Compilare: user.cpp: In function ‘int main()’: user.cpp:45: warning: unused variable ‘j’ user.cpp:45: warning: unused variable ‘ok’ user.cpp:84: warning: unused variable ‘lasti’ user.cpp:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:51: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result