foo.cc: In function 'int main()':
foo.cc:6:12: warning: 'Maxy' may be used uninitialized in this function [-Wmaybe-uninitialized]
   int Maxx,Maxy,Max = -99999;
            ^~~~
foo.cc:15:40: warning: 'Maxx' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (nowtime < abs(x-Maxx)+abs(y-Maxy)+Maxx+1 || !map[Maxx][Maxy])
                 ~~~~~~~~~~~~~~~~~~~~~~~^~~~~
foo.cc:6:7: note: 'Maxx' was declared here
   int Maxx,Maxy,Max = -99999;
       ^~~~

自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。