/in/foo.cc: In function 'void MeIoN_is_UMP45()':
/in/foo.cc:232:25: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
     q.push({ (int)a[x][y], x, y });
                         ^
/in/foo.cc:232:22: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
     q.push({ (int)a[x][y], x, y });
                      ^