Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:36:3: error: ‘fin’ was not declared in this scope fin >> n >> m; ^~~ user.cpp:45:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < g[n].size(); i++) { ~~^~~~~~~~~~~~~ user.cpp:60:3: error: ‘fout’ was not declared in this scope fout << ans; ^~~~