/in/foo.cc: In function 'void TreeDP(int, int)':
/in/foo.cc:56:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for (int z = 0; z < edge[x].size(); z++)
      |                         ~~^~~~~~~~~~~~~~~~
/in/foo.cc:53:13: warning: unused variable 't1' [-Wunused-variable]
   53 |         int t1 = 1, t2 = 0;
      |             ^~
/in/foo.cc:53:21: warning: unused variable 't2' [-Wunused-variable]
   53 |         int t1 = 1, t2 = 0;
      |                     ^~