foo.cc: In function ‘void dfs(int, int, int)’:
foo.cc:19:40: warning: ‘Maxx’ may be used uninitialized [-Wmaybe-uninitialized]
   19 |   if (nowtime < abs(x-Maxx)+abs(y-Maxy)+Maxx+1 || !map[Maxx][Maxy])
      |                 ~~~~~~~~~~~~~~~~~~~~~~~^~~~~
foo.cc:10:7: note: ‘Maxx’ was declared here
   10 |   int Maxx,Maxy,Max = -99999;
      |       ^~~~
foo.cc:19:66: warning: ‘Maxy’ may be used uninitialized [-Wmaybe-uninitialized]
   19 |   if (nowtime < abs(x-Maxx)+abs(y-Maxy)+Maxx+1 || !map[Maxx][Maxy])
      |                                                    ~~~~~~~~~~~~~~^
foo.cc:10:12: note: ‘Maxy’ was declared here
   10 |   int Maxx,Maxy,Max = -99999;
      |            ^~~~