Compilare: user.cpp: In function ‘int main()’: user.cpp:12: warning: unused variable ‘aux’ user.cpp:13: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:12: warning: ‘p’ may be used uninitialized in this function user.cpp:12: warning: ‘u’ may be used uninitialized in this function