{"id":323,"date":"2013-02-03T16:18:00","date_gmt":"2013-02-03T08:18:00","guid":{"rendered":"http:\/\/nike0good.jp1.rpvhost.net\/228"},"modified":"2013-02-03T16:18:00","modified_gmt":"2013-02-03T08:18:00","slug":"fzu_noip_1036_disk_fragmentation_finishing-dp","status":"publish","type":"post","link":"https:\/\/nike0good.com\/?p=323","title":{"rendered":"fzu_noip 1036(\u78c1\u76d8\u788e\u7247\u6574\u7406-Dp)"},"content":{"rendered":"

\u78c1\u76d8\u788e\u7247\u6574\u7406<\/span><\/p>\n

\u65f6\u9650\uff1a<\/span>1s
\n<\/span>\u5185\u5b58\uff1a<\/span>32M<\/span><\/p>\n

\u2605\u95ee\u9898\u63cf\u8ff0: <\/span><\/strong><\/p>\n

Jack\u6700\u8fd1\u5728PS\u6d77\u62a5\u3002\u6d77\u62a5\u6240\u9700\u5404\u79cd\u7d20\u6750\u4e0d\u4f46\u8ba9Jack\u5934\u5927\uff0c\u4e5f\u8ba9\u786c\u76d8\u5206\u533a\u4e2d\u7684\u6587\u4ef6\u788e\u7247\u8d8a\u6765\u8d8a\u591a\uff0c\u7535\u8111\u7684\u53cd\u5e94\u901f\u5ea6\u8d8a\u6765\u8d8a\u6162\u3002<\/p>\n

\u70e6\u607c\u7684Jack\u51b3\u5b9a\u597d\u597d\u6574\u7406\u4e00\u4e0b\u78c1\u76d8\u7684\u788e\u7247\u3002\u4f46\u662f\uff0c\u4e3a\u4e86\u4f53\u73b0\u9ad8\u624b\u98ce\u8303\uff0c\u81ea\u8d1f\u7684Jack\u4e0d\u559c\u6b22\u7cfb\u7edf\u81ea\u5e26\u7684\u6574\u7406\u5de5\u5177\uff0c\u51b3\u5b9a\u81ea\u5df1\u7f16\u5199\u4e00\u4e2a\uff0c\u5e0c\u671b\u4f60\u5e2e\u4ed6\u5b8c\u6210\u7b80\u5355\u7684\u7b2c\u4e00\u904d\u6574\u7406\u3002<\/p>\n

\u56e0\u4e3a\u4e0d\u53ef\u79fb\u52a8\u7684\u7cfb\u7edf\u6587\u4ef6\u7684\u5206\u9694\uff0cJack\u7684N\u4e2a\u6587\u4ef6\uff0c\u5206\u4e3a\u8bb8\u591a\u6587\u4ef6\u5757\uff0c\u6742\u4e71\u5206\u5e03\u5728M\u4e2a\u957f\u5ea6\u4e0d\u7b49\u7684\u533a\u95f4\u4e2d\u3002\u5728\u7b2c\u4e00\u904d\u6574\u7406\u65f6\uff0c\u53ea\u5c06\u6bcf\u4e2a\u533a\u95f4\u4e2d\u7684\u788e\u7247\u8fdb\u884c\u987a\u5e8f\u6539\u53d8\uff0c\u4e0d\u8de8\u533a\u95f4\u79fb\u52a8\u3002<\/p>\n

\u56e0\u4e3a\u5728Jack\u5b8c\u6210\u7684\u7b2c\u4e8c\u6b21\u6574\u7406\u65f6\uff0c\u5c06\u628aM\u4e2a\u533a\u95f4\u4f9d\u987a\u5e8f\u8fde\u63a5\u6210\u4e00\u4e2a\u5b8c\u6574\u533a\u95f4\uff0c\u5e0c\u671b\u6574\u7406\u5b8c\u6210\u540e\uff0c\u96f6\u788e\u5ea6\u8d8a\u4f4e\u8d8a\u597d\u3002\uff08\u82e5\u8fde\u63a5\u540e\u7684\u5b8c\u6574\u533a\u95f4\uff0c\u6587\u4ef6\u5757i\u4e0e\u6587\u4ef6\u5757i+1\u5c5e\u4e8e\u4e0d\u540c\u6587\u4ef6\uff0c\u5219\u96f6\u788e\u5ea6+1\uff09\u3002<\/p>\n

\u4f8b\uff1a<\/p>\n

N=5 M=3<\/p>\n

\u5b58\u50a8\u533a\u95f41\uff1a\u957f\u5ea63 \u6587\u4ef6\u5757[4,3,1]<\/p>\n

\u5b58\u50a8\u533a\u95f42\uff1a\u957f\u5ea64 \u6587\u4ef6\u5757[2,1,4,4]<\/p>\n

\u5b58\u50a8\u533a\u95f43\uff1a\u957f\u5ea63 \u6587\u4ef6\u5757[1,3,1]<\/p>\n

\u7b2c\u4e00\u6b21\u6574\u7406\uff0c\u7b2c\u4e8c\u6b21\u8fde\u63a5\u540e\uff1a[1,3,4][4,4,2,1][1,1,3]\uff0c\u96f6\u788e\u5ea6\u4e3a5<\/p>\n

\u2605\u6570\u636e\u8f93\u5165\uff1a<\/span><\/strong><\/p>\n

\u7b2c\u4e00\u884cn m(1<=n<=10,1<=m<=10000),\u8868\u793a\u6709n\u4e2a\u6587\u4ef6\uff0cm\u4e2a\u5b58\u50a8\u533a\u95f4\u3002<\/p>\n

\u63a5\u4e0b\u6765m\u884c\uff0c\u6bcf\u884c\u7b2c\u4e00\u4e2a\u6574\u6570\u4e3aLi\uff080<Li<=50\uff09\uff0c\u8868\u793a\u5b58\u50a8\u533a\u95f4i\u7684\u957f\u5ea6\u3002\u63a5\u4e0b\u6765Li\u4e2a\u6574\u6570\uff0c\u5206\u522b\u8868\u793a\u8be5\u533a\u95f4\u7b2cj\u6587\u4ef6\u5757\u6240\u5c5e\u6587\u4ef6\u3002<\/p>\n

\u2605\u7ed3\u679c\u8f93\u51fa: <\/span><\/strong><\/p>\n

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\n\n\n\n\n
\n

\u8f93\u5165\u793a\u4f8b<\/span><\/strong><\/p>\n<\/td>\n

\n

\u8f93\u51fa\u793a\u4f8b<\/span><\/strong><\/p>\n<\/td>\n<\/tr>\n

\n

5 3<\/p>\n

3 4 3 1<\/p>\n

4 2 1 4 4<\/p>\n

3 1 3 1<\/p>\n<\/td>\n

\n

5<\/p>\n

 <\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n

\u7b80\u5355Dp\uff0cf[i][j]\u8868\u793a\u5230\u7b2ci\u5757\u786c\u76d8\u524d\u9762\u63a5j\u80fd\u53d6\u5f97\u7684\u6700\u5927\u5934\u5c3e\u8fde\u63a5\u6570(\u5f00\u59cb\u90a3\u4e2a\u9ed8\u8ba4\u4e0e\u4e4b\u524d\u7684\u8fde\u63a5\uff09\uff0c\u5219<\/span><\/p>\n


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

F[i][j]=| max(f[i][l[j]],f[i-1][k]+(b[i-1][l[j]]&&(k!=l[j]||pre_size==1))) (i>1)<\/span><\/p>\n

          |1 <\/span>
\n(i=1)<\/span><\/p>\n

\u7b54\u6848\u4e3atot-max(f[m][k](0<=k<n)) tot\u4e3a\u6bcf\u4e2a\u533a\u95f4\u4e0d\u540c\u6570\u5b57\u7c7b\u6570\u7684\u603b\u548c<\/span><\/p>\n

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

#include<cstdio>\n#include<cstring>\n#include<cstdlib>\n#include<iostream>\n#include<algorithm>\n#include<functional>\n#include<cmath>\nusing namespace std;\n#define MAXN (10)\n#define MAXM (10000+10)\n#define MAXLi (50)\nint n,m;\nbool b[MAXM][11];\nint f[MAXM][11];\nint l[MAXN];\nint main()\n{\n  \/\/  freopen("piece.in","r",stdin);\n    memset(b,0,sizeof(b));\n    memset(f,0,sizeof(f));\n    scanf("%d%d",&n,&m);\n    int ans=0,pre_size=0;\n    for (int i=1;i<=m;i++)\n    {\n        int li;\n        scanf("%d",&li);\n        for (int j=1;j<=li;j++) scanf("%d",&l[j]);\n        sort(l+1,l+li+1);\n        int size=unique(l+1,l+li+1)-(l+1);\n        ans+=size;\n    \/\/  cout<<size<<endl;\n    \/\/  for (int i=1;i<=size;i++) cout<<l[i]<<' ';cout<<endl;\n        for (int j=1;j<=size;j++)\n            b[i][l[j]]=1;\n        if (i==1)\n        {\n           for (int j=1;j<=size;j++)\n               f[1][l[j]]=1;\n        }\n        else\n        {\n        for (int j=1;j<=size;j++)\n            for (int k=0;k<n;k++)\n                if (b[i-1][k])\n                {\n                   f[i][l[j]]=max(f[i][l[j]],f[i-1][k]+(b[i-1][l[j]]&&(k!=l[j]||pre_size==1)));\n                }\n        }\n        pre_size=size;\n    }\n    int p=0;\n    for (int j=0;j<n;j++) {p=max(p,f[m][j]); }\n\/*\n    for (int i=1;i<=m;i++)\n    {\n        for (int j=0;j<n;j++)\n            cout<<f[i][j]<<' ';\n        cout<<endl;\n    }\n*\/\n    cout<<ans-p<<endl;\n\/\/   while (1);\n    return 0;\n}\n<\/pre>\n<\/p>\n

\n<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
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