Compilare: user.cpp: In function ‘bool N_prim(int)’: user.cpp:21:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (t=3; t*t <=N; t+=2){ ^ user.cpp: In function ‘int div_N(unsigned int*, unsigned int, unsigned int&)’: user.cpp:31:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=2; i*i < N; i ++){ ^ user.cpp:38:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i * i == N) ^ user.cpp: In function ‘int main()’: user.cpp:44:35: warning: unused variable ‘i’ [-Wunused-variable] unsigned divizori[MAX], N, d, i, j; ^ user.cpp:44:38: warning: unused variable ‘j’ [-Wunused-variable] unsigned divizori[MAX], N, d, i, j; ^