Compilare: user.cpp: In function ‘int GetInt()’: user.cpp:20: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp:24: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:116: warning: format ‘%lld’ expects type ‘long long int’, but argument 3 has type ‘int’