Compilare: user.cpp: In function ‘int main()’: user.cpp:33:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<sol[i].size();j++) ^ user.cpp: In function ‘void DFS(int)’: user.cpp:54:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<G[x].size(); i++) // i merge pana la dimensiunea lui G ^ user.cpp: In function ‘void DFSTR(int)’: user.cpp:63:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<GTR[x].size(); i++) ^