Compilare: user.cpp: In function ‘long long unsigned int calcul(int, int, long long int)’: user.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p <= val / x) ^ user.cpp: In function ‘bool cautbin(long long int, int)’: user.cpp:78:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (rez < x) ^ user.cpp:83:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (rez == x) ^ user.cpp:64:8: warning: unused variable ‘ok’ [-Wunused-variable] bool ok = true; ^