Eroare de compilare: user.cpp:3: error: expected nested-name-specifier before 'namemspace' user.cpp:3: error: 'namemspace' has not been declared user.cpp:3: error: expected `;' before 'std' user.cpp:3: error: expected constructor, destructor, or type conversion before ';' token user.cpp:4: error: 'ifstream' does not name a type user.cpp:5: error: 'ofstream' does not name a type user.cpp: In function 'int main()': user.cpp:14: error: 'f1' was not declared in this scope user.cpp:39: error: 'f2' was not declared in this scope user.cpp:39: error: 'endl' was not declared in this scope user.cpp:48: error: 'f2' was not declared in this scope user.cpp:48: error: 'endl' was not declared in this scope user.cpp:55: error: 'f2' was not declared in this scope