Compilare: user.cpp: In function ‘long long unsigned int calcul(int, int, long long int)’: user.cpp:45:18: 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:64:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (rez == x) ^ user.cpp:72:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (rez < x) ^ user.cpp:54:21: warning: unused variable ‘rez’ [-Wunused-variable] unsigned long long rez; ^