Eroare de compilare: user.cpp:4:25: error: unordered_set: No such file or directory user.cpp:8: error: 'tr1' is not a namespace-name user.cpp:8: error: expected namespace-name before ';' token user.cpp:14: error: expected constructor, destructor, or type conversion before '<' token user.cpp:15: error: expected constructor, destructor, or type conversion before '<' token user.cpp: In function 'void initializare()': user.cpp:22: error: 'v' was not declared in this scope user.cpp:28: error: 'mc_in' was not declared in this scope user.cpp: In function 'int check()': user.cpp:33: error: 'unordered_set' was not declared in this scope user.cpp:33: error: expected primary-expression before 'int' user.cpp:33: error: expected `;' before 'int' user.cpp:36: error: 'v' was not declared in this scope user.cpp:40: error: 'v' was not declared in this scope user.cpp:43: error: 'it' was not declared in this scope user.cpp:43: error: 'v' was not declared in this scope user.cpp:48: error: 'mc_in' was not declared in this scope user.cpp:55: error: 'mc_in' was not declared in this scope user.cpp: In function 'int main()': user.cpp:82: error: 'mc_ext' was not declared in this scope user.cpp:85: error: 'v' was not declared in this scope user.cpp:93: error: 'v' was not declared in this scope