Compilare: user.cpp: In function ‘void DF(int)’: user.cpp:22:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[nod].size(); i++) ^ user.cpp:21:9: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] int ok=0, s=0, i; ^ user.cpp: In function ‘int main()’: user.cpp:40:18: warning: variable ‘maxi’ set but not used [-Wunused-but-set-variable] int i, x, y, maxi, mini; ^