Compilare: user.cpp: In function ‘int findHash(unsigned int)’: user.cpp:46:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Hash[Xn].size();i++) ^ user.cpp: In function ‘void Dfs(int, unsigned int)’: user.cpp:95:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[Nod].size();i++) ^ user.cpp: In function ‘void read()’: user.cpp:109:18: warning: unused variable ‘S’ [-Wunused-variable] int i,Father,S; ^