Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:35:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++) ^ user.cpp:34:12: warning: unused variable ‘w’ [-Wunused-variable] celula w[16005]; ^ user.cpp: In function ‘void dfs2(int)’: user.cpp:74:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ^ user.cpp:72:9: warning: unused variable ‘k’ [-Wunused-variable] int k = 0; ^ user.cpp:73:9: warning: unused variable ‘w’ [-Wunused-variable] int w[16005]; ^