Eroare de compilare: main.cpp: In function 'int main()': main.cpp:21:23: error: reference to 'hash' is ambiguous if(hash.find(x)!=hash.end()) hash[x]++; ^~~~ main.cpp:6:15: note: candidates are: std::map<int, int> hash map <int,int> hash; ^~~~ In file included from /usr/include/c++/6/bits/basic_string.h:5646:0, from /usr/include/c++/6/string:52, from /usr/include/c++/6/bits/locale_classes.h:40, from /usr/include/c++/6/bits/ios_base.h:41, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^~~~ main.cpp:21:37: error: reference to 'hash' is ambiguous if(hash.find(x)!=hash.end()) hash[x]++; ^~~~ main.cpp:6:15: note: candidates are: std::map<int, int> hash map <int,int> hash; ^~~~ In file included from /usr/include/c++/6/bits/basic_string.h:5646:0, from /usr/include/c++/6/string:52, from /usr/include/c++/6/bits/locale_classes.h:40, from /usr/include/c++/6/bits/ios_base.h:41, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash struct hash; ^~~~ main.cpp:21:49: error: reference to 'hash' is ambiguous if(hash.find(x)!=hash.end()) hash[x]++; ^~~~ main.cpp:6:15: note: candidates are: std::map<int, int> hash map <int,int> hash; ^~~~ In file included from /usr/include/c++/6/bits/basic_string.h:5646:0, from /usr/include/c++/6/string:52, from /usr/include/c++/6/bits/locale_classes.h:40, from /usr/include/c++/6/bits/ios_base.h:41, from /usr/include/c++/6/ios:42, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from main.cpp:1: /usr/include/c++/6/bits/functional_hash.h:58:12: note: template<class _Tp> struct std::hash Non zero exit status: 1