Compilare: user.cpp: In function ‘int main()’: user.cpp:20: warning: format ‘%u’ expects type ‘unsigned int*’, but argument 3 has type ‘long long unsigned int*’ user.cpp:25: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:17: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:20: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:16: warning: ‘p’ may be used uninitialized in this function