{"id":149,"date":"2012-08-17T12:59:00","date_gmt":"2012-08-17T04:59:00","guid":{"rendered":"http:\/\/nike0good.jp1.rpvhost.net\/37"},"modified":"2012-08-17T12:59:00","modified_gmt":"2012-08-17T04:59:00","slug":"poj_12073n1","status":"publish","type":"post","link":"https:\/\/nike0good.com\/?p=149","title":{"rendered":"POJ 1207(3N+1)"},"content":{"rendered":"<p>3n&#43;1\u95ee\u9898 \u679c\u65ad\u66b4\u529b<\/p>\n<p>\n<\/p>\n<p><pre name=\"code\" class=\"delphi\">Program P1207;\nvar\n   i,j,k,n,m,ans:longint;\nfunction max(a,b:longint):longint;\nbegin\n   if a&gt;b then exit(a) else exit(b);\nend;\nprocedure swap(var a,b:longint);\nvar\n   p:longint;\nbegin\n   p:=a;\n   a:=b;\n   b:=p;\nend;\nbegin\n   while not eof do\n   begin\n      readln(n,m);\n      write(n,' ',m,' ');\n      if n&gt;m then swap(n,m);\n      ans:=0;\n      for i:=n to m do\n      begin\n         j:=1;\n         k:=i;\n         while (k&lt;&gt;1) do\n         begin\n            if (k mod 2=0) then k:=k div 2\n            else k:=k*3+1;\n            inc(j);\n         end;\n\n         ans:=max(ans,j);\n      end;\n      writeln(ans);\n   end;\nend.<\/pre><\/p>\n","protected":false},"excerpt":{"rendered":"<p>3n&#43;1\u95ee\u9898 \u679c\u65ad\u66b4\u529b Program P1207; var i,j,k,n,m,ans:longin [&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":[88],"class_list":["post-149","post","type-post","status-publish","format-standard","hentry","category-defaultcategory","tag-miscellaneous_questions"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>POJ 1207(3N+1) - nike0good<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nike0good.com\/?p=149\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"POJ 1207(3N+1) - nike0good\" \/>\n<meta property=\"og:description\" content=\"3n&#043;1\u95ee\u9898 \u679c\u65ad\u66b4\u529b Program P1207; 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