/in/foo.cc: In function 'void dfs(int, int, int, std::vector<int>&, int&, std::vector<std::vector<int> >&)':
/in/foo.cc:10:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |                         for(int i=0; i<temp.size(); i++)
      |                                      ~^~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:40:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |                         for(int j=0; j<res[i].size(); j++)
      |                                      ~^~~~~~~~~~~~~~