{"id":206,"date":"2012-10-24T13:33:00","date_gmt":"2012-10-24T05:33:00","guid":{"rendered":"http:\/\/nike0good.jp1.rpvhost.net\/111"},"modified":"2012-10-24T13:33:00","modified_gmt":"2012-10-24T05:33:00","slug":"poj_3270cow_sorting","status":"publish","type":"post","link":"https:\/\/nike0good.com\/?p=206","title":{"rendered":"POJ 3270(Cow Sorting)"},"content":{"rendered":"

\u8fd9\u9898\u4e3b\u8981\u662f\u4ea4\u6362\u65f6\u8981\u6c42\u4ee3\u4ef7\u6700\u5c0f<\/p>\n

\u5148\u627e\u5230\u73af   \u76f8\u540c\u6570\u5b57 \u4e0e   \u540c\u5217 \u76f8\u8fde<\/p>\n

1  \u7b2c\u4e00\u884c\u4e3a\u8d77\u59cb\u5e8f\u5217   \u7b2c\u4e8c\u884c\u4e3a\u76ee\u6807\u5e8f\u5217<\/p>\n

   \"\"1 <\/span>3 <\/span>4 2 <\/span>5<\/h1>\n

   1 <\/span>2 <\/span>
\n3 <\/span>4 <\/span>5<\/h1>\n
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\n<\/div>\n
\n<\/div>\n

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\n<\/p>\n<\/p>\n

   1 <\/span>3 <\/span>
\n2 <\/span>4 <\/span>5<\/h1>\n
<\/span><\/div>\n

   1 <\/span>2 <\/span>
\n3 <\/span>4 <\/span>5<\/h1>\n

<\/p>\n

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   1 <\/span>2 <\/span>
\n3 <\/span>4 <\/span>5<\/h1>\n

<\/p>\n

\n<\/p>\n

\n<\/p>\n

\u6216\u5219\u8c03\u6765\u5e8f\u5217\u4e2d\u6700\u5c0f\u7684\u90a3\u4e2a\u6570\u4e0e\u73af\u4e2d\u6700\u5c0f\u6570\u66ff\u6362\uff08\u4e58\u8239\u95ee\u9898\uff1f\uff09<\/p>\n

\n<\/p>\n

\n<\/p>\n

\u8fd9\u6837\u5c31\u80fd\u5f97\u5230\u6700\u4f18\u89e3<\/p>\n

\n<\/p>\n

ans+=min(  (sizi-2)*mini+sumi,<\/span> <\/h2>\n

<\/span>    (sizi+1)*minn+mini+sumi<\/strong><\/h2>\n

\n<\/p>\n

\n<\/p>\n<\/p>\n

#include<cstdio>\n#include<cmath>\n#include<iostream>\n#include<cstdlib>\n#include<cstring>\n#include<functional>\n#include<algorithm>\nusing namespace std;\n#define MAXN (10000+10)\n#define MAXAI (100000+10)\nint n,a[MAXN],a2[MAXN],hpos[MAXAI],ans=0;\nbool b[MAXN];\n\nint main()\n{\n\/\/\tfreopen("cowsorting.in","r",stdin);\n\tscanf("%d",&n);\n\tfor (int i=1;i<=n;i++) scanf("%d",&a[i]);\n\tmemcpy(a2,a,sizeof(a));\n\tsort(a2+1,a2+1+n,less<int>());\n\tint minn=a2[1];\n\tmemset(b,false,sizeof(b));\n\tfor (int i=1;i<=n;i++)\n\t\thpos[a[i]]=i;\n\n\n\tfor (int i=1;i<=n;i++)\n\t{\n\/\/\t\tcout<<a2[i]<<' '<<a[i]<<endl;\n\t\tif (!b[i]&&a2[i]!=a[i])\n\t\t{\n\t\t\tb[i]=1;\n\t\t\tint mini=a[i],start=i,sizi=1,sumi=a[i];\n\t\t\tint now=hpos[a2[i]];\n\t\t\twhile (now!=start)\n\t\t\t{\n\t\t\t\tb[now]=1;\n\t\t\t\tsizi++;\n\t\t\t\tsumi+=a[now];\n\t\t\t\tmini=min(mini,a[now]);\n\t\t\t\tnow=hpos[a2[now]];\n\t\t\t}\n\t\t\tans+=min((sizi-2)*mini+sumi,(sizi+1)*minn+mini+sumi);\n\n\t\t}\n\t}\n\n\n\n\n\n\/\/\/000\n\/\/\tfor (int i=1;i<=n;i++) printf("%d ",a2[i]);\n\/\/\/000\n\tprintf("%dn",ans);\n\n\/\/\twhile (1);\n\treturn 0;\n}\n<\/pre><\/p>\n","protected":false},"excerpt":{"rendered":"
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