Compilare: user.cpp: In function ‘int main()’: user.cpp:15: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:17: warning: ‘mi’ may be used uninitialized in this function user.cpp:17: warning: ‘mj’ may be used uninitialized in this function