/in/foo.cc: In function 'void TreeDP(int, int)':
/in/foo.cc:42:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |         for (int z = 0; z < edge[x].size(); z++)
      |                         ~~^~~~~~~~~~~~~~~~
/in/foo.cc:48:38: warning: unused variable 'tmp2' [-Wunused-variable]
   48 |                         ll tmp1 = 0, tmp2 = 0;
      |                                      ^~~~
/in/foo.cc:68:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |         for (int z = 0; z < edge[x].size(); z++) if (edge[x][z] != st) num[++len] = edge[x][z];
      |                         ~~^~~~~~~~~~~~~~~~
/in/foo.cc:40:13: warning: unused variable 't1' [-Wunused-variable]
   40 |         int t1 = 1, t2 = 0;
      |             ^~
/in/foo.cc:40:21: warning: unused variable 't2' [-Wunused-variable]
   40 |         int t1 = 1, t2 = 0;
      |                     ^~