Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:62:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<ARB[nod].size();i++) { ^ user.cpp: In function ‘int main()’: user.cpp:119:29: warning: ‘B’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<Best<<' '<<A<<' '<<B<<'\n'; ^ user.cpp:119:21: warning: ‘A’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<Best<<' '<<A<<' '<<B<<'\n'; ^