Compilare: user.cpp: In function ‘void Add(int, int)’: user.cpp:32:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p==s.lg-1){ ^ user.cpp: In function ‘void Rem(int, int)’: user.cpp:41:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p==s.lg-1){ ^ user.cpp: In function ‘int Cnt(int, int)’: user.cpp:50:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p==s.lg-1) return t[t[nod].k[s[p]-'a']].f; ^ user.cpp: In function ‘int Pre(int, int)’: user.cpp:58:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p==s.lg-1) return ret; ^