Compilare: user.cpp: In member function ‘Huge& Huge::operator*(const int&) const’: user.cpp:140: warning: reference to local variable ‘A’ returned user.cpp: In function ‘int main()’: user.cpp:213: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:215: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result