Compilare: user.cpp: In function ‘void DFS1(int)’: user.cpp:60:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<G[x].size(); i++) ^ user.cpp: In function ‘void DFS2(int)’: user.cpp:87:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<GT[x].size(); i++) ^ user.cpp: In function ‘void afisare()’: user.cpp:99:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<sol[i].size(); j++) ^