Compilare: user.cpp: In function ‘int main()’: user.cpp:22:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(n-i+q.size()==in.back()) {g<<q.back();q.pop_back();in.pop_back();} ^ user.cpp:23:77: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(rez.front()!=rez[rez.size()-i+q.size()-1]&&i<rez.size()-i+q.size()) {g<<rez.front();q.push_back(rez.front());in.push_back(i);rez.pop_front();} ^