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View Compilation Error

0_0_16816252_17332.cpp: In function 'bool BFS()':
0_0_16816252_17332.cpp:72:13: error: reference to 'hash' is ambiguous
     memset( hash, 0, sizeof( hash ) ); // 不能单纯的判断某一点是否走过,而是该点是否有更优的解
             ^
0_0_16816252_17332.cpp:14:22: note: candidates are: char hash [2][15][15]
 char map[2][15][15], hash[2][15][15];
                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:1181:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:65,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:61,
                 from 0_0_16816252_17332.cpp:8:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_16816252_17332.cpp:72:30: error: reference to 'hash' is ambiguous
     memset( hash, 0, sizeof( hash ) ); // 不能单纯的判断某一点是否走过,而是该点是否有更优的解
                              ^
0_0_16816252_17332.cpp:14:22: note: candidates are: char hash [2][15][15]
 char map[2][15][15], hash[2][15][15];
                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:1181:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:65,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:61,
                 from 0_0_16816252_17332.cpp:8:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_16816252_17332.cpp:78:5: error: reference to 'hash' is ambiguous
     hash[sk][sx][sy]= 1;
     ^
0_0_16816252_17332.cpp:14:22: note: candidates are: char hash [2][15][15]
 char map[2][15][15], hash[2][15][15];
                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:1181:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:65,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:61,
                 from 0_0_16816252_17332.cpp:8:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_16816252_17332.cpp:112:43: error: reference to 'hash' is ambiguous
                 if( map[k][x][y]!= '#'&& !hash[k][x][y]&& step< S )
                                           ^
0_0_16816252_17332.cpp:14:22: note: candidates are: char hash [2][15][15]
 char map[2][15][15], hash[2][15][15];
                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:1181:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:65,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:61,
                 from 0_0_16816252_17332.cpp:8:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_16816252_17332.cpp:118:21: error: reference to 'hash' is ambiguous
                     hash[k][x][y]= 1;
                     ^
0_0_16816252_17332.cpp:14:22: note: candidates are: char hash [2][15][15]
 char map[2][15][15], hash[2][15][15];
                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:1181:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:65,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:61,
                 from 0_0_16816252_17332.cpp:8:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_16816252_17332.cpp:124:114: error: reference to 'hash' is ambiguous
                 else if( map[k][x][y]== '#'&& map[ ( k+ 1 )% 2 ][x][y]!= '*'&& map[ ( k+ 1 )% 2 ][x][y]!= '#'&& !hash[ ( k+ 1 )% 2 ][x][y]&& step< S )
                                                                                                                  ^
0_0_16816252_17332.cpp:14:22: note: candidates are: char hash [2][15][15]
 char map[2][15][15], hash[2][15][15];
                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:1181:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:65,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:61,
                 from 0_0_16816252_17332.cpp:8:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^
0_0_16816252_17332.cpp:130:21: error: reference to 'hash' is ambiguous
                     hash[ ( k+ 1 )% 2 ][x][y]= 1;
                     ^
0_0_16816252_17332.cpp:14:22: note: candidates are: char hash [2][15][15]
 char map[2][15][15], hash[2][15][15];
                      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:1181:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:65,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:61,
                 from 0_0_16816252_17332.cpp:8:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/functional_hash.h:58:12: note:                 template<class _Tp> struct std::hash
     struct hash;
            ^


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