/in/foo.cc: In function 'int main()':
/in/foo.cc:9:14: warning: 'sx' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if(maze[x][y] == 'G')
     ~~~~~~~~~^
/in/foo.cc:50:6: note: 'sx' was declared here
  int sx, sy;
      ^~
/in/foo.cc:9:14: warning: 'sy' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if(maze[x][y] == 'G')
     ~~~~~~~~~^
/in/foo.cc:50:10: note: 'sy' was declared here
  int sx, sy;
          ^~