锘??xml version="1.0" encoding="utf-8" standalone="yes"?>国语自产在线不卡,久久成人国产,久久久.comhttp://m.shnenglu.com/021742/category/3875.html蹇冭瀛橀珮榪滐紝琛屾墠鏈変俊蹇冿紒 zh-cnFri, 23 May 2008 03:32:15 GMTFri, 23 May 2008 03:32:15 GMT60涓閬撶畻娉曢潰璇曢錛屽ぇ瀹惰璁虹湅鐪?/title><link>http://m.shnenglu.com/021742/archive/2007/03/22/20386.html</link><dc:creator>鐚ご楗?/dc:creator><author>鐚ご楗?/author><pubDate>Thu, 22 Mar 2007 15:14:00 GMT</pubDate><guid>http://m.shnenglu.com/021742/archive/2007/03/22/20386.html</guid><wfw:comment>http://m.shnenglu.com/021742/comments/20386.html</wfw:comment><comments>http://m.shnenglu.com/021742/archive/2007/03/22/20386.html#Feedback</comments><slash:comments>17</slash:comments><wfw:commentRss>http://m.shnenglu.com/021742/comments/commentRss/20386.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/021742/services/trackbacks/20386.html</trackback:ping><description><![CDATA[棰樼洰錛?br /><br />浠?鍒癗(100000)涓換鎰忔嬁鎺変袱涓暟錛屾妸鍓╀笅鐨?9998涓暟欏哄簭鎵撲貢錛屽茍涓旀斁鍏ユ暟緇凙涓傝姹傚彧鎵弿涓閬嶆暟緇勶紝鎶婅繖涓や釜鏁版壘鍑烘潵銆傚彲浠ヤ嬌鐢ㄦ渶鍒頒笉瓚呰繃5涓眬閮ㄥ彉閲忥紝涓嶈兘鐢ㄦ暟緇勫彉閲忥紝騫朵笖涓嶈兘鏀瑰彉鍘熸暟緇勭殑鍊箋?br /><br />鎬濊礬錛?br /><br />閬嶅巻涓嬈℃暟緇勶紝姹傚嚭榪欎袱涓暟鐨勫拰a+b 涓庣Нa*b<br />a+b = 1+2+3+4+...+N- sum(A[]);聽聽聽 (1)<br />a*b =聽 1*2*3*4*...*N / multi(A[]);聽聽 (2)<br /><br />涓昏瑙e喅sum涓巑ulti鐨勬孩鍑洪棶棰?br /><br />(1) 鍙寲涓?(N-A[0]) + (N-1-A[1]) + ...+ (3-A[N-3]) + 2 + 1<br /><br />(2) 鍙互鐢ㄥ鏁版潵浠f浛鍘熸暟榪涜姹傜Н鐨勭瓑浠瘋繍綆?閬垮厤婧㈠嚭鐨勯棶棰橈紝浣嗘槸榪欑鏂規硶浼氫駭鐢熶竴浜涚簿搴︿笂鐨勯棶棰橈紝涓嶇煡閬撳ぇ瀹舵湁浠涔堟洿濂界殑鏂規硶錛?br />鍏堟眰鍑簂og(a*b)聽:<br />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= log(1*2*3*4*....*N)/log(A[0]*A[1]*A[2]*...*A[N-3])<br />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= log(N)-log(A[0]) + log(N-1)-log(A[1]) + ... +log(3)-log(A[N-3]) + log(2) + log(1)<br />聽聽聽聽聽聽聽聽聽<br />鐭ラ亾浜嗕袱鏁扮殑鍜屼笌縐?鐢辨灝卞彲浠ヨ綆楀嚭a璺焍鐨勫兼潵.<br /><br />浠g爜濡備笅錛?br /><br /><div style="border: 1px solid rgb(204, 204, 204); padding: 4px 5px 4px 4px; font-size: 13px; width: 98%; background-color: rgb(238, 238, 238);"><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" />#include聽</span><span style="color: rgb(0, 0, 0);"><</span><span style="color: rgb(0, 0, 0);">iostream</span><span style="color: rgb(0, 0, 0);">></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" />#include聽</span><span style="color: rgb(0, 0, 0);"><</span><span style="color: rgb(0, 0, 0);">Ctime</span><span style="color: rgb(0, 0, 0);">></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" />#include聽</span><span style="color: rgb(0, 0, 0);"><</span><span style="color: rgb(0, 0, 0);">Cmath</span><span style="color: rgb(0, 0, 0);">></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /></span><span style="color: rgb(0, 0, 255);">using</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 255);">namespace</span><span style="color: rgb(0, 0, 0);">聽std;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /></span><span style="color: rgb(0, 0, 255);">#define</span><span style="color: rgb(0, 0, 0);">聽N聽100000</span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /></span><span style="color: rgb(0, 128, 0);">//</span><span style="color: rgb(0, 128, 0);">鐢熸垚涓嶅悓鐨勯殢鏈烘暟鐨勬暟緇?/span><span style="color: rgb(0, 128, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /></span><span style="color: rgb(0, 0, 255);">void</span><span style="color: rgb(0, 0, 0);">聽GetDiffRandomNum(</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽A[],聽</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽n)<br /><img id="Codehighlighter1_148_286_Open_Image" onclick="this.style.display='none'; Codehighlighter1_148_286_Open_Text.style.display='none'; Codehighlighter1_148_286_Closed_Image.style.display='inline'; Codehighlighter1_148_286_Closed_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedBlockStart.gif" align="top" /><img id="Codehighlighter1_148_286_Closed_Image" style="display: none;" onclick="this.style.display='none'; Codehighlighter1_148_286_Closed_Text.style.display='none'; Codehighlighter1_148_286_Open_Image.style.display='inline'; Codehighlighter1_148_286_Open_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ContractedBlock.gif" align="top" /></span><span id="Codehighlighter1_148_286_Closed_Text" style="border: 1px solid rgb(128, 128, 128); display: none; background-color: rgb(255, 255, 255);"><img src="http://m.shnenglu.com/images/dot.gif" /></span><span id="Codehighlighter1_148_286_Open_Text"><span style="color: rgb(0, 0, 0);">{<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽srand(unsigned(time(NULL)));<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽i</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">for</span><span style="color: rgb(0, 0, 0);">(</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽index聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽n</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">1</span><span style="color: rgb(0, 0, 0);">;聽index聽</span><span style="color: rgb(0, 0, 0);">></span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;聽index</span><span style="color: rgb(0, 0, 0);">--</span><span style="color: rgb(0, 0, 0);">)<br /><img id="Codehighlighter1_234_283_Open_Image" onclick="this.style.display='none'; Codehighlighter1_234_283_Open_Text.style.display='none'; Codehighlighter1_234_283_Closed_Image.style.display='inline'; Codehighlighter1_234_283_Closed_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" /><img id="Codehighlighter1_234_283_Closed_Image" style="display: none;" onclick="this.style.display='none'; Codehighlighter1_234_283_Closed_Text.style.display='none'; Codehighlighter1_234_283_Open_Image.style.display='inline'; Codehighlighter1_234_283_Open_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ContractedSubBlock.gif" align="top" />聽聽聽聽</span><span id="Codehighlighter1_234_283_Closed_Text" style="border: 1px solid rgb(128, 128, 128); display: none; background-color: rgb(255, 255, 255);"><img src="http://m.shnenglu.com/images/dot.gif" /></span><span id="Codehighlighter1_234_283_Open_Text"><span style="color: rgb(0, 0, 0);">{<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽聽聽聽聽i聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽rand()聽</span><span style="color: rgb(0, 0, 0);">%</span><span style="color: rgb(0, 0, 0);">聽index;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽聽聽聽聽swap(A[i],聽A[index]);<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top" />聽聽聽聽}</span></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedBlockEnd.gif" align="top" />}</span></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /></span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽main()<br /><img id="Codehighlighter1_301_922_Open_Image" onclick="this.style.display='none'; Codehighlighter1_301_922_Open_Text.style.display='none'; Codehighlighter1_301_922_Closed_Image.style.display='inline'; Codehighlighter1_301_922_Closed_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedBlockStart.gif" align="top" /><img id="Codehighlighter1_301_922_Closed_Image" style="display: none;" onclick="this.style.display='none'; Codehighlighter1_301_922_Closed_Text.style.display='none'; Codehighlighter1_301_922_Open_Image.style.display='inline'; Codehighlighter1_301_922_Open_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ContractedBlock.gif" align="top" /></span><span id="Codehighlighter1_301_922_Closed_Text" style="border: 1px solid rgb(128, 128, 128); display: none; background-color: rgb(255, 255, 255);"><img src="http://m.shnenglu.com/images/dot.gif" /></span><span id="Codehighlighter1_301_922_Open_Text"><span style="color: rgb(0, 0, 0);">{<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽<br /><img id="Codehighlighter1_316_318_Open_Image" onclick="this.style.display='none'; Codehighlighter1_316_318_Open_Text.style.display='none'; Codehighlighter1_316_318_Closed_Image.style.display='inline'; Codehighlighter1_316_318_Closed_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" /><img id="Codehighlighter1_316_318_Closed_Image" style="display: none;" onclick="this.style.display='none'; Codehighlighter1_316_318_Closed_Text.style.display='none'; Codehighlighter1_316_318_Open_Image.style.display='inline'; Codehighlighter1_316_318_Open_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ContractedSubBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽A[N]</span><span style="color: rgb(0, 0, 0);">=</span><span id="Codehighlighter1_316_318_Closed_Text" style="border: 1px solid rgb(128, 128, 128); display: none; background-color: rgb(255, 255, 255);"><img src="http://m.shnenglu.com/images/dot.gif" /></span><span id="Codehighlighter1_316_318_Open_Text"><span style="color: rgb(0, 0, 0);">{</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">}</span></span><span style="color: rgb(0, 0, 0);">;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">for</span><span style="color: rgb(0, 0, 0);">(</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽i</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;聽i</span><span style="color: rgb(0, 0, 0);"><</span><span style="color: rgb(0, 0, 0);">N;聽i</span><span style="color: rgb(0, 0, 0);">++</span><span style="color: rgb(0, 0, 0);">)<br /><img id="Codehighlighter1_352_378_Open_Image" onclick="this.style.display='none'; Codehighlighter1_352_378_Open_Text.style.display='none'; Codehighlighter1_352_378_Closed_Image.style.display='inline'; Codehighlighter1_352_378_Closed_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" /><img id="Codehighlighter1_352_378_Closed_Image" style="display: none;" onclick="this.style.display='none'; Codehighlighter1_352_378_Closed_Text.style.display='none'; Codehighlighter1_352_378_Open_Image.style.display='inline'; Codehighlighter1_352_378_Open_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ContractedSubBlock.gif" align="top" />聽聽聽聽</span><span id="Codehighlighter1_352_378_Closed_Text" style="border: 1px solid rgb(128, 128, 128); display: none; background-color: rgb(255, 255, 255);"><img src="http://m.shnenglu.com/images/dot.gif" /></span><span id="Codehighlighter1_352_378_Open_Text"><span style="color: rgb(0, 0, 0);">{<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽聽聽聽聽A[i]聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽i</span><span style="color: rgb(0, 0, 0);">+</span><span style="color: rgb(0, 0, 0);">1</span><span style="color: rgb(0, 0, 0);">;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top" />聽聽聽聽}</span></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽GetDiffRandomNum(A,聽N);<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 128, 0);">//</span><span style="color: rgb(0, 128, 0);">DISPLAY(A,聽N);</span><span style="color: rgb(0, 128, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /></span><span style="color: rgb(0, 0, 0);">聽聽聽聽<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽unsigned聽</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽sum聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">double</span><span style="color: rgb(0, 0, 0);">聽logSum聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">for</span><span style="color: rgb(0, 0, 0);">(i</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;聽i</span><span style="color: rgb(0, 0, 0);"><</span><span style="color: rgb(0, 0, 0);">N</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">2</span><span style="color: rgb(0, 0, 0);">;聽i</span><span style="color: rgb(0, 0, 0);">++</span><span style="color: rgb(0, 0, 0);">)<br /><img id="Codehighlighter1_513_595_Open_Image" onclick="this.style.display='none'; Codehighlighter1_513_595_Open_Text.style.display='none'; Codehighlighter1_513_595_Closed_Image.style.display='inline'; Codehighlighter1_513_595_Closed_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" /><img id="Codehighlighter1_513_595_Closed_Image" style="display: none;" onclick="this.style.display='none'; Codehighlighter1_513_595_Closed_Text.style.display='none'; Codehighlighter1_513_595_Open_Image.style.display='inline'; Codehighlighter1_513_595_Open_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ContractedSubBlock.gif" align="top" />聽聽聽聽</span><span id="Codehighlighter1_513_595_Closed_Text" style="border: 1px solid rgb(128, 128, 128); display: none; background-color: rgb(255, 255, 255);"><img src="http://m.shnenglu.com/images/dot.gif" /></span><span id="Codehighlighter1_513_595_Open_Text"><span style="color: rgb(0, 0, 0);">{<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽聽聽聽聽sum聽</span><span style="color: rgb(0, 0, 0);">+=</span><span style="color: rgb(0, 0, 0);">聽N</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">i</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">A[i];聽聽聽聽聽聽聽聽聽聽聽聽聽<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽聽聽聽聽logSum聽</span><span style="color: rgb(0, 0, 0);">+=</span><span style="color: rgb(0, 0, 0);">聽log(N</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">i)</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">log(A[i]);<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top" />聽聽聽聽}</span></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽sum聽</span><span style="color: rgb(0, 0, 0);">+=</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">2</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">+</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">1</span><span style="color: rgb(0, 0, 0);">;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽logSum聽</span><span style="color: rgb(0, 0, 0);">+=</span><span style="color: rgb(0, 0, 0);">聽log(</span><span style="color: rgb(0, 0, 0);">2</span><span style="color: rgb(0, 0, 0);">)</span><span style="color: rgb(0, 0, 0);">+</span><span style="color: rgb(0, 0, 0);">log(</span><span style="color: rgb(0, 0, 0);">1</span><span style="color: rgb(0, 0, 0);">);<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">double</span><span style="color: rgb(0, 0, 0);">聽multi聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽exp(logSum);<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 128, 0);">//</span><span style="color: rgb(0, 128, 0);">涓ゆ暟鐨勫拰涓庣Н</span><span style="color: rgb(0, 128, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /></span><span style="color: rgb(0, 0, 0);">聽聽聽聽cout</span><span style="color: rgb(0, 0, 0);"><<</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">(sum)</span><span style="color: rgb(0, 0, 0);"><<</span><span style="color: rgb(0, 0, 0);">'</span><span style="color: rgb(0, 0, 0);">\t</span><span style="color: rgb(0, 0, 0);">'</span><span style="color: rgb(0, 0, 0);"><<</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">(multi)</span><span style="color: rgb(0, 0, 0);"><<</span><span style="color: rgb(0, 0, 0);">endl;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 128, 0);">//</span><span style="color: rgb(0, 128, 0);">姹傚嚭涓ゆ暟</span><span style="color: rgb(0, 128, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" /></span><span style="color: rgb(0, 0, 0);">聽聽聽聽</span><span style="color: rgb(0, 0, 255);">for</span><span style="color: rgb(0, 0, 0);">(i</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">1</span><span style="color: rgb(0, 0, 0);">;聽i</span><span style="color: rgb(0, 0, 0);"><=</span><span style="color: rgb(0, 0, 0);">N;聽i</span><span style="color: rgb(0, 0, 0);">++</span><span style="color: rgb(0, 0, 0);">)<br /><img id="Codehighlighter1_770_904_Open_Image" onclick="this.style.display='none'; Codehighlighter1_770_904_Open_Text.style.display='none'; Codehighlighter1_770_904_Closed_Image.style.display='inline'; Codehighlighter1_770_904_Closed_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockStart.gif" align="top" /><img id="Codehighlighter1_770_904_Closed_Image" style="display: none;" onclick="this.style.display='none'; Codehighlighter1_770_904_Closed_Text.style.display='none'; Codehighlighter1_770_904_Open_Image.style.display='inline'; Codehighlighter1_770_904_Open_Text.style.display='inline';" src="http://m.shnenglu.com/images/OutliningIndicators/ContractedSubBlock.gif" align="top" />聽聽聽聽</span><span id="Codehighlighter1_770_904_Closed_Text" style="border: 1px solid rgb(128, 128, 128); display: none; background-color: rgb(255, 255, 255);"><img src="http://m.shnenglu.com/images/dot.gif" /></span><span id="Codehighlighter1_770_904_Open_Text"><span style="color: rgb(0, 0, 0);">{<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽聽聽聽聽</span><span style="color: rgb(0, 0, 255);">double</span><span style="color: rgb(0, 0, 0);">聽temp聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽i</span><span style="color: rgb(0, 0, 0);">*</span><span style="color: rgb(0, 0, 0);">(sum</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">i);<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽聽聽聽聽</span><span style="color: rgb(0, 0, 255);">if</span><span style="color: rgb(0, 0, 0);">(multi</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">0.5</span><span style="color: rgb(0, 0, 0);"><=</span><span style="color: rgb(0, 0, 0);">temp聽</span><span style="color: rgb(0, 0, 0);">&&</span><span style="color: rgb(0, 0, 0);">聽temp聽</span><span style="color: rgb(0, 0, 0);"><=</span><span style="color: rgb(0, 0, 0);">聽multi</span><span style="color: rgb(0, 0, 0);">+</span><span style="color: rgb(0, 0, 0);">0.5</span><span style="color: rgb(0, 0, 0);">)<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽聽聽聽聽聽聽聽聽cout</span><span style="color: rgb(0, 0, 0);"><<</span><span style="color: rgb(0, 0, 0);">i</span><span style="color: rgb(0, 0, 0);"><<</span><span style="color: rgb(0, 0, 0);">'</span><span style="color: rgb(0, 0, 0);">\t</span><span style="color: rgb(0, 0, 0);">'</span><span style="color: rgb(0, 0, 0);"><<</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">(sum</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">i)</span><span style="color: rgb(0, 0, 0);"><<</span><span style="color: rgb(0, 0, 0);">endl;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedSubBlockEnd.gif" align="top" />聽聽聽聽}</span></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/InBlock.gif" align="top" />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">return</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;<br /><img src="http://m.shnenglu.com/images/OutliningIndicators/ExpandedBlockEnd.gif" align="top" />}</span></span><span style="color: rgb(0, 0, 0);"><br /><img src="http://m.shnenglu.com/images/OutliningIndicators/None.gif" align="top" /></span></div><br /><br />PS錛堣阿璋㈡灊~鐨勫府鍔╋級璇峰ぇ瀹舵寚瀵?br /><br />//................................<br />閫氳繃澶у鐨勫府鍔╋細<br />寰楀埌鍙︿竴涓啓娉曪紝涓嶄細浜х敓綺懼害闂<br /><br />(1+N)*N /2 - S = a + b<br />1/6 * n*(n + 1)*(2n + 1) - X = a*a + b*b<br /><br />娉細<br />1/6 * n*(n + 1)*(2n + 1)=1*1 + 2*2 + 3*3 +...+N*N<br />X = A[0]*A[0] + A[1]*A[1] +...A[N-3]*A[N-3]<br />聽 <br />==><br />a + b = m<br />a*a + b*b = n<br /><br />鐢變簬鍙В鍑篴,b<br /><br /><div style="border: 1px solid rgb(204, 204, 204); padding: 4px 5px 4px 4px; background-color: rgb(238, 238, 238); font-size: 13px; width: 98%;"><!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--><span style="color: rgb(0, 0, 0);">聽聽聽聽unsigned聽</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽sum聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;<br />聽聽聽聽unsigned聽</span><span style="color: rgb(0, 0, 255);">int</span><span style="color: rgb(0, 0, 0);">聽sqrSum聽</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;<br /><br />聽聽聽聽</span><span style="color: rgb(0, 0, 255);">for</span><span style="color: rgb(0, 0, 0);">(i</span><span style="color: rgb(0, 0, 0);">=</span><span style="color: rgb(0, 0, 0);">0</span><span style="color: rgb(0, 0, 0);">;聽i</span><span style="color: rgb(0, 0, 0);"><</span><span style="color: rgb(0, 0, 0);">N</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">2</span><span style="color: rgb(0, 0, 0);">;聽i</span><span style="color: rgb(0, 0, 0);">++</span><span style="color: rgb(0, 0, 0);">)<br />聽聽聽聽{<br />聽聽聽聽聽聽聽聽sum聽</span><span style="color: rgb(0, 0, 0);">+=</span><span style="color: rgb(0, 0, 0);">聽N</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">i</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">A[i];聽聽聽聽聽聽聽<br />聽聽聽聽聽聽聽聽sqrSum聽</span><span style="color: rgb(0, 0, 0);">+=</span><span style="color: rgb(0, 0, 0);">聽((N</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">i)</span><span style="color: rgb(0, 0, 0);">*</span><span style="color: rgb(0, 0, 0);">(N</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">i))聽</span><span style="color: rgb(0, 0, 0);">-</span><span style="color: rgb(0, 0, 0);">聽((A[i])</span><span style="color: rgb(0, 0, 0);">*</span><span style="color: rgb(0, 0, 0);">A[i]);<br />聽聽聽聽聽<br />聽聽聽聽}<br />聽聽聽聽sum聽</span><span style="color: rgb(0, 0, 0);">+=</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">2</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">+</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">1</span><span style="color: rgb(0, 0, 0);">;聽<br />聽聽聽聽sqrSum聽</span><span style="color: rgb(0, 0, 0);">+=</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">2</span><span style="color: rgb(0, 0, 0);">*</span><span style="color: rgb(0, 0, 0);">2</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">+</span><span style="color: rgb(0, 0, 0);">聽</span><span style="color: rgb(0, 0, 0);">1</span><span style="color: rgb(0, 0, 0);">*</span><span style="color: rgb(0, 0, 0);">1</span><span style="color: rgb(0, 0, 0);">;</span></div><br /><br /><br /><br /><img src ="http://m.shnenglu.com/021742/aggbug/20386.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/021742/" target="_blank">鐚ご楗?/a> 2007-03-22 23:14 <a href="http://m.shnenglu.com/021742/archive/2007/03/22/20386.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>KMP綆楁硶璧勬枡http://m.shnenglu.com/021742/archive/2006/11/10/14936.html鐚ご楗?/dc:creator>鐚ご楗?/author>Thu, 09 Nov 2006 17:51:00 GMThttp://m.shnenglu.com/021742/archive/2006/11/10/14936.htmlhttp://m.shnenglu.com/021742/comments/14936.htmlhttp://m.shnenglu.com/021742/archive/2006/11/10/14936.html#Feedback0http://m.shnenglu.com/021742/comments/commentRss/14936.htmlhttp://m.shnenglu.com/021742/services/trackbacks/14936.html鐪嬩簡涓や笁澶╃殑KMP綆楁硶,涓鐩寸湅鐨勮糠榪風硦緋婄殑.鐜板湪鎶婅繖浜涜祫鏂欒創鍦ㄨ繖閲?..浠ュ鏃ュ悗涔嬮渶

1.涓茬殑妯″紡鍖歸厤鐨勬敼榪涚畻娉?榪欎釜緗戠珯瀵規垜鐨勭悊瑙e府鍔╁緢澶?鐗瑰埆鏄彸杈圭殑閭e潡璇存槑閮ㄥ垎,浠ュ墠鑷繁鑴戠瓔鑰佹槸杞笉榪囨潵) http://cist.dhu.edu.cn/kejian/%CA%FD%BE%DD%BD%E1%B9%B9%BE%AB%C6%B7%BF%CE%B3%CC/%D4%DA%CF%DF%D1%A7%CF%B0/text/chapter04/section3/c5.htm

2.KMP 綆楁硶鐨勬敞璁?http://www.cublog.cn/u/20/showart_136705.html

3.KMP綆楁硶涓帹瀵糿ext[],nextval[]--鎵嬭 http://jiasimon040510.t8log.ccut.cn/blog-htm-do-showone-tid-6983.html


4.綆楁硶鍘熺悊錛?

鍦ㄥ尮閰嶈繃鍜屼腑錛屽綋涓諱覆涓i涓瓧絎︿笌妯″紡涓蹭腑絎琷涓瓧絎︹滃け閰嶁濇椂錛坰[i]!=t[j])錛屽皢妯″紡涓插敖閲忓悜鍙崇Щ鍔紝璁╂ā寮忎覆涓k錛坘<j)涓瓧絎︿笌si瀵歸綈緇х畫姣旇緝,

瑕佽榪欎釜鏉′歡鎴愮珛錛岄偅涔堝湪k涔嬪墠鐨刱涓猼瀛楃[0 鍒?k-1]蹇呴』鍦╥涔嬪墠鐨刱涓猻瀛楃[i-k 鍒?i-1]鐩稿尮閰嶅嵆錛?/p>

聽聽 t[0, 1, 2...k-1] == s[i-k, i-k+1, i-k+2...i-1]聽聽聽聽 ---(1)

鑰岀敱涔嬪墠鐨勯儴鍒嗗尮閰嶆垚鍔熺殑緇撴灉鍙煡錛?br />聽聽
聽聽 t[0, 1, 2...j-1] == s[i-j, i-j+1, i-j+2...i-1]聽聽聽聽 ---(2)
==>
聽聽 t[j-k, j-k+1, j-k+2...j-1] == s[i-k, i-k+1, i-k+2...i-1]聽聽 --(3)

鐢?1)涓?3)鍙緱錛?/p>

聽聽 t[0, 1, 2...k-1] == t[j-k, j-k+1, j-k+2...j-1]聽聽聽聽 ---(4)

姹傚嚭k鍊?灝辨槸next[j]鐨勫間簡

鎬諱箣,鐩稿鎴戞潵璇?綆楁硶涓嶆槸寰堝ソ鎳?浣嗘槸澶у鐪嬪埌鎴戣繖涔堢鐨勪漢鍒版渶鍚庨兘鑳芥槑鐧戒竴浜?澶у灝辨洿娌℃湁鐞嗙敱鐪嬩笉鎳備簡,紲濆ぇ瀹舵垚鍔熼檮涓婃垜鐨勬祴璇曟簮鐮?



#include聽
< iostream >

using namespace 聽std;


void 聽GetNext( char 聽t[],聽 int 聽next[])
{
聽聽聽聽
int 聽j聽 = 0 ;
聽聽聽聽
int 聽k聽 = - 1 ;
聽聽聽聽next[j]聽
= 聽k;
聽聽聽聽
int 聽tlen聽 = 聽strlen(t);

聽聽聽聽
while (j < tlen)
聽聽聽聽
{
聽聽聽聽聽聽聽聽
if (k聽 == - 1 || 聽t[j]聽 == 聽t[k])
聽聽聽聽聽聽聽聽
{
聽聽聽聽聽聽聽聽聽聽聽聽j
++ ;
聽聽聽聽聽聽聽聽聽聽聽聽k
++ ;
聽聽聽聽聽聽聽聽聽聽聽聽
if (t[j]聽 == 聽t[k])
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next[j]聽
= 聽next[k];
聽聽聽聽聽聽聽聽聽聽聽聽}

聽聽聽聽聽聽聽聽聽聽聽聽
else
聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽next[j]聽
= 聽k;
聽聽聽聽聽聽聽聽}

聽聽聽聽聽聽聽聽
else
聽聽聽聽聽聽聽聽
{
聽聽聽聽聽聽聽聽聽聽聽聽k聽
= 聽next[k];
聽聽聽聽聽聽聽聽}

聽聽聽聽}

}



int 聽KMP( char 聽s[],聽 char 聽t[],聽 int 聽pos,聽 int 聽next[])
{
聽聽聽聽
int 聽slen聽 = 聽strlen(s);
聽聽聽聽
int 聽tlen聽 = 聽strlen(t);
聽聽聽聽
int 聽i聽 = 0 ;
聽聽聽聽
int 聽j聽 = 0 ;

聽聽聽聽
while (i < slen聽 && 聽j < tlen)
聽聽聽聽
{
聽聽聽聽聽聽聽聽
if (j聽 == - 1 || 聽s[i]聽 == 聽t[j])
聽聽聽聽聽聽聽聽
{
聽聽聽聽聽聽聽聽聽聽聽聽i
++ ;
聽聽聽聽聽聽聽聽聽聽聽聽j
++ ;
聽聽聽聽聽聽聽聽}

聽聽聽聽聽聽聽聽
else
聽聽聽聽聽聽聽聽
{
聽聽聽聽聽聽聽聽聽聽聽聽j聽
= 聽next[j];聽聽聽聽
聽聽聽聽聽聽聽聽}

聽聽聽聽}


聽聽聽聽
if (j聽 == 聽tlen)
聽聽聽聽
{
聽聽聽聽聽聽聽聽
return 聽i - tlen;
聽聽聽聽}

聽聽聽聽
else
聽聽聽聽聽聽聽聽
return - 1 ;
}


int 聽main聽( int 聽argc,聽 char ** argv)
{
聽聽聽聽
聽聽聽聽
char 聽s[]聽 = " aaaabaabaaabaaabaaaaabaaabaaabaaabaaabaaabaaabaaabaaabaaabacb " ;
聽聽聽聽
聽聽聽聽
char 聽t[]聽 = " aabaaa " ;

聽聽聽聽
int 聽next[ 20 ] = { 0 } ;
聽聽聽聽GetNext(t,聽next);聽聽聽聽
聽聽聽聽
for ( int 聽i = 0 ;聽i < 20 ;聽i ++ )
聽聽聽聽聽聽聽聽cout
<< " next[ " << i << " ]:聽聽 " << next[i] << endl;
聽聽聽聽
聽聽聽聽cout
<< KMP(s,聽t,聽 0 ,聽next) << endl;
}


]]>
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