Eroare de compilare in evaluator: user.cpp: In function 'int main()': user.cpp:6: error: expected unqualified-id before '^' token user.cpp:7: error: 'in' was not declared in this scope user.cpp:7: error: 'fope' was not declared in this scope user.cpp:8: error: 'out' was not declared in this scope /usr/include/stdio.h:250: error: too few arguments to function 'FILE* fopen(const char*, const char*)' user.cpp:8: error: at this point in file user.cpp:12: error: 'xa' was not declared in this scope