Eroare de compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:19:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[x].size();i++) ^ user.cpp: In function ‘void dfs1(int)’: user.cpp:31:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<gt[x].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:61:8: error: invalid operands of types ‘std::vector<int> [100010]’ and ‘int’ to binary ‘operator<<’ g<<nr<<"\n"; ^ user.cpp:65:24: error: invalid operands of types ‘std::vector<int> [100010]’ and ‘__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}’ to binary ‘operator<<’ g<<ans[i][j]<<' '; ^ user.cpp:66:12: error: invalid operands of types ‘std::vector<int> [100010]’ and ‘const char [2]’ to binary ‘operator<<’ g<<"\n"; ^