foo.cc: In function 'int PrintMonth(int, int)':
foo.cc:56:1: warning: no return statement in function returning non-void [-Wreturn-type]
   56 | }
      | ^
foo.cc:10:6: warning: 'dayCount' may be used uninitialized in this function [-Wmaybe-uninitialized]
   10 |  int dayCount;
      |      ^~~~~~~~

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