0_0_17944987_32210.cpp: In function 'void dfs(int)':
0_0_17944987_32210.cpp:23:20: error: request for member 'size' in 'g.std::vector<_Tp, _Alloc>::operator[]<int, std::allocator<int> >(((std::vector<int>::size_type)u))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}'
int i,len=g[u].size();
^
0_0_17944987_32210.cpp:25:19: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}[int]' for array subscript
if(!vis[g[u][i]])
^
0_0_17944987_32210.cpp:26:15: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}[int]' for array subscript
dfs(g[u][i]);
^
0_0_17944987_32210.cpp: In function 'void rdfs(int)':
0_0_17944987_32210.cpp:33:20: error: request for member 'size' in 'r.std::vector<_Tp, _Alloc>::operator[]<int, std::allocator<int> >(((std::vector<int>::size_type)u))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}'
int i,len=r[u].size();
^
0_0_17944987_32210.cpp:35:19: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}[int]' for array subscript
if(!vis[r[u][i]])
^
0_0_17944987_32210.cpp:36:16: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}[int]' for array subscript
rdfs(r[u][i]);
^
0_0_17944987_32210.cpp: In function 'void add(int, int)':
0_0_17944987_32210.cpp:64:10: error: request for member 'push_back' in 'g.std::vector<_Tp, _Alloc>::operator[]<int, std::allocator<int> >(((std::vector<int>::size_type)x))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}'
g[x].push_back(y);
^
0_0_17944987_32210.cpp:65:10: error: request for member 'push_back' in 'r.std::vector<_Tp, _Alloc>::operator[]<int, std::allocator<int> >(((std::vector<int>::size_type)y))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}'
r[y].push_back(x);
^
0_0_17944987_32210.cpp: In function 'int main()':
0_0_17944987_32210.cpp:78:15: error: request for member 'clear' in 'g.std::vector<_Tp, _Alloc>::operator[]<int, std::allocator<int> >(((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}'
g[i].clear();
^
0_0_17944987_32210.cpp:79:15: error: request for member 'clear' in 'r.std::vector<_Tp, _Alloc>::operator[]<int, std::allocator<int> >(((std::vector<int>::size_type)i))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}'
r[i].clear()
^
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