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View Compilation Error

0_0_13682940_15982.cpp: In function 'int main()':
0_0_13682940_15982.cpp:27:4: error: reference to 'rank' is ambiguous
    rank[i][j]=mp[s];
    ^
0_0_13682940_15982.cpp:10:5: note: candidates are: int rank [505][505]
 int rank[N][N],score[N][N];
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_13682940_15982.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^
0_0_13682940_15982.cpp:48:12: error: reference to 'rank' is ambiguous
   int girl=rank[t][now[t]];
            ^
0_0_13682940_15982.cpp:10:5: note: candidates are: int rank [505][505]
 int rank[N][N],score[N][N];
     ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:57:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_tree.h:61,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:60,
                 from 0_0_13682940_15982.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/type_traits:1340:12: note:                 template<class> struct std::rank
     struct rank
            ^


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