0_0_25990048_17584.cpp: In function 'int main()':
0_0_25990048_17584.cpp:45:13: error: reference to 'hash' is ambiguous
hash.clear();
^
0_0_25990048_17584.cpp:31:15: note: candidates are: std::map<std::pair<int, int>, int> hash
map <pii,int> hash;
^
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_25990048_17584.cpp:5:
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_25990048_17584.cpp:50:17: error: reference to 'hash' is ambiguous
hash[make_pair(dx,dy)]++;
^
0_0_25990048_17584.cpp:31:15: note: candidates are: std::map<std::pair<int, int>, int> hash
map <pii,int> hash;
^
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_25990048_17584.cpp:5:
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_25990048_17584.cpp:52:22: error: reference to 'hash' is ambiguous
for(it = hash.begin();it != hash.end();++it){
^
0_0_25990048_17584.cpp:31:15: note: candidates are: std::map<std::pair<int, int>, int> hash
map <pii,int> hash;
^
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_25990048_17584.cpp:5:
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_25990048_17584.cpp:52:41: error: reference to 'hash' is ambiguous
for(it = hash.begin();it != hash.end();++it){
^
0_0_25990048_17584.cpp:31:15: note: candidates are: std::map<std::pair<int, int>, int> hash
map <pii,int> hash;
^
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_25990048_17584.cpp:5:
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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