Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:47: error: invalid use of member (did you forget the ‘&’ ?) user.cpp:50: error: invalid operands of types ‘long long int’ and ‘<unresolved overloaded function type>’ to binary ‘operator+’ user.cpp:50: error: in evaluation of ‘operator+=(long long int, <unresolved overloaded function type>)’ user.cpp:52: warning: format ‘%d’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result