Eroare de compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:18:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[x].size();++i) { ^ user.cpp:29:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[x].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:51:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<coduri.size();++i) fout<<coduri[i]<<' '; ^ user.cpp:53:27: error: ‘sort’ was not declared in this scope sort(pa.begin(), pa.end()); ^ user.cpp:55:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<pa.size();++i) fout<<pa[i]<<' '; ^