鏁版嵁緇撴瀯絎簩绔犲簲鐢ㄩ鍙?qiáng)鍙傝€冪瓟妗圼6]_璺ㄨ€冪綉

聽聽聽聽 聽1錛庡凡鐭?/span>L鏄竴涓暟鎹被鍨?/span>linkedlist鐨勫崟寰幆閾捐〃錛?/span>pa鍜?/span>pb鏄寚鍚?/span>L涓粨鐐圭殑鎸囬拡銆傜畝榪頒笅鍒楃▼搴忔鐨勫姛鑳姐€傘€?a target="_blank">灞變笢縐戞妧澶у 2001 涓€銆?/span>2 錛?/span>5鍒嗭級(jí)銆?/span>

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銆€銆€TYPE linkedlist=鈫?/span>node;

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銆€銆€node=RECORD

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銆€銆€data:datatype; next:linkedlist

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銆€銆€END;

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銆€銆€PROC Mp(pa,pb:linkedlist);

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銆€銆€PROC subp(s,q: linkedlist);

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銆€銆€p:=s;

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銆€銆€WHILE p鈫?/span>.next<>q DO p:=p鈫?/span>.next;

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銆€銆€p鈫?/span>.next:=s

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銆€銆€ENDP;

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銆€銆€subp(pa,pb);

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銆€銆€subp(pb,pa);

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銆€銆€ENDP;

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銆€銆€銆愬弬鑰冪瓟妗堛€?/span>

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銆€銆€mp鏄竴涓繃紼嬶紝鍏跺唴宓屽鏈夎繃紼?/span>subp銆?/span>

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銆€銆€subp(s,q)鐨勪綔鐢ㄦ槸鏋勯€犱粠s鍒?/span>q鐨勫驚鐜摼琛ㄣ€?/span>

subp(pa,pb)璋冪敤緇撴灉鏄皢pa鍒?/span>pb鐨勫墠椹辨瀯閫犱負(fù)寰幆閾捐〃銆?/span>

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銆€銆€subp(pb,pa)璋冪敤緇撴灉鏄皢pb鍒?/span>pa鐨勫墠椹憋紙鎸囧湪L閾捐〃涓紝騫墮潪鍒氭瀯閫犵殑pa寰幆閾捐〃涓級(jí)鏋勯€犱負(fù)寰幆閾捐〃銆?/span>

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銆€銆€鎬諱箣錛屼袱嬈¤皟鐢ㄥ皢L寰幆閾捐〃鍒嗚В涓轟袱涓€傜涓€涓驚鐜摼琛ㄥ寘鍚粠pa鍒?/span>pb鐨勫墠椹?/span>,L涓櫎鍒氭瀯閫犵殑pa鍒?/span>pb鍓嶉┍澶栫殑緇撶偣褰㈡垚絎簩涓驚鐜摼琛ㄣ€?/span>

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銆€銆€2錛庤鍙屽悜寰幆閾捐〃涓粨鐐圭殑鏁版嵁鍩熴€佸墠椹卞拰鍚庣戶鎸囬拡鍩熷垎鍒負(fù)data,pre鍜?/span>next,璇曞啓鍑哄湪鎸囬拡p 鎵€鎸囩粨鐐逛箣鍓嶆彃鍏ヤ竴s緇撶偣鐨?/span>C璇█鎻忚堪璇彞銆傘€?a target="_blank">鍖椾含縐戞妧澶у 2001 涓€銆?/span>3 錛?/span>2鍒嗭級(jí)銆?/span>

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銆€銆€銆愬弬鑰冪瓟妗堛€?/span>

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銆€銆€鍦ㄦ寚閽?/span>p鎵€鎸囩粨鐐瑰墠鎻掑叆緇撶偣s鐨勮鍙ュ涓嬶細(xì)

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銆€銆€s->pre=p->pre; s->next=p; p->pre->next=s; p->pre=s;

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銆€銆€3錛庢湰棰樼粰鍑轟竴涓瓙紼嬪簭鐨勬鍥撅紝濡傚浘2錛岃瘯濉┖瀹屽杽姝ょ畻娉曟鍥俱€傝瀛愮▼搴忕敤鏉ュ鎵劇涓€涓潎鍑虹幇鍦ㄤ笁涓暣鏁板崟鍚戦摼琛?/span>f1錛?/span>f2錛?/span>f3涓殑鐩稿悓鏁存暟銆傚亣瀹氬湪璋冪敤璇ュ瓙紼嬪簭鍓嶏紝榪欎笁涓暣鏁伴摼琛ㄥ凡鎸変粠灝忓埌澶х殑嬈″簭鎺掑簭錛屽崟鍚戦摼琛ㄧ殑褰㈠紡濡備笅鍥?/span>1鐨勪緥瀛愭墍紺恒€?/span>

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銆€銆€娉細(xì)鍦ㄥ浘2鐨勬鍥句腑錛?/span>found鍜?/span>exit鍧囦負(fù)甯冨皵鍨嬬殑鍙橀噺錛屽彲鍙栧€間負(fù)true鍜?/span>false銆?/span>val鏄暣鍨嬪彉閲忥紝鐢ㄦ潵瀛樻斁絎竴涓潎鍑虹幇鍦?/span>f1錛?/span>f2錛?/span>f3涓殑鐩稿悓鏁存暟銆傝嫢f1錛?/span>f2鍜?/span>f3涓棤鐩稿悓鐨勬暣鏁幫紝found 鐨勫€間負(fù)false錛屽惁鍒?/span>found鐨勫€間負(fù)true銆?/span>f1鈫?/span>.link琛ㄧず璁塊棶f1鎵€鎸囩粨鐐圭殑link鍩熴€傘€?a target="_blank">鍝堝皵婊ㄥ伐涓氬ぇ瀛?/a> 1999 涓?/span> 錛?/span>15鍒嗭級(jí)銆?/span>

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銆€銆€銆愬弬鑰冪瓟妗堛€?/span>

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銆€銆€(A) f1<>NIL騫朵笖f2<>NIL

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銆€銆€(B) f1鈫?/span>.data < f2鈫?/span>.data

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銆€銆€(C) f2鈫?/span>.data<f1鈫?/span>.data

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銆€銆€(D) f3鈫?/span>.data<f1鈫?/span>.data

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銆€銆€(E) f1<- f1鈫?/span>.link 鎴?/span>f2=f2鈫?/span>.link;