Eroare de compilare: user.cpp:12:1: error: ‘unordered_map’ does not name a type unordered_map <string, bool> Ma[2], Mb[2]; ^ user.cpp: In function ‘int expand1e(std::string, std::string, int, int)’: user.cpp:20:13: error: ‘Ma’ was not declared in this scope if (Ma[0].find (x) == Ma[0].end()) ^ user.cpp: In function ‘int expand2e(std::string, std::string, int, int)’: user.cpp:31:13: error: ‘Ma’ was not declared in this scope if (Ma[0].find(x) != Ma[0].end() && Mb[0].find(x) == Mb[0].end()) ^ user.cpp:31:45: error: ‘Mb’ was not declared in this scope if (Ma[0].find(x) != Ma[0].end() && Mb[0].find(x) == Mb[0].end()) ^ user.cpp: In function ‘int expand1o(std::string, std::string, int, int)’: user.cpp:42:13: error: ‘Ma’ was not declared in this scope if (Ma[1].find (x) == Ma[1].end()) ^ user.cpp: In function ‘int expand2o(std::string, std::string, int, int)’: user.cpp:53:13: error: ‘Ma’ was not declared in this scope if (Ma[1].find(x) != Ma[1].end() && Mb[1].find(x) == Mb[1].end()) ^ user.cpp:53:45: error: ‘Mb’ was not declared in this scope if (Ma[1].find(x) != Ma[1].end() && Mb[1].find(x) == Mb[1].end()) ^ user.cpp: In function ‘int main()’: user.cpp:137:13: error: ‘Mb’ was not declared in this scope fout << Mb[0].size() + Mb[1].size(); ^