{"id":694,"date":"2019-03-05T20:04:39","date_gmt":"2019-03-05T12:04:39","guid":{"rendered":"http:\/\/SmokeyDays.top\/wordpress\/?p=694"},"modified":"2019-03-05T20:04:39","modified_gmt":"2019-03-05T12:04:39","slug":"lp4363-%e4%b9%9d%e7%9c%81%e8%81%94%e8%80%832018-%e4%b8%80%e5%8f%8c%e6%9c%a8%e6%a3%8bchess","status":"publish","type":"post","link":"http:\/\/SmokeyDays.top\/wordpress\/2019\/03\/05\/lp4363-%e4%b9%9d%e7%9c%81%e8%81%94%e8%80%832018-%e4%b8%80%e5%8f%8c%e6%9c%a8%e6%a3%8bchess\/","title":{"rendered":"lp4363 \u4e5d\u7701\u8054\u80032018 \u4e00\u53cc\u6728\u68cbchess"},"content":{"rendered":"\n

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#include<iostream>\n#include<cstdio>\n#include<tr1\/unordered_map>\n\ninline int Max(int A,int B){\n\treturn A>B?A:B;\n}\n\ninline int Min(int A,int B){\n\treturn A<B?A:B;\n}\nconst int INF=0x3f3f3f3f;\nstd::tr1::unordered_map<long long,int> mp;\nint a[11][11],b[11][11],f[11],n,m;\n\ninline long long hsh(){\n\tlong long RT=0;\n\tfor(int i=1;i<=n;++i){\n\t\tRT*=12;\n\t\tRT+=f[i];\n\t}\n\treturn RT;\n}\n\ninline void ahsh(long long X){\n\tfor(int i=n;i>=1;--i){\n\t\tf[i]=X%12;\n\t\tX\/=12;\n\t}\n}\n\ninline int dfs(long long X,bool typ){\n\tif(mp.count(X)){\n\t\treturn mp[X];\n\t}\n\tint RT=typ?-INF:INF;\n\tlong long nw;\n\tahsh(X);\n\tfor(int i=1;i<=n;++i){\n\t\tif(f[i]<f[i-1]){\n\t\t\t++f[i];nw=hsh();\n\t\t\tRT=typ?Max(RT,dfs(nw,0)+a[i][f[i]]):Min(RT,dfs(nw,1)-b[i][f[i]]);\n\t\t\t--f[i];\n\t\t}\n\t}\n\treturn mp[X]=RT;\n}\n\nvoid init(){\n\tscanf(\"%d%d\",&n,&m);\n\tfor(int i=1;i<=n;++i){\n\t\tfor(int j=1;j<=m;++j){\n\t\t\tscanf(\"%d\",&a[i][j]);\n\t\t}\n\t}\n\tfor(int i=1;i<=n;++i){\n\t\tfor(int j=1;j<=m;++j){\n\t\t\tscanf(\"%d\",&b[i][j]);\n\t\t}\n\t}\n\tfor(int i=0;i<=n;++i){\n\t\tf[i]=m;\n\t}\n\tmp[hsh()]=0;\n\tprintf(\"%d\\n\",dfs(0,1));\n}\n\nint main(){\n\tinit();\n\treturn 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
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