Compilare: user.cpp: In function ‘void DFS1(int)’: user.cpp:34:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < L[nod].size(); j++) ^ user.cpp: In function ‘void DFS2(int)’: user.cpp:51:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < L[nod].size(); j++) ^ user.cpp: In function ‘void Rezolva()’: user.cpp:80:12: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] DFS2(y); ^