Compilare: user.cpp: In function ‘void upp(int, int, int&)’: user.cpp:27:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<NrGrupuri[nod1].size();++i) ^ user.cpp:51:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<NrGrupuri[nod2].size() || i<NrGrupuri[nod1].size();++i) ^ user.cpp:51:76: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<NrGrupuri[nod2].size() || i<NrGrupuri[nod1].size();++i) ^ user.cpp:53:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<NrGrupuri[nod2].size() && i<NrGrupuri[nod1].size()) ^ user.cpp:53:75: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<NrGrupuri[nod2].size() && i<NrGrupuri[nod1].size()) ^ user.cpp:61:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(i<NrGrupuri[nod2].size() && check[NrGrupuri[nod2][i]]==false) ^ user.cpp:63:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(i<NrGrupuri[nod1].size() && check[NrGrupuri[nod1][i]]==false) ^ user.cpp: In function ‘void parcurgere(int, int, int)’: user.cpp:184:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Tree[nod].size();++i) ^