answer.code: In function ‘void icealsoheat()’:
answer.code:25:26: error: ‘>>’ should be ‘> >’ within a nested template argument list
   25 |         vector<vector<int>>ve(n+5);
      |                          ^~
      |                          > >
answer.code:40:18: error: ‘dfs’ does not name a type
   40 |             auto dfs=[&](auto self,int x)->void{
      |                  ^~~
answer.code:57:21: error: ‘dfs’ was not declared in this scope; did you mean ‘ffs’?
   57 |                 dfs(dfs,i);
      |                     ^~~
      |                     ffs
answer.code:57:17: error: ‘dfs’ was not declared in this scope; did you mean ‘ffs’?
   57 |                 dfs(dfs,i);
      |                 ^~~
      |                 ffs