Compilare: user.cpp: In function ‘int main()’: user.cpp:75: warning: use of ‘ll’ length modifier with ‘f’ type character user.cpp:78: warning: use of ‘ll’ length modifier with ‘f’ type character user.cpp:57: warning: unused variable ‘i’ user.cpp:57: warning: unused variable ‘j’ user.cpp:57: warning: unused variable ‘p’ user.cpp:57: warning: unused variable ‘q’ user.cpp:59: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:61: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result