/in/foo.cc: In function 'void work()':
/in/foo.cc:72:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=1;i<vec1.size();i++)
                  ~^~~~~~~~~~~~
/in/foo.cc:82:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         dp1 = (dp1 + (qword)(cnt?vec1[cnt-1]:1)*(cnt==vec1.size()-1?1:vec2[cnt+1])%MOD*dp[ne->np][0])%MOD;
                                                  ~~~^~~~~~~~~~~~~~~