/in/foo.cc: In function 'void TreeDp(int)':
/in/foo.cc:44:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<edges[Now].size(); i++) {
               ~^~~~~~~~~~~~~~~~~~
/in/foo.cc:56:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0; i<edges[Now].size(); i++) {
                ~^~~~~~~~~~~~~~~~~~