foo.c: In function 'main':
foo.c:55:15: warning: 'head1' is used uninitialized [-Wuninitialized]
   55 |         head1=Create(head1,n1);
      |               ^~~~~~~~~~~~~~~~
foo.c:51:14: note: 'head1' was declared here
   51 |         Node*head1;
      |              ^~~~~
foo.c:56:15: warning: 'head2' is used uninitialized [-Wuninitialized]
   56 |         head2=Create(head2,n2);
      |               ^~~~~~~~~~~~~~~~
foo.c:52:14: note: 'head2' was declared here
   52 |         Node*head2;
      |              ^~~~~
foo.c: In function 'Findmaxneg':
foo.c:47:16: warning: 'm' may be used uninitialized [-Wmaybe-uninitialized]
   47 |         return m;
      |                ^
foo.c:33:13: note: 'm' was declared here
   33 |         int m;
      |             ^

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