Compilare: user.cpp: In function ‘bool verprim(long long int)’: user.cpp:18:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < prime.size() && prime[i] * prime[i] <= x; i++) ^ user.cpp: In function ‘int main()’: user.cpp:59:26: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 2 has type ‘long long int*’ [-Wformat=] scanf("%ld", &cod); ^ user.cpp:85:29: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%ld\n", maxx); ^