Compilare: user.cpp: In function ‘void DFS_Timpifinali(int)’: user.cpp:60:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<L[x].size();i++) ^ user.cpp: In function ‘void DFS_tr(int, int)’: user.cpp:74:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<L_tr[x].size();i++) ^ user.cpp: In function ‘void Afisare()’: user.cpp:109:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<Rez[i].size();j++) ^ user.cpp: In function ‘int main()’: user.cpp:116:11: warning: unused variable ‘j’ [-Wunused-variable] int x,j,i; ^