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View Compilation Error

0_0_21141982_31582.cpp: In function 'void sg_solve(int*, int, int)':
0_0_21141982_31582.cpp:17:16: error: reference to 'hash' is ambiguous
         memset(hash,0,sizeof(hash));  
                ^
0_0_21141982_31582.cpp:10:6: note: candidates are: bool hash [10008]
 bool hash[N];  
      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_21141982_31582.cpp:3:
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_21141982_31582.cpp:17:30: error: reference to 'hash' is ambiguous
         memset(hash,0,sizeof(hash));  
                              ^
0_0_21141982_31582.cpp:10:6: note: candidates are: bool hash [10008]
 bool hash[N];  
      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_21141982_31582.cpp:3:
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_21141982_31582.cpp:20:17: error: reference to 'hash' is ambiguous
                 hash[sg[i-s[j]]] = 1;  
                 ^
0_0_21141982_31582.cpp:10:6: note: candidates are: bool hash [10008]
 bool hash[N];  
      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_21141982_31582.cpp:3:
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_21141982_31582.cpp:22:17: error: reference to 'hash' is ambiguous
             if(!hash[j])  
                 ^
0_0_21141982_31582.cpp:10:6: note: candidates are: bool hash [10008]
 bool hash[N];  
      ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:3068:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52,
                 from 0_0_21141982_31582.cpp:3:
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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