/in/foo.cc: In function 'void pd(int, int)':
/in/foo.cc:12:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<Tu[x].size();i++)
              ~^~~~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:32:12: warning: array subscript is above array bounds [-Warray-bounds]
  f[666][666]=min(f[0][0],f[0][1]);
  ~~~~~~~~~~^