Problem	subgraphs
User	chatdanai
Submission Time	2026-05-05 10:17:31
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

subgraphs.cpp: In function ‘long long int dfs(long long int)’:
subgraphs.cpp:10:24: error: request for member ‘size’ in ‘adj.std::vector<long long int>::operator[](((std::vector<long long int>::size_type)n))’, which is of non-class type ‘__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type’ {aka ‘long long int’}
10 | for (int i=0;i<adj[n].size();i++){
| ^~~~
subgraphs.cpp: In function ‘int main()’:
subgraphs.cpp:24:10: error: request for member ‘push_back’ in ‘adj.std::vector<long long int>::operator[](((std::vector<long long int>::size_type)x))’, which is of non-class type ‘__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type’ {aka ‘long long int’}
24 | adj[x].push_back(y);
| ^~~~~~~~~
subgraphs.cpp:25:10: error: request for member ‘push_back’ in ‘adj.std::vector<long long int>::operator[](((