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8. 宸茬煡綰挎€ц〃錛?/span>a1 a2 a3 鈥?/span>an錛夋寜欏哄簭瀛樹簬鍐呭瓨錛屾瘡涓厓绱犻兘鏄暣鏁幫紝璇曡璁＄敤鏈€灝戞椂闂存妸鎵€鏈夊€間負璐熸暟鐨勫厓绱犵Щ鍒板叏閮ㄦ鏁板€煎厓绱犲墠杈圭殑綆楁硶錛氫緥錛氾紙x,-x,-x,x,x,-x 鈥?/span>x錛夊彉涓猴紙-x,-x,-x鈥?/span>x,x,x錛夈€傘€?a target="_blank">涓滃寳澶у 1998 浜?/span> (15鍒?/span>)銆?/span>

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銆€銆€綾諱技鏈鐨勫彟澶栧彊榪版湁錛?/span>

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銆€銆€錛?/span>1錛夎鏈変竴鍏冪礌涓烘暣鏁扮殑綰挎€ц〃L=(a1,a2,a3,鈥?/span>,an),瀛樻斁鍦ㄤ竴緇存暟緇?/span>A[N]涓?/span>,璁捐涓€涓畻娉?/span>,浠ヨ〃涓?/span>an浣滀負鍙傝€冨厓绱?/span>,灝嗚琛ㄥ垎涓哄乏銆佸彸涓ら儴鍒?/span>,鍏朵腑宸﹀崐閮ㄥ垎姣忎釜鍏冪礌灝忎簬絳変簬an,鍙沖崐閮ㄥ垎姣忎釜鍏冪礌閮藉ぇ浜?/span>an, an浣嶄簬鍒嗙晫浣嶇疆涓?/span>(瑕佹眰緇撴灉浠嶅瓨鏀懼湪A[N]涓?/span>)銆傘€?a target="_blank">鍖椾含鐞嗗伐澶у 1999 鍏紙6鍒嗭級銆?/span>

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銆€銆€錛?/span>2錛夐『搴忓瓨鍌ㄧ殑綰挎€ц〃A,鍏舵暟鎹厓绱犱負鏁村瀷,璇曠紪鍐欎竴綆楁硶,灝?/span>A鎷嗘垚B鍜?/span>C涓や釜琛?/span>,浣?/span>A涓厓绱犲€煎ぇ浜庣瓑浜?/span>0鐨勫厓绱犳斁鍏?/span>B,灝忎簬0鐨勬斁鍏?/span>C涓?/span>.. 瑕佹眰:

銆€1錛夎〃B鍜?/span>C鍙﹀璁劇疆瀛樺偍絀洪棿錛?/span>

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銆€銆€2錛夎〃B鍜?/span>C涓嶅彟澶栬緗?/span>,鑰屽埄鐢?/span>A鐨勭┖闂淬€傘€?a target="_blank">灞變笢澶у 2001 涔?jié)銆?/span>1 (12鍒?/span>)銆?/span>

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銆€銆€錛?/span>3錛夌煡綰挎€ц〃錛?/span>a1, a2,a3,鈥?/span>,an錛夋寜欏哄簭瀛樺偍錛屼笖姣忎釜鍏冪礌閮芥槸鏁存暟鍧囦笉鐩稿悓錛岃璁℃妸鎵€鏈夊鏁扮Щ鍒版墍鏈夊伓鏁板墠杈圭殑綆楁硶銆傦紙瑕佹眰鏃墮棿鏈€灝戯紝杈呭姪絀洪棿鏈€灝戯級銆愪笢鍖楀ぇ瀛?/span> 1997 涓?/span> (15鍒?/span>)銆?/span>

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銆€銆€錛?/span>4錛夌紪鍐欏嚱鏁板皢涓€鏁存暟搴忓垪涓墍鏈夎礋鏁扮Щ鍒版墍鏈夋鏁頒箣鍓嶏紝瑕佹眰鏃墮棿澶嶆潅搴︿負O錛?/span>n錛夈€傘€?a target="_blank">鍗椾含鑸┖鑸ぉ澶у 2001 鍏紙10鍒嗭級銆?/span>

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銆€銆€錛?/span>5錛夊凡鐭ヤ竴涓敱n錛?/span> 璁?/span>n=1000錛変釜鏁存暟緇勬垚鐨勭嚎鎬ц〃錛岃瘯璁捐璇ョ嚎鎬ц〃鐨勪竴縐嶅瓨鍌ㄧ粨鏋勶紝騫剁敤鏍囧噯pascal璇█鎻忚堪綆楁硶錛屽疄鐜板皢n涓厓绱犱腑鎵€鏈夊ぇ浜庣瓑浜?/span>19鐨勬暣鏁版斁鍦ㄦ墍鏈夊皬浜?/span>19鐨勬暣鏁頒箣鍚庛€傝姹傜畻娉曠殑鏃墮棿澶嶆潅搴︿負O(n),絀洪棿澶嶆潅搴?/span>O(1)銆傘€?a target="_blank">瑗垮畨浜ら€氬ぇ瀛?/a> 1996 鍏紙11鍒嗭級銆?/span>

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銆€銆€銆愬弬鑰冪瓟妗堛€?/span>

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銆€銆€[棰樼洰鍒嗘瀽]棰樼洰瑕佹眰閲嶆帓n涓厓绱犱笖浠ラ『搴忓瓨鍌ㄧ粨鏋勫瓨鍌ㄧ殑綰挎€ц〃錛屼嬌寰楁墍鏈夊€間負璐熸暟鐨勫厓绱犵Щ鍒版鏁板厓绱犵殑鍓嶉潰銆傝繖鍙噰鐢ㄥ揩閫熸帓搴忕殑鎬濇兂鏉ュ疄鐜幫紝鍙槸鎻愬嚭鏆傚瓨鐨勭涓€涓厓绱狅紙鏋㈣醬錛夊茍涓嶄綔涓轟互鍚庣殑姣旇緝鏍囧噯錛屾瘮杈冪殑鏍囧噯鏄厓绱犳槸鍚︿負璐熸暟銆?/span>

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銆€銆€int Rearrange錛?/span>SeqList a; int n)

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銆€銆€鈭?/span>a鏄叿鏈?/span>n涓厓绱犵殑綰挎€ц〃錛屼互欏哄簭瀛樺偍緇撴瀯瀛樺偍錛岀嚎鎬ц〃鐨勫厓绱犳槸鏁存暟銆傛湰綆楁硶閲嶆帓綰挎€ц〃a錛?/span>

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銆€銆€鈭ヤ嬌鎵€鏈夊€間負璐熸暟鐨勫厓绱犵Щ鍒版墍鏈夊€間負姝ｆ暟鐨勬暟鐨勫墠闈€?/span>

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銆€銆€{i=0; j=n-1; 鈭?/span> i,j涓哄伐浣滄寚閽堬紙涓嬫爣錛夛紝鍒濆鎸囧悜綰挎€ц〃a鐨勭1涓拰絎?/span>n涓厓绱犮€?/span>

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銆€銆€t=a[0]; 鈭ユ殏瀛樻灑杞村厓绱犮€?/span>

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銆€銆€while(i<j)

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銆€銆€{while(i<j && a[j]>=0) j--; 鈭?/span> 鑻ュ綋鍓嶅厓绱犱負澶т簬絳変簬闆訛紝鍒欐寚閽堝墠縐匯€?/span>

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銆€銆€if(i<j){a[i]=a[j];i++;} 鈭?/span> 灝嗚礋鏁板墠縐匯€?/span>

while(i<j &&a[i]<0)i++; 鈭?/span> 褰撳墠鍏冪礌涓鴻礋鏁版椂鎸囬拡鍚庣Щ銆?/span>

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銆€銆€if(i<j) a[j--]=a[i]; 鈭?/span> 姝ｆ暟鍚庣Щ銆?/span>

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銆€銆€}

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銆€銆€a[i]=t; 鈭ュ皢鍘熺涓€鍏冪礌鏀懼埌鏈€緇堜綅緗€?/span>

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