Compilare: user.cpp: In function ‘void DFS(int, int, int)’: user.cpp:30:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(viz[nod] > arb[nod].size() - 1) return; ^ user.cpp:34:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz == arb[nod2].size() - 1) poz = 1; ^ user.cpp: In function ‘int Caut(int, std::vector<int>)’: user.cpp:23:1: warning: control reaches end of non-void function [-Wreturn-type] } ^