Compilare: user.cpp: In function ‘int main()’: user.cpp:41:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<ls[x].size();i++) ^ user.cpp:71:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<ls[x].size();i++)//fiecare insula la care se poate ajunge din x ^