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>&#20037;&#20037;&#38738;&#38738;&#33609;&#35270;&#39057;&#44;&#57;&#57;&#20037;&#20037;&#20037;&#22269;&#20135;&#31934;&#21697;&#20813;&#36153;&#26080;&#21345;&#39039;&#44;&#33394;&#23159;&#23159;&#32508;&#21512;&#20037;&#20037;&#20037;&#20013;&#25991;&#23383;&#24149;&#13;</title><link>http://www.shnenglu.com/puzzle/category/13346.html</link><description /><language>zh-cn</language><lastBuildDate>Wed, 24 Mar 2010 15:43:01 GMT</lastBuildDate><pubDate>Wed, 24 Mar 2010 15:43:01 GMT</pubDate><ttl>60</ttl><item><title>FOJ鏈夊鏈堣禌-2010騫?3鏈?棰樿В by Puzzle</title><link>http://www.shnenglu.com/puzzle/articles/110328.html</link><dc:creator>Puzzle</dc:creator><author>Puzzle</author><pubDate>Tue, 23 Mar 2010 06:20:00 GMT</pubDate><guid>http://www.shnenglu.com/puzzle/articles/110328.html</guid><wfw:comment>http://www.shnenglu.com/puzzle/comments/110328.html</wfw:comment><comments>http://www.shnenglu.com/puzzle/articles/110328.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/puzzle/comments/commentRss/110328.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/puzzle/services/trackbacks/110328.html</trackback:ping><description><![CDATA[<p>A.<strong><a ><strong>Amicable Pair </strong><br></a></strong>浜插拰鏁幫紝鍏堟毚鍔涚畻鍑烘暟鎹紝鐒跺悗鎵撹〃涔嬨�?<br></p>
<p>B.<strong><a ><strong>A New Sequence Problem </strong></a></strong><br>鍏圷M涓�涓婣C銆傛牴鎹鐩噷鐨勫叕寮忥紝鍏堢敓鎴怉鏁扮粍銆傜畻A[0]闇�瑕侀�氳繃fibonacci鎵懼驚鐜妭,鎵懼驚鐜妭鐨勬柟娉曞氨鐩存帴鏆村姏鍗沖彲,褰揻[i]=f[1]&amp;&amp;f[i-1]=f[0],i-1蹇呮槸涓�涓驚鐜殑闀垮害銆傜畻鍑篈鏁扮粍浠ュ悗錛屽叾瀹炲氨鏄浜庡瓧絎︿覆鐨勬搷浣滀簡銆傛瘮璧涚殑鏃跺�欑敤鍚庣紑鏁扮粍綆楀嚭鏉ヤ簡錛屼絾鏄病鎯沖埌O(n)鐨勬搷浣溿�傝禌鍚庣湅鍒癆C璇存槸o(n)鐨凞P錛屽潥瀹氬鏉傚害鍚庢兂鍒幫紝鍦ㄧ畻鍑篽eight鏁扮粍鍚庯紝鐢ㄥ綋鍓嶄綅緗〃紺轟負鏈�浣庝綅緗紝鐒跺悗鍚戝乏鍚戝彸鎵╁睍鍒扮涓�涓瘮褰撳墠浣嶇疆浣庣殑鍦版柟錛屽茍bl[],br[]鏁扮粍璁板綍榪欎釜鏈�宸﹀拰鏈�鍙籌紝鍑犱箮灝辨槸o(n)鐨勩�?/p>
<p><br>C.<strong><a ><strong>Coin Puzzle</strong></a> </strong><br>緇欏嚭涓�涓杈瑰艦鍜屼袱涓渾錛岄棶涓や釜鍦嗚兘涓嶈兘鏀懼湪澶氳竟褰㈤噷錛屽茍涓斾袱鍦嗕笉鐩鎬氦銆?br>姹傚嚭涓や釜鍦嗙殑鍦嗗績鐨勫悎娉曡寖鍥達紝鏄袱涓杈瑰艦錛岀劧鍚庢眰涓や釜澶氳竟褰㈢殑鏈�榪滆窛紱?/p>
<p>D.<strong><a ><strong>Tree Game</strong></a> </strong><br>鑳芥瀯鎴愪竴棰楃敓鎴愭爲褰撲笖浠呭綋杈規暟涓嶅皯浜巒-1鏉★紱濡傛灉鑳芥瀯鎴愪竴縐嶇敓鎴愭爲錛岄偅涔堣兘鏋勬垚浠繪剰綾誨瀷鐢熸垚鏍?/p>
<p>E.<strong><a ><strong>Swap </strong></a></strong><br>鍙戠敓鍦ㄤ袱涓幆闂寸殑浜ゆ崲浼氬皢涓や釜鐜悎騫訛紝鍙戠敓鍦ㄥ悓涓�涓幆鐨勪氦鎹細灝嗚繖涓幆鎷嗘垚涓や釜鐜�?br>濡傛灉涓嶈�冭檻濂囧伓鎬э紝閭ｄ箞姣忎釜鐜箣闂寸浉浜掔嫭绔嬶紝浜掍笉褰卞搷錛岀幇鍦ㄨ嫢涓�涓幆閲屽悓濂囧伓鎬э紝渚嬪鍏ㄦ槸濂囨暟錛岄偅浠栬偗瀹氳鍜屽叾浠栫殑鐜彂鐢熸帴瑙︼紝涔熷氨鏄拰鍏朵粬鐜悎騫訛紝榪欓噷閫夋嫨鍏ㄦ槸鍋舵暟鐨勭幆鏄劇劧涓嶄細鏇村樊銆?br>濡傛灉娌℃湁浜嗗伓鏁扮幆錛岄偅灝卞彧鑳介�夋嫨鍜屽墿涓嬬殑鏃㈠張濂囧張鏈夊伓鐨勭幆鍚堝茍浜嗐�?br>鏈�鍚庡彲浠ヨ瘉鏄庝竴涓幆閲屾棦鍙堝鏁板張鏈夊伓鏁版椂錛屾渶蹇皢瀹冨畬鍏ㄦ媶寮�闇�瑕乶-1姝ャ�?/p>
<p>F.<strong><a ><strong>JinYueTuan </strong></a></strong><br>鐢ㄩ殧鏉挎硶鍙互鐭ラ亾絳旀鏄疌(m+n-1, n) * n!. 浣嗘槸鏁版嵁閲忛潪甯稿ぇ錛岀洿鎺ョ畻涔樼Н瓚呮椂錛屽姞涓婁竴涓壀鏋濈灛闂村嚭瑙ｏ細濡傛灉鍙戠幇鍦ㄨ竟涔樿竟妯＄殑榪囩▼涓瓟妗堝彉涓?錛屽氨鍙互璺沖嚭浜嗐�?/p>
<p>G.<strong> <a >MiniSum </a></strong><br>dp[i][j]琛ㄧず褰撳彧鑰冭檻鍓峣涓墿鍝佹椂錛岃鍑嗗鍔犲叆絎琲+1涓墿鍝佹椂錛孹[i+1]鍓嶉潰鐨勭郴鏁頒負j鏃剁殑鍑芥暟鏈�灝忓�箋�?br>杞Щ灝辨槸dp[i][j] + j * (-Li) --&gt; dp[i+1][j - Li]<br>&nbsp;dp[i][j] + j * ( Li) --&gt; dp[i+1][j + Li]<br>鍚戝悗鏇存柊錛屾渶鍚庣瓟妗堝氨鏄痙p[n][?]鍙栦釜鏈�澶х殑銆?/p>
<a >H.<strong>Urban planning </strong><font color=#000000><br></font></a><font color=#000000>棰樼洰鍗佸垎璐硅В錛屽彈涓嶄簡浜嗐�傘�傘�?br>姝ｇ‘鐨勭悊瑙ｅ氨鏄粰N涓偣錛屾瘡涓偣鏈変釜鏉冨�鹼紝浠ュ強姣忎袱涓偣涔嬮棿鏈夎竟鏉冿紝鍗曞悜鐨勩�傛眰鍑轟竴涓寘鍚壒瀹氱偣錛堝亣璁劇紪鍙蜂負1錛夌殑鐐圭殑闆嗗悎婊¤凍錛?br>1銆佽繖涓泦鍚堝厓绱犺灝介噺澶氥�?br>2銆侀泦鍚堜腑鐨勫厓绱犱箣闂村樊寮備笉鑳借秴榪嘨銆?br>3銆佸湪姣忎釜闆嗗悎涓�夊嚭杈癸紝浣跨壒瀹氱偣鍒板叾浠栫偣閮芥湁璺彲杈撅紝騫朵笖杈規潈涔嬪拰瑕佹渶灝忋�?br>4銆佸鏋滀袱涓泦鍚堝厓绱犱釜鏁扮浉鍚岋紝鍙栬緝澶х殑杈規潈銆?br><br></font>棣栧厛錛屽鏋滅粰鍑烘弧瓚蟲潯浠剁殑鐐歸泦錛屾垜浠煡閬撴瘡涓や釜鐐逛箣闂撮兘鏈夎竟錛屽彧瑕佹眰鍑轟竴棰楁渶灝忕敓鎴愭爲灝辮浜嗭紝閴翠簬鏈夊悜錛屾墍浠ユ眰鍑轟粠鐗瑰畾鐐圭殑鏍戝艦鍥懼氨琛屼簡錛堝叧浜庢牴紜畾鐨勬渶灝忔爲褰㈠浘錛屽弬鑰冨垬鏈辯畻娉曪級銆傛墍浠ュ彧瑕佹壘鍒拌繖涓弧瓚蟲潯浠剁殑闆嗗悎灝辮浜嗭紝娉ㄦ剰鍒伴泦鍚堜箣涓殑鍏冪礌鏈�澶у樊寮備笉鑳借秴榪嘨錛岃�屼笖V涔熷緢灝忥紝鎵�浠ュ彲浠ユ灇涓鵑泦鍚堢殑鏉冨�煎尯闂碵lo錛宭o+V]錛屾墍鏈夋潈鍊艱惤鍦ㄨ繖涓尯闂翠腑鐨勭偣閮芥弧瓚蟲潯浠訛紝鐢變簬浠諱袱涓偣涔嬮棿閮芥湁杈癸紝鎵�浠ヤ竴瀹氬瓨鍦ㄦ爲褰㈠浘錛屾渶鍚庢眰涓嬫渶灝忔爲褰㈠浘錛岀劧鍚庡垽鏂笅灝辮浜嗐�傘�傘�?br>I.<strong><a ><strong>Air Strike</strong></a> </strong><br>紱葷嚎鎿嶄綔錛屾妸鍒犻櫎鍜屾煡璇㈤兘淇濆瓨璧鋒潵銆傛妸鍒犻櫎淇濆瓨鍚庢帓搴忓茍unique錛屾煡璇篃榪涜鎺掑簭錛岀劧鍚庝粠灝忓埌澶ф煡璇紝鐪嬪綋鍓嶆槸鍚﹁鍒犻櫎錛屽垹闄ょ殑璇濊煩榪囧綋鍓嶈繖涓偣寰�鍚庣Щ涓�涓紝鎯婅浜庢渶鍚庝唬鐮?0琛屼互鍐呫�?br><br>J.<strong><a ><strong>MiniCost</strong></a></strong> <br>棰樼洰鎰忔�濆氨鏄粰鍑轟竴涓嫭鍙峰簭鍒楋紝姣忔鍙互閫夋嫨鏀瑰彉鐗瑰畾鐐逛笂鐨勬嫭鍙鋒柟鍚戯紝騫朵笖鏀瑰彉鏈夋潈鍊箋�傛眰鍑烘渶灝忕殑鏀瑰彉鏉冨�煎拰錛屼嬌榪欎釜鎷彿搴忓垪鍚堟硶銆?br>鏆傛椂鍙細O錛圢^2錛夌畻娉曘�?br>娉ㄦ剰鍒板鏋滀竴涓嫭鍙峰簭鍒楄鏄悎娉曠殑璇濓紝浠繪剰浣嶇疆涓�瀹氭槸宸︽嫭鍙鋒暟澶т簬絳変簬鍙蟲嫭鍙鋒暟錛屾墍浠ヤ互姝ゅ畾涔夌姸鎬乨p[i][j]錛岃〃紺哄墠i涓鍙蜂腑錛屽乏鎷彿姣斿彸鎷彿澶歫涓�傚彧瑕佹牴鎹綋鍓嶇殑絎﹀彿杞Щ灝辮浜嗐�傘�?鍒濆鏉′歡dp[0][0] = 0 銆傘�傛渶鍚庣瓟妗坉p[N][0] 銆傘�傘�?
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