Compilare: user.cpp: In function ‘int DFS(int, int)’: user.cpp:17:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ^ user.cpp:21:2: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int LCA(int, int)’: user.cpp:24:10: warning: variable ‘scad’ set but not used [-Wunused-but-set-variable] { int i,scad; ^