d2&lt;d1)錛屽嵆鎵�鏈夎褰曟斁鍦ㄥ悓涓�緇勪腑榪涜鐩存帴鎻掑叆鎺掑簭涓烘銆?/p>
<p><strong>綆楁硶瀹炵幇(Java璇█)</strong></p>
<p>package org.shirdrn.internal.sort;</p>
<p>/**<br>* &lt;p&gt;&lt;B&gt;甯屽皵鎺掑簭綆楁硶綾?lt;/B&gt;<br>* &lt;p&gt;鍩烘湰鎬濇兂錛?br>* &lt;p&gt;<br>* &lt;p&gt;鍏堝彇涓�涓皬浜巒鐨勬暣鏁癲1浣滀負(fù)絎竴涓閲忥紝鎶婃枃浠剁殑鍏ㄩ儴璁板綍鍒嗘垚d1涓粍銆傛墍鏈夎窛紱諱負(fù)dl鐨?br>* 鍊嶆暟鐨勮褰曟斁鍦ㄥ悓涓�涓粍涓�傚厛鍦ㄥ悇緇勫唴榪涜鐩存帴鎻掍漢鎺掑簭錛涚劧鍚庯紝鍙栫浜屼釜澧為噺d2&lt;d1閲嶅涓?br>* 榪扮殑鍒嗙粍鍜屾帓搴忥紝鐩磋嚦鎵�鍙栫殑澧為噺dt=1(dt&lt;dt-l&lt;&#8230;&lt;d2&lt;d1)錛屽嵆鎵�鏈夎褰曟斁鍦ㄥ悓涓�緇勪腑榪涜<br>* 鐩存帴鎻掑叆鎺掑簭涓烘銆?br>* &lt;p&gt;<br>* &lt;p&gt;璇ユ柟娉曞疄璐ㄤ笂鏄竴縐嶅垎緇勬彃鍏ユ柟娉曘�?br>* <br>* @author shirdrn<br>*<br>*/<br>public class ShellSort {</p>
<p>private Integer[] array;<br><br>public ShellSort(Integer[] array) {<br>&nbsp;&nbsp; this.array = array;<br>}<br><br>public void sort() {<br>&nbsp;&nbsp; int d = array.length;<br>&nbsp;&nbsp; do {<br>&nbsp;&nbsp;&nbsp; d /= 2;<br>&nbsp;&nbsp;&nbsp; shellPass(d); // 鏍規(guī)嵁閫愭笎鍑忓皬鐨勯棿闅斿閲忥紝寰幆璋冪敤涓�瓚熸帓搴?br>&nbsp;&nbsp; }while(d&gt;1);<br>}<br><br>/**<br>* 甯屽皵涓�瓚熸帓搴?br>* <br>* @param d 闂撮殧澧為噺<br>*/<br>private void shellPass(int d) {<br>&nbsp;&nbsp; Integer tmp;<br>&nbsp;&nbsp; for(int i=d; i&lt;array.length; i++) { // 鏁扮粍涓嬫爣浠?寮�濮嬶紝鍒濆i=d琛ㄧず涓�瓚熸帓搴忎腑絎簩涓厓绱?br>&nbsp;&nbsp;&nbsp; tmp = array[i]; // array[i]鐨勬嫹璐?br>&nbsp;&nbsp;&nbsp; // 濡傛灉寰呭鐞嗙殑鏃犲簭鍖虹涓�涓厓绱燼rray[i] &lt; 鏈夊簭鍖烘渶澶х殑鍏冪礌array[i-d]<br>&nbsp;&nbsp;&nbsp; // 闇�瑕佸皢鏈夊簭鍖烘瘮array[i]澶х殑鍏冪礌鍚戝悗縐誨姩<br>&nbsp;&nbsp;&nbsp; if(array[i]&lt;array[i-d]) { <br>&nbsp;&nbsp;&nbsp;&nbsp; int j=i-d;<br>&nbsp;&nbsp;&nbsp;&nbsp; while(j&gt;=0 &amp;&amp; tmp&lt;array[j]) {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; array[j+d] = array[j]; // 灝嗗乏渚ф湁搴忓尯涓厓绱犳瘮array[i]澶х殑array[j+d]鍚庣Щ<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; j -= d;<br>&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp; // 濡傛灉array[i] &gt;= 宸︿晶鏈夊簭鍖烘渶澶х殑array[i-d]錛屾垨鑰呯粡榪囨壂鎻忕Щ鍔ㄥ悗錛屾壘鍒頒竴涓瘮array[i]灝忕殑鍏冪礌<br>&nbsp;&nbsp;&nbsp;&nbsp; // 灝嗗彸渚ф棤搴忓尯絎竴涓厓绱爐mp = array[i]鏀懼埌姝ｇ‘鐨勪綅緗笂<br>&nbsp;&nbsp;&nbsp;&nbsp; array[j+d] = tmp; <br>&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp; }<br>}<br><br>/**<br>* 杈撳嚭鏁扮粍鍏冪礌<br>*/<br>public String print() {<br>&nbsp;&nbsp; StringBuffer sb = new StringBuffer();<br>&nbsp;&nbsp; for(int i=0; i&lt;array.length; i++) {<br>&nbsp;&nbsp;&nbsp; sb.append(array[i]);<br>&nbsp;&nbsp;&nbsp; if(i != array.length-1) {<br>&nbsp;&nbsp;&nbsp;&nbsp; sb.append(", ");<br>&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp; }<br>&nbsp;&nbsp; return sb.toString();<br>}<br>}</p>
<p><strong>鎺掑簭榪囩▼</strong></p>
<p>甯屽皵鎺掑簭鐨勮繃紼嬪涓嬶細(xì)</p>
<p>棣栧厛鍒濆鍖栭棿闅攄涓哄緟鎺掑簭鏁扮粍鐨勯暱搴︼紝鏃犻渶鎺掑簭銆?/p>
<p>鍑忓皬d錛屽浜庢瘡嬈″緱鍒扮殑闂撮殧d錛屾墽琛屽緇勬帓搴忥紝浣垮緱鍘熷鏁扮粍闂撮殧涓篸鐨勪竴涓瓙鏁扮粍涓烘湁搴忥紝璇ユ暟緇勯�氳繃綾諱技鐩存帴鎻掑叆鎺掑簭鐨勭畻娉曟潵鎵ц鎺掑簭銆?/p>
<p>鐩村埌錛宒鍑忓皬涓?鐨勬椂鍊欙紝鏁翠釜鏁扮粍涓烘湁搴忋�傝繖閲岋紝閲囩敤浜屽垎鐨勭瓥鐣ユ潵寰楀埌闂撮殧d銆?/p>
<p>鎵ц甯屽皵鎺掑簭鐨勮繃紼嬬ず渚嬪涓嬶細(xì)</p>
<p>鍋囪寰呮帓搴忔暟緇勪負(fù)array = {94,12,34,<font color=#ff00ff>76</font>,26,9,0,37,55,<font color=#ff0000>76</font>,37,5,68,83,90,37,12,65,<font color=#0000ff>76</font>,49}錛屾暟緇勫ぇ灝忎負(fù)20銆?/p>
<p>棣栧厛錛屽垵濮嬪寲d = 20銆傚湪寰幆涓弽澶嶅緱鍒伴棿闅攄錛屾牴鎹甦鎵ц涓�瓚熷笇灝?dāng)鎺掑簭銆?/p>
<p>瀵逛簬d = 20/2 = 10錛?/p>
<p>鏍規(guī)嵁d = 10鏉ュ鏁扮粍鎺掑簭錛屽皢鍘熷鏁扮粍鍒嗘垚2鍧楋細(xì) {94,12,34,<font color=#ff00ff>76</font>,26,9,0,37,55,<font color=#ff0000>76</font>}涓巤37,5,68,83,90,37,12,65,<font color=#0000ff>76</font>,49}錛屼篃灝辨槸瀵瑰涓嬫暟緇勫垎鍒繘琛岀洿鎺ユ彃鍏ユ帓搴忥細(xì)</p>
<p>{array[0],array[10]} = {94,37}</p>
<p>{array[1],array[11]} = {12,5}</p>
<p>{array[2],array[12]} = {34,68}</p>
<p>{array[3],array[13]} = {<font color=#ff00ff>76</font>,83}</p>
<p>{array[4],array[14]} = {26,90}</p>
<p>{array[5],array[15]} = {9,37}</p>
<p>{array[6],array[16]} = {0,12}</p>
<p>{array[7],array[17]} = {37,65}</p>
<p>{array[8],array[18]} = {55,<font color=#0000ff>76</font>}</p>
<p>{array[9],array[19]} = {<font color=#ff0000>76</font>,49}</p>
<p>絎竴瓚熷笇灝?dāng)鎺掑簭鍚庡Q屽悇涓瓙鏁扮粍鍙樹負(fù)錛?/p>
<p>{37,5,34,<font color=#ff00ff>76</font>,26,9,0,37,55,49}涓巤94,12,68,83,90,37,12,65,<font color=#0000ff>76</font>,<font color=#ff0000>76</font>}錛?/p>
<p>鍗籌細(xì)array = {37,5,34,<font color=#ff00ff>76</font>,26,9,0,37,55,49,94,12,68,83,90,37,12,65,<font color=#0000ff>76</font>,<font color=#ff0000>76</font>}錛?/p>
<p>瀵逛簬d = 10/2 = 5錛?/p>
<p>鏍規(guī)嵁d = 5鏉ュ鏁扮粍鎺掑簭錛屽皢絎竴瓚熷笇灝?dāng)鎺掑簭鍚庣殑鏁熬l勫垎鎴?鍧?錛歿37,5,34,<font color=#ff00ff>76</font>,26}銆亄9,0,37,55,49}銆亄94,12,68,83,90}涓巤37,12,65,<font color=#0000ff>76</font>,<font color=#ff0000>76</font>}錛屼篃灝辨槸瀵瑰涓嬫暟緇勫垎鍒繘琛岀洿鎺ユ彃鍏ユ帓搴忥細(xì)</p>
<p>{array[0],array[5],array[10],array[15]} = {37,9,94,37}</p>
<p>{array[1],array[6],array[11],array[16]} = {5,0,12,12}</p>
<p>{array[2],array[7],array[12],array[17]} = {34,37,68,65}</p>
<p>{array[3],array[8],array[13],array[18]} = {<font color=#ff00ff>76</font>,55,83,<font color=#0000ff>76</font>}</p>
<p>{array[4],array[9],array[14],array[19]} = {26,49,90,<font color=#ff0000>76</font>}</p>
<p>絎簩瓚熷笇灝?dāng)鎺掑簭鍚庡Q屽悇涓瓙鏁扮粍鍙樹負(fù)錛?/p>
<p>{9,0,34,55,26}銆亄37,5,37,<font color=#ff0000>76</font>,49}銆亄37,12,65,<font color=#ff00ff>76</font>,<font color=#0000ff>76</font>}涓巤94,12,68,83,90}錛?/p>
<p>鍗籌細(xì)array = {9,0,34,55,26,37,5,37,76,49,37,12,65,76,76,94,12,68,83,90}銆?/p>
<p>瀵逛簬d = 5/2 = 2錛?/p>
<p>鏍規(guī)嵁d = 2鏉ュ鏁扮粍鎺掑簭錛屽皢絎簩瓚熷笇灝?dāng)鎺掑簭鍚庣殑鏁熬l勫垎鎴?0鍧楋細(xì) {9,0}銆亄34,55}銆亄26,37}銆亄5,37}銆亄<font color=#ff0000>76</font>,49}銆亄37,12}銆亄65,<font color=#ff00ff>76</font>}銆亄<font color=#0000ff>76</font>,94}銆亄12,68}涓巤83,90}錛屼篃灝辨槸瀵瑰涓嬫暟緇勫垎鍒繘琛岀洿鎺ユ彃鍏ユ帓搴忥細(xì)</p>
<p>{array[0],array[2],array[4],array[6],array[8],array[10],array[12],array[14],array[16],array[18]} = {9,34,26,5,<font color=#ff0000>76</font>,37,65,<font color=#0000ff>76</font>,12,83}</p>
<p>{array[1],array[3],array[5],array[7],array[9],array[11],array[13],array[15],array[17],array[19]} = {0,55,37,37,49,12,<font color=#ff00ff>76</font>,94,68,90}</p>
<p>絎笁瓚熷笇灝?dāng)鎺掑簭鍚庡Q屽悇涓瓙鏁扮粍鍙樹負(fù)錛歿5,0}銆亄9,12}銆亄12,37}銆亄26,37}銆亄34,49}銆亄37,55}銆亄65,68}銆亄<font color=#ff0000>76</font>,<font color=#ff00ff>76</font>}銆亄<font color=#0000ff>76</font>,90}涓巤83,94}錛?/p>
<p>鍗籌細(xì)array = 錛歿5,0,9,12,12,37,26,37,34,49,37,55,65,68,<font color=#ff0000>76</font>,<font color=#ff00ff>76</font>,<font color=#0000ff>76</font>,90,83,94}銆?/p>
<p>瀵逛簬d = 2/2 = 1錛?/p>
<p>鏍規(guī)嵁d = 1鏉ュ鏁扮粍鎺掑簭錛屽皢絎簩瓚熷笇灝?dāng)鎺掑簭鍚庣殑鏁熬l勫垎鎴?0鍧楋細(xì){5}銆亄0}銆亄9}銆亄12}銆亄12}銆亄37}銆亄26}銆亄37}銆亄34}銆亄49}銆亄37}銆亄55}銆亄65}銆亄68}銆亄<font color=#ff0000>76</font>}銆亄<font color=#ff00ff>76</font>}銆亄<font color=#0000ff>76</font>}銆亄90}銆亄83}銆亄94}錛屼篃灝辨槸瀵瑰涓嬫暟緇勫垎鍒繘琛岀洿鎺ユ彃鍏ユ帓搴忥細(xì)</p>
<p>{5,0,9,12,12,37,26,37,34,49,37,55,65,68,<font color=#ff0000>76</font>,<font color=#ff00ff>76</font>,<font color=#0000ff>76</font>,90,83,94}</p>
<p>絎洓瓚熷笇灝?dāng)鎺掑簭浠ュ悗锛屾暟缁勫凡缁忔湁搴忓Q?/p>
<p>array = {0,5,9,12,12,26,34,37,37,37,49,55,65,68,76,76,76,83,90,94}銆?/p>
<p>鍥犱負(fù) d= 1錛屽笇灝?dāng)鎺掑簭缁撴潫銆?/p>
<p><strong>嫻嬭瘯鐢ㄤ緥</strong></p>
<p>package org.shirdrn.internal.sort;</p>
<p>import junit.framework.TestCase;</p>
<p>public class TestShellSort extends TestCase {</p>
<p>private ShellSort sort;<br>private Integer[] array;<br><br>@Override<br>protected void setUp() throws Exception {<br>&nbsp;&nbsp; array = new Integer[]{<br>&nbsp;&nbsp;&nbsp;&nbsp; 94,12,34,76,26,9,0,37,55,76,37,5,68,83,90,37,12,65,76,49<br>&nbsp;&nbsp; };<br>&nbsp;&nbsp; sort = new ShellSort(array);<br>}<br><br>public void testSort() {<br>&nbsp;&nbsp; // B(Before),A(After)<br>&nbsp;&nbsp; System.out.println("(B)Sorting : " + this.sort.print());<br>&nbsp;&nbsp; this.sort.sort(); <br>&nbsp;&nbsp; System.out.println("(A)Sorting : " + this.sort.print());<br>}<br>}</p>
<p>嫻嬭瘯緇撴灉錛?/p>
<p>(B)Sorting : 94, 12, 34, 76, 26, 9, 0, 37, 55, 76, 37, 5, 68, 83, 90, 37, 12, 65, 76, 49<br>(A)Sorting : 0, 5, 9, 12, 12, 26, 34, 37, 37, 37, 49, 55, 65, 68, 76, 76, 76, 83, 90, 94</p>
<p><strong>綆楁硶鍒嗘瀽</strong></p>
<p>錛堜竴錛夋椂闂村鏉傚害</p>
<p>Shell鎺掑簭鐨勬墽琛屾椂闂翠緷璧栦簬澧為噺搴忓垪銆?/p>
<p>濂界殑澧為噺搴忓垪鐨勫叡鍚岀壒寰侊細(xì)</p>
<p>鈶?鏈�鍚庝竴涓閲忓繀欏諱負(fù)1錛?/p>
<p>鈶?搴旇灝介噺閬垮厤搴忓垪涓殑鍊?灝ゅ叾鏄浉閭?cè)潥勫�?浜掍負(fù)鍊嶆暟鐨勬儏鍐點(diǎn)�?/p>
<p>鏈変漢閫氳繃澶ч噺鐨勫疄楠岋紝緇欏嚭浜嗙洰鍓嶈緝濂界殑緇撴灉錛氬綋n杈冨ぇ鏃訛紝姣旇緝鍜岀Щ鍔ㄧ殑嬈℃暟綰﹀湪n<sup>l.25</sup>鍒?.6n<sup>1.25</sup>涔嬮棿銆?/p>
<p>錛堜簩錛夌┖闂村鏉傚害</p>
<p>鍥犱負(fù)甯屽皵鎺掑簭渚濊禆浜庡閲忓簭鍒楋紝浠庤�屽鑷存帓搴忕殑瓚熸暟涓嶅浐瀹氾紝瀵逛簬涓嶅悓鐨勫閲忔墽琛屼竴瓚熷笇灝?dāng)鎺掑簭锛屽彧鐢ㄥ堫C竴涓緟鍔╁彉閲忋�?/p>
<p>錛堜笁錛夋帓搴忕ǔ瀹氭�?/p>
<p>閫氳繃涓婅堪鍏冪礌76鍙互鐪嬪埌錛屽笇灝?dāng)鎺掑簭涓嵔E沖畾銆?/p>
<p>鍥犳錛屽笇灝?dāng)鎺掑簭鏄笉绋冲畾鐨勩�?/p>
</div>
<img src ="http://www.shnenglu.com/elva/aggbug/132020.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/elva/" target="_blank">鍙跺瓙</a> 2010-11-01 18:06 <a href="http://www.shnenglu.com/elva/archive/2010/11/01/132020.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>璋堣皥 Hash Table</title><link>http://www.shnenglu.com/elva/archive/2010/10/25/131186.html</link><dc:creator>鍙跺瓙</dc:creator><author>鍙跺瓙</author><pubDate>Mon, 25 Oct 2010 04:57:00 GMT</pubDate><guid>http://www.shnenglu.com/elva/archive/2010/10/25/131186.html</guid><wfw:comment>http://www.shnenglu.com/elva/comments/131186.html</wfw:comment><comments>http://www.shnenglu.com/elva/archive/2010/10/25/131186.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/elva/comments/commentRss/131186.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/elva/services/trackbacks/131186.html</trackback:ping><description><![CDATA[杞嚜錛?br><a >http://geeklu.com/2010/07/hash-table/</a><br><br><span id=.>&nbsp;
<h2>涓�.鏁版嵁緇撴瀯</h2>
</span>
<p>鍦ㄦ垜浠紪紼嬬殑涓栫晫閲屾暟鎹殑鍩烘湰緇勭粐鍙互璇存湁涓夌褰㈠紡銆?/p>
<ol>
    <li>緇撴瀯浣?鎴栧璞?
    <li>鏁扮粍
    <li>閾捐〃 </li>
</ol>
<p>鍏朵粬浠諱綍鐨勬暟鎹粍緇囧艦寮忛兘鍙互鐪嬩綔鏄繖涓夌鏁版嵁緇勭粐褰㈠紡鐨勭粍鍚堝彉浣撱�?br><img class="alignnone size-medium wp-image-30874" title=find-people alt="" src="http://geeklu.com/wp-content/uploads/2010/07/find-people-300x225.jpg" width=300 height=225><br>緇撴瀯浣?鎴栧璞?鍙互鏄熀鏈暟鎹被鍨嬫垨鑰呭叾浠栫粨鏋勪綋(鎴栧璞?鐨勭粍鍚堛�傜粨鏋勪綋鎴栧璞′竴鑸敤鏉ユ弿榪頒竴涓鏉傛暟鎹疄浣撱�?/p>
<p>鏁扮粍涓�鑸槸涓�緇勫悓綾誨瀷鐨勫彉閲忕殑闆嗗悎錛屽湪鍐呭瓨涓〃鐜頒負(fù)涓�鐗囪繛緇殑絀洪棿錛屽洜涓虹┖闂存槸榪炵畫鐨勶紝涓旀瘡涓�涓暟鎹崟鍏冨崰鐨勫唴瀛樼┖闂寸殑澶у皬鏄浉絳夌殑錛屾墍浠ュ彲浠ユ牴鎹湴鍧�鐨勫亸縐誨鏁版嵁鍏冪礌瀹炵幇蹇�熻闂紝浣嗘槸褰撻渶瑕佹彃鍏ユ垨鑰呭垹闄や竴涓厓绱犵殑鏃跺�欙紝鍒欓渶瑕佸鐩爣鍏冪礌鐨勪箣鍚庣殑鎵�鏈夊厓绱犺繘琛岀Щ鍔ㄤ簡銆?/p>
<p>閾捐〃鐨勫崟涓妭鐐逛竴鑸負(fù)緇撴瀯浣撴垨鑰呭璞★紝鍥犱負(fù)閾捐〃鐨勫崟涓妭鐐歸櫎浜嗛渶瑕佷繚瀛樻暟鎹箣澶栬繕闇�瑕佺淮鎶ゅ畠鐨勭浉閭昏妭鐐圭殑鍏崇郴錛屽鏋滄兂鑾峰緱閾捐〃涓殑鏌愪釜鑺傜偣鐨勫�鹼紝闇�瑕佷粠閾捐〃鐨勫ご緇撶偣寮�濮嬮亶鍘嗭紝鐩村埌鎵懼埌闇�瑕佺殑涓滆タ錛岃�屾彃鍏ユ垨鑰呭垹闄ゆ煇涓妭鐐圭殑璇濓紝闇�瑕佹壘鍒扮浉搴旂殑鑺傜偣錛屼慨鏀瑰叾浠ュ強(qiáng)鍏剁浉閭昏妭鐐圭殑鐩稿叧鎸囬拡鐨勫紩鐢ㄥ嵆鍙�?/p>
<p>鍍忓叾浠栫殑鏁版嵁緇撴瀯錛屾瘮濡?闃熷垪錛屾爤錛屾爲(wèi)錛岄兘鍙互閫氳繃鏁扮粍鎴栬�呴摼琛ㄦ潵緇勭粐錛屽茍瀹炵幇鐩稿簲鐨勬搷浣滃姛鑳姐�?/p>
<span id=Hash_Table>
<h2>浜?Hash Table</h2>
</span>
<p>榪欎釜涓栫晫涓婃病鏈夊崄鍏ㄥ崄緹庣殑涓滆タ錛屾墍浠ユ垜浠瀛︿細(xì)鍙栬垗銆備換浣曟妧鏈殑瀹炵幇閮芥病鏈夋渶濂界殑鍙鏈�鍚堥�傜殑錛屼篃灝辮瀹炵幇鐨勬渶浣蟲柟妗堟槸鍜屽簲鐢ㄥ満鏅伅鎭浉鍏崇殑銆?br>寰堝鏃跺�欙紝鎴戜滑鎯沖鏁版嵁榪涜蹇�熺殑瀛樺彇錛堟瘮濡傜紦瀛樼殑瀹炵幇錛夛紝騫剁敤涓�涓猭ey鏉ユ爣璁拌嚜宸卞瓨鍙栫殑鏁版嵁銆傛垜浠彲浠ユ妸瀹冨彨鍋歬ey-value鐨勭粨鏋勩�?br>璇村埌&#8220;蹇�?#8221;鎴戜滑寰堝揩鎯沖埌鏁扮粍錛屽洜涓烘暟緇勫彲浠ュ湪O(1)鐨勬椂闂村鏉傚唴瀹屾垚鎸囧畾浣嶇疆鍏冪礌鐨勮鍐欐搷浣溿�?br>鎵�浠ュ湪鐞嗘兂鐘舵�侊紝濡傛灉涓�涓暟緇勮凍澶熼暱錛屼笖瀛樺湪涓�涓嚱鏁板彲浠ュ皢姣忎竴涓猭ey鏄犲皠鍒板敮涓�鐨勪竴涓暟緇勪笅鏍囷紝閭ｄ箞鎴戜滑灝卞彲浠ュ緢瀹岀編鐨勮В鍐抽棶棰樸�備絾寰�寰�璧勬簮閮芥槸鏈夐檺鐨勶紝鎴戜滑娌℃湁閭ｄ箞澶х殑絀洪棿錛屼篃涓嶈兘璁捐涓�涓棤姣旇礋璐ｇ殑鏄犲皠綆楁硶淇濊瘉姣忎竴涓猭ey瀵瑰簲鍒頒竴涓敮涓�鐨勬暟緇勪笅鏍囥�傛墍浠ユ垜浠細(xì)閫夋嫨涓�浜涙姌涓殑鏂規(guī)銆?/p>
<p>hash table渚挎槸涓鴻В鍐寵繖綾婚棶棰樿�屽瓨鍦ㄧ殑銆?/p>
<span id=1.>
<h3>1.鍝堝笇鍑芥暟</h3>
</span>
<p>Hash鎴栬�呬綘鍙互緲昏瘧鎴愭暎鍒楁垨鑰呮潅鍑戯紝hash鎿嶄綔鍏舵湰璐ㄤ笂灝辨槸灝嗕竴涓暟鎹槧灝勬垚鍙︿竴涓暟鎹紝閫氬父鎯呭喌涓嬪師鏁版嵁鐨勯暱搴︽瘮hash鍚庣殑鏁版嵁瀹歸噺澶с�?br>榪欑鏄犲皠鐨勫叧緋繪垜浠彨鍋氬搱甯屽嚱鏁般�?br><img class="alignnone size-full wp-image-30878" title=300px-Hash_table_4_1_1_0_0_0_0_LL.svg alt="" src="http://geeklu.com/wp-content/uploads/2010/07/300px-Hash_table_4_1_1_0_0_0_0_LL.svg_.png" width=300 height=270><br>涓�鑸儏鍐典笅 鍝堝笇鍑芥暟鐨勮緭鍏ュ彲鑳界殑鎬繪暟瑕佽繙榪滃浜庡搱甯屽�兼墍鑳借〃紺虹殑鎬繪暟錛屾墍浠ュ氨鏈夊彲鑳戒袱涓笉鍚岀殑杈撳叆瀵瑰簲鍚屼竴涓搱甯屽�鹼紝閫氬父鎶婂叿鏈変笉鍚屽叧閿爜鑰屽叿鏈夌浉鍚屽搱甯屽�肩殑璁板綍縐頒綔&#8220;鍚屼箟璇?#8221;銆?br>鍦ㄤ俊鎭畨鍏ㄩ鍩熶腑涔熺粡甯鎬嬌鐢ㄥ埌鍝堝笇鍑芥暟錛屼笉榪囬渶瑕佷嬌鐢ㄧ殑鏄崟鍚戝搱甯屽嚱鏁幫紝灝辨槸鏃犳硶閫氳繃鍝堝笇鐨勭粨鏋滃弽鎺ㄥ嚭杈撳叆錛屾墍浠ョ粡甯稿簲鐢ㄤ簬瀵嗙爜鐨勫姞瀵嗭紝浼犺緭鍐呭鐨勫畬鏁存�ф鏌ワ紝鍦ㄥ畨鍏ㄩ鍩熷父鐢ㄧ殑鍝堝笇綆楁硶鏈?MD5錛孲HA1絳夈�?br>鍦ㄥ搱甯岃〃鐨勫簲鐢ㄤ腑錛屽搱甯屽嚱鏁板父鐢ㄤ綑鏁版硶榪涜錛屼篃灝辨槸閫氳繃姹傛ā鐨勬柟寮忕畻鍑哄搱甯屽�箋�?/p>
<span id=2.>
<h3>2.鍝堝笇琛?/h3>
</span>
<p>鍝堝笇琛ㄦ槸涓�縐嶆暟鎹粨鏋勶紝瀹炵幇key-value鐨勫揩閫熷瓨鍙栥�備箣鍓嶈榪囨暟緇勫彲浠ュ疄鐜板揩閫熷瓨鍙栵紝鎵�浠ュ搱甯岃〃鑲畾浼?xì)鋴社敤鍒版暟缁勩�傚湪榪欓噷錛屾垜浠妸姣忎竴涓暟緇勭殑鍗曞厓鍙仛涓�涓猙ucket錛堟《錛夈�?/p>
<span>
<h5>鏋勯�犲搱甯屽嚱鏁?/h5>
</span>
<p>榪欓噷鍝堝笇鍑芥暟鐨勪綔鐢ㄥ氨鏄皢key鏄犲皠鍒頒竴涓瓨鍌ㄥ湴鍧�銆傛墍浠ユ瀯閫犱竴涓搱甯岃〃鎴戜滑寰楀厛鏋勯�犲搱甯屽嚱鏁般�?br>濡傛灉涓�涓猭ey鍝堝笇鍚庡搴斿湴鍧�涓凡緇忓瓨鏀句簡鍊間簡錛岃繖縐嶆儏鍐墊垜浠彨鍋氬搱甯屽啿紿侊紙Hash collisions錛夈�?br>濡傛灉瀛樺湪涓�涓搱甯屽嚱鏁幫紝浣垮緱姣忎竴涓緭鍏ラ兘鑳藉搴斿埌鍞竴鐨勪竴涓瓨鍌ㄥ崟鍏冧腑錛堟病鏈夊啿紿侊級錛岄偅涔堣繖鏍風(fēng)殑鍝堝笇鍑芥暟鎴戜滑鍙互鍙畠瀹岀編鍝堝笇鍑芥暟錛圥erfect Hash Function錛岀畝縐癙HF)銆?br>浣嗕負(fù)浜嗗搱甯屽嚱鏁扮畝鍗曪紝榪愯閫熷害蹇紝寰�寰�涓嶄細(xì)浣跨敤瀹岀編鍝堝笇鍑芥暟銆傛墍浠ュ啿紿佽偗瀹氫細(xì)瀛樺湪鐨勶紝涓轟簡鍑忓皯鍐茬獊錛屾垜浠笇鏈涘搱甯屽嚱鏁扮殑緇撴灉鍧囧寑鐨勫垎甯冨湪鍦板潃鍗曞厓鐨勭┖闂翠腑銆傝繖鏍峰彲浠ユ湁鏁堢殑鍑忓皯鍐茬獊銆?br><img class="alignnone size-full wp-image-30876" title=Hash_table alt="" src="http://geeklu.com/wp-content/uploads/2010/07/Hash_table.png" width=315 height=230><br>瑁呭～鍥犲瓙Load factor a=鍝堝笇琛ㄧ殑瀹為檯鍏冪礌鏁扮洰(n)/ 鍝堝笇琛ㄧ殑瀹歸噺(m) a瓚婂ぇ錛屽搱甯岃〃鍐茬獊鐨勬鐜囪秺澶э紝浣嗘槸a瓚婃帴榪?錛岄偅涔堝搱甯岃〃鐨勭┖闂村氨瓚婃氮璐廣�?br>涓�鑸儏鍐典笅寤鴻Load factor鐨勫�間負(fù)0-0.7錛孞ava瀹炵幇鐨凥ashMap榛樿鐨凩oad factor鐨勫�間負(fù)0.75錛屽綋瑁呰澆鍥犲瓙澶т簬榪欎釜鍊肩殑鏃跺�欙紝HashMap浼?xì)瀵规暟缁剺q涜鎵╁紶鑷沖師鏉ヤ袱鍊嶅ぇ銆?/p>
<span id=_1>
<h5>鍐茬獊瑙ｅ喅</h5>
</span>
<p>鏃㈢劧鍐茬獊涓嶅彲閬垮厤錛岄偅涔堟垜浠氨蹇呴』瀵瑰啿紿佽繘琛岃В鍐?鎬諱笉鑳芥妸涔嬪墠鐨勫唴瀹硅鐩栨帀鎶?,<br>瑙ｅ喅鍐茬獊鐨勬柟寮忎富瑕佸垎涓ょ被<br>寮�鏀懼畾鍧�娉?Open addressing)榪欑鏂規(guī)硶灝辨槸鍦ㄨ綆椾竴涓猭ey鐨勫搱甯岀殑鏃跺�欙紝鍙戠幇鐩爣鍦板潃宸茬粡鏈夊�間簡錛屽嵆鍙戠敓鍐茬獊浜嗭紝榪欎釜鏃跺�欓�氳繃鐩稿簲鐨勫嚱鏁板湪姝ゅ湴鍧�鍚庨潰鐨勫湴鍧�鍘繪壘錛岀洿鍒版病鏈夊啿紿佷負(fù)姝€�傝繖涓柟娉曞父鐢ㄧ殑鏈夌嚎鎬ф帰嫻嬶紝浜屾鎺㈡祴錛屽啀鍝堝笇銆?br>榪欑瑙ｅ喅鏂規(guī)硶鏈変釜涓嶅ソ鐨勫湴鏂瑰氨鏄紝褰撳彂鐢熷啿紿佷箣鍚庯紝浼?xì)鍦ㄤ箣鍚庣殑鍦板潃絀洪棿涓壘涓�涓斁榪涘幓錛岃繖鏍峰氨鏈夊彲鑳藉悗鏉ュ嚭鐜頒竴涓猭ey鍝堝笇鍑烘潵鐨勭粨鏋滀篃姝ｅソ鏄畠鏀捐繘鍘葷殑榪欎釜鍦板潃絀洪棿錛岃繖鏍峰氨浼?xì)鍑虹幇闈炲悓涔夎瘝鐨勪袱涓猭ey鍙戠敓鍐茬獊銆?br><br><br>閾炬帴娉?Separate chaining)閾炬帴娉曟槸閫氳繃鏁扮粍鍜岄摼琛ㄧ粍鍚堣�屾垚鐨勩�傚綋鍙戠敓鍐茬獊鐨勬椂鍊欏彧瑕佸皢鍏跺姞鍒板搴旂殑閾捐〃涓嵆鍙�?/p>
<p><img class="alignnone size-full wp-image-30877" title=450px-Hash_table_5_0_1_1_1_1_1_LL.svg alt="" src="http://geeklu.com/wp-content/uploads/2010/07/450px-Hash_table_5_0_1_1_1_1_1_LL.svg_.png" width=450 height=310></p>
<p>涓庡紑鏀懼畾鍧�娉曠浉姣旓紝閾炬帴娉曟湁濡備笅鍑犱釜浼樼偣錛?br>鈶犻摼鎺ユ硶澶勭悊鍐茬獊綆�鍗曪紝涓旀棤鍫嗙Н鐜拌薄錛屽嵆闈炲悓涔夎瘝鍐充笉浼?xì)鍙戠敓鍐步H侊紝鍥犳騫沖潎鏌ユ壘闀垮害杈冪煭錛?br>鈶＄敱浜庨摼鎺ユ硶涓悇閾捐〃涓婄殑緇撶偣絀洪棿鏄姩鎬佺敵璇風(fēng)殑錛屾晠瀹冩洿閫傚悎浜庨�犺〃鍓嶆棤娉曠‘瀹氳〃闀跨殑鎯呭喌錛?br>鈶㈠紑鏀懼畾鍧�娉曚負(fù)鍑忓皯鍐茬獊錛岃姹傝濉洜瀛?#945;杈冨皬錛屾晠褰撶粨鐐硅妯¤緝澶ф椂浼?xì)娴垂寰堝绌洪棿銆傝�岄摼鎺ユ硶涓彲鍙?#945;&#8805;1錛屼笖緇撶偣杈冨ぇ鏃訛紝鎷夐摼娉曚腑澧炲姞鐨勬寚閽堝煙鍙拷鐣ヤ笉璁★紝鍥犳鑺傜渷絀洪棿錛?br>鈶ｅ湪鐢ㄩ摼鎺ユ硶鏋勯�犵殑鏁ｅ垪琛ㄤ腑錛屽垹闄ょ粨鐐圭殑鎿嶄綔鏄撲簬瀹炵幇銆傚彧瑕佺畝鍗曞湴鍒犲幓閾捐〃涓婄浉搴旂殑緇撶偣鍗沖彲銆傝�屽寮�鏀懼湴鍧�娉曟瀯閫犵殑鏁ｅ垪琛紝鍒犻櫎緇撶偣涓嶈兘綆�鍗曞湴灝嗚鍒犵粨鐐圭殑絀洪棿緗負(fù)絀猴紝鍚﹀垯灝嗘埅鏂湪瀹冧箣鍚庡～浜烘暎鍒楄〃鐨勫悓涔夎瘝緇撶偣鐨勬煡鎵捐礬寰勩�傝繖鏄洜涓哄悇縐嶅紑鏀懼湴鍧�娉曚腑錛岀┖鍦板潃鍗曞厓(鍗沖紑鏀懼湴鍧�)閮芥槸鏌ユ壘澶辮觸鐨勬潯浠躲�傚洜姝ゅ湪 鐢ㄥ紑鏀懼湴鍧�娉曞鐞嗗啿紿佺殑鏁ｅ垪琛ㄤ笂鎵ц鍒犻櫎鎿嶄綔錛屽彧鑳藉湪琚垹緇撶偣涓婂仛鍒犻櫎鏍囪錛岃�屼笉鑳界湡姝ｅ垹闄ょ粨鐐廣�?/p>
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