Eroare de compilare: user.cpp:2:24: error: ext.hash_map: No such file or directory user.cpp:5: error: '__gnu_cxx' is not a namespace-name user.cpp:5: error: expected namespace-name before ';' token user.cpp:9: error: expected constructor, destructor, or type conversion before '<' token user.cpp: In function 'bool included(int, int)': user.cpp:17: error: 'hash_map' was not declared in this scope user.cpp:17: error: expected primary-expression before 'int' user.cpp:17: error: expected `;' before 'int' user.cpp:19: error: 'it' was not declared in this scope user.cpp:19: error: 'h' was not declared in this scope user.cpp: In function 'int main()': user.cpp:32: error: 'h' was not declared in this scope