Compilare: user.cpp: In function ‘void actualizare(int)’: user.cpp:17:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Q[x].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:108:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<Q[x].size();++j) ^ user.cpp:116:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(unsigned int i=0;i<n-1;++i) ^