foo.cc: In function 'Edge Query(int, int, int, int, int)':
foo.cc:50:10: warning: 'ansl.Edge::ml' may be used uninitialized [-Wmaybe-uninitialized]
   50 |     Edge ansl,ansr;
      |          ^~~~
foo.cc:50:10: warning: 'ansl.Edge::mr' may be used uninitialized [-Wmaybe-uninitialized]
foo.cc:50:10: warning: 'ansl.Edge::maxs' may be used uninitialized [-Wmaybe-uninitialized]
foo.cc:50:15: warning: 'ansr.Edge::ml' may be used uninitialized [-Wmaybe-uninitialized]
   50 |     Edge ansl,ansr;
      |               ^~~~
foo.cc:50:15: warning: 'ansr.Edge::mr' may be used uninitialized [-Wmaybe-uninitialized]
foo.cc:50:15: warning: 'ansr.Edge::maxs' may be used uninitialized [-Wmaybe-uninitialized]

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