/in/foo.cc: In function 'long long int solve(long long int)':
/in/foo.cc:7:81: warning: iteration 300 invokes undefined behavior [-Waggressive-loop-optimizations]
  for(int i=0;i<=300;i++)for(int j=0;j<=300;j++)for(int d=0;d<=300;d++)F[i][j][d]=0;
                                                                       ~~~~~~~~~~^~
/in/foo.cc:7:61: note: within this loop
  for(int i=0;i<=300;i++)for(int j=0;j<=300;j++)for(int d=0;d<=300;d++)F[i][j][d]=0;
                                                            ~^~~~~