Compilare: user.cpp: In function ‘int main()’: user.cpp:71: warning: unused variable ‘j’ user.cpp:71: warning: unused variable ‘p’ user.cpp:73: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:74: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:75: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:71: warning: ‘q’ may be used uninitialized in this function