Compilare: user.cpp: In function ‘int main()’: user.cpp:25:67: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int l = 0 ; l < v[abs(val) % 666013].size() ; ++l) ^ user.cpp:32:23: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%ld" , num); ^