Compilare: user.cpp: In function ‘uint64_t pinex(uint64_t)’: user.cpp:63:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < nr; ++j) ^ user.cpp: In function ‘uint64_t cautbin_hi(uint64_t)’: user.cpp:92:12: warning: left shift count >= width of type [enabled by default] dr=dr<<61; ^ user.cpp: In function ‘uint64_t cautbin_lo(uint64_t)’: user.cpp:108:12: warning: left shift count >= width of type [enabled by default] dr=dr<<61; ^ user.cpp: In function ‘int main()’: user.cpp:129:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = lo; i <= hi; ++i) ^