Compilare: user.cpp: In function ‘void girl(int)’: user.cpp:46:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<w[x].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:59:31: warning: overflow in implicit constant conversion [-Woverflow] f.get(Buff,Buffer,50000000); ^ user.cpp:101:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[now].size();++i) ^