{"id":352,"date":"2013-03-13T12:01:00","date_gmt":"2013-03-13T04:01:00","guid":{"rendered":"http:\/\/nike0good.jp1.rpvhost.net\/256"},"modified":"2013-03-13T12:01:00","modified_gmt":"2013-03-13T04:01:00","slug":"two_sub-sequence__identifiers","status":"publish","type":"post","link":"https:\/\/nike0good.com\/?p=352","title":{"rendered":"\u4e24\u4e2a\u5b50\u5e8f\u5217(\uff1f\u6807\u8bc6\u7b26)"},"content":{"rendered":"<p>Problem 1 \u4e24\u4e2a\u5b50\u5e8f\u5217(twosub.pas\/c\/cpp)<\/p>\n<p>\u3010\u9898\u76ee\u63cf\u8ff0\u3011<\/p>\n<p>\u5c06\u7ed9\u5b9a\u7684n\u4e2a\u957f\u5ea6\u4e3aM\u768401\u4e32\u5e8f\u5217{a1,a2\u2026an} \u5206\u4e3a\u4e24\u4e2a\u5b50\u5e8f\u5217{b1,b2\u2026bk}\u548c{c1,c2\u2026cm}\uff0cm&#43;k=n,\u4f7f|f(b1,b2\u2026bk)|&#43;|f(c1,c2\u2026cm)|\u6700\u5c0f\u5316\u3002<\/p>\n<p>f\u51fd\u6570\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n<p>f(\u7a7a\u5e8f\u5217)=\u7a7a\u4e32<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; f(s)=s<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; f(s1,s2)=\u6700\u5c0f\u957f\u5ea6\u7684\u6709\u4e00\u4e2a\u524d\u7f00\u7b49\u4e8es1\u5e76\u4e14\u6709\u4e00\u4e2a\u540e\u7f00\u7b49\u4e8es2\u7684\u5b57\u7b26\u4e32\u3002 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; f(a1,a2,\u2026,an)=f(f(a1,a2,\u2026,an-1),an)\u3002\n<\/p>\n<p>&nbsp;<\/p>\n<p>\u3010\u8f93\u5165&#26684;\u5f0f\u3011<\/p>\n<p>\u7b2c\u4e00\u884c\u4e24\u4e2a\u6574\u6570n\u3002<\/p>\n<p>\u63a5\u4e0b\u6765n\u884c\u6bcf\u884c\u4e00\u4e2a\u957f\u5ea6\u4e3aM\u768401\u4e32\uff0c\u8868\u793aa1\uff0ca2...an\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3010\u8f93\u51fa&#26684;\u5f0f\u3011<\/p>\n<p>\u8f93\u51fa\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u7b54\u6848\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3010\u6837\u4f8b\u8f93\u5165\u3011<\/p>\n<p>4<br \/>\n000<br \/>\n111<br \/>\n110<br \/>\n001<\/p>\n<p>\u3010\u6837\u4f8b\u8f93\u51fa\u3011<\/p>\n<p>8<\/p>\n<p>\u3010\u6570\u636e\u8303\u56f4\u3011<\/p>\n<p>\u5bf9\u4e8e30%\u7684\u6570\u636e\uff0cn&lt;=20<\/p>\n<p>\u5bf9\u4e8e60%\u7684\u6570\u636e\uff0cn&lt;=2000<\/p>\n<p>\u5bf9\u4e8e100%\u7684\u6570\u636e\uff0c1&lt;=n&lt;=200000\uff0c1&lt;=M&lt;=20<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size:14px\">&nbsp;\u8fd9\u9898\u8981\u7528\u540e\u7f00DP<\/span><\/p>\n<p><span style=\"font-size:14px\">f[i][j]\u8868\u793a\u975e\u5f53\u524d\u679a\u4e3e\u70b9\u7ed3\u5c3e\u7684\u90a3\u4e2a\u5b57\u7b26\u4e32\u7ed3\u5c3e\u4e3ai<\/span><\/p>\n<p><span style=\"font-size:14px\"><img decoding=\"async\" src=\"http:\/\/nike0good.jp1.rpvhost.net\/wp-content\/uploads\/csdn\/other_site\/img_my_1363147528_4383.png\" alt=\"\" \/><br \/>\n<\/span><\/p>\n<p><span style=\"font-size:14px\"><br \/>\n<\/span><\/p>\n<p><span style=\"font-size:14px\"><\/span><\/p>\n<pre name=\"code\" class=\"cpp\">#include&lt;cstdio&gt;\n#include&lt;cstring&gt;\n#include&lt;cstdlib&gt;\n#include&lt;algorithm&gt;\n#include&lt;functional&gt;\n#include&lt;cmath&gt;\n#include&lt;iostream&gt;\nusing namespace std;\n#define MAXN (200000+10)\n#define MAXM (20+10)\n#define MAXSum (1&lt;&lt;20)\nint n,m,f[MAXSum][MAXM],a[MAXN],bin[MAXM];\nchar s[MAXM];\nint main()\n{\n\tfreopen(&quot;twosub.in&quot;,&quot;r&quot;,stdin);\n\tfreopen(&quot;twosub.out&quot;,&quot;w&quot;,stdout);\n\tscanf(&quot;%d&quot;,&amp;n);\n\tmemset(f,128,sizeof(f));\n\tmemset(a,0,sizeof(a));\n\tfor (int i=1;i&lt;=n;i++)\n\t{\n\t\tscanf(&quot;%s&quot;,s);\n\t\tm=strlen(s);\n\t\tfor (int j=0;j&lt;m;j++) a[i]=(a[i]&lt;&lt;1)+s[j]-48;\n\t}\n\tint tot=0;\n\tbin[0]=0;\n\tfor (int i=1;i&lt;=20;i++) bin[i]=(1&lt;&lt;i)-1;\n\tint ans=n*m;\n\tfor (int i=2;i&lt;=n;i++)\n\t{\n\t\tint k=m;\n\t\twhile (k&amp;&amp;((bin[k]&amp;a[i-1])!=a[i]&gt;&gt;(m-k)))\n\t\t{\n\t\t\/\/\tcout&lt;&lt;(bin[k]&amp;a[i-1])&lt;&lt;' '&lt;&lt;a[i]&lt;&lt;m-k&lt;&lt;(a[i]&gt;&gt;(m-k))&lt;&lt;endl;\n\t\t\tk--;\n\t\t}\n\t\/\/\tcout&lt;&lt;k&lt;&lt;endl;\n\t\tans-=k;\n\t\tint temp=0;\n\t\tfor (int j=0;j&lt;=m;j++) temp=max(temp,f[a[i]&gt;&gt;j][m-j]+m-j);\n\t\tfor (int j=0;j&lt;=m;j++) f[a[i-1]&amp;bin[j]][j]=max(f[a[i-1]&amp;bin[j]][j],temp-k);\n\t}\n\tint temp=0;\n\tfor (int j=0;j&lt;=m;j++)\n\t\tfor (int i=0;i&lt;=bin[j];i++) temp=max(temp,f[i][j]);\n\tcout&lt;&lt;ans-temp;\n\treturn 0;\n}<\/pre><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Problem 1 \u4e24\u4e2a\u5b50\u5e8f\u5217(twosub.pas\/c\/cpp) \u3010\u9898\u76ee\u63cf\u8ff0\u3011 \u5c06\u7ed9\u5b9a\u7684n\u4e2a\u957f\u5ea6\u4e3aM\u768401\u4e32 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[3],"tags":[70],"class_list":["post-352","post","type-post","status-publish","format-standard","hentry","category-defaultcategory","tag-string_dp"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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