Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:21:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[x].size();i++) ^ user.cpp: In function ‘void DFSC(int)’: user.cpp:32:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<vt[x].size();i++) ^ user.cpp: In function ‘void SortTop()’: user.cpp:48:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<vc[nod].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:88:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<c[i].size();j++) ^ user.cpp:91:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(t=0;t<v[nod].size();t++) ^ user.cpp:104:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] { for(j=0;j<vc[i].size();j++) ^