Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:43: error: no match for ‘operator=’ in ‘g = freopen(((const char*)"disjoint.out"), ((const char*)"w"), stdout)’ /usr/include/libio.h:271: note: candidates are: _IO_FILE& _IO_FILE::operator=(const _IO_FILE&) user.cpp:80: error: request for member ‘close’ in ‘f’, which is of non-class type ‘FILE*’ user.cpp:81: error: ‘struct FILE’ has no member named ‘close’ user.cpp:45: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:59: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result