Compilare: user.cpp: In function ‘int main()’: user.cpp:5: warning: integer overflow in expression user.cpp:8: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:11: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:5: warning: ‘aux’ may be used uninitialized in this function user.cpp:5: warning: ‘dr’ may be used uninitialized in this function