foo.c: In function 'insert':
foo.c:31:25: error: 'newNode' undeclared (first use in this function); did you mean 'newN'?
   31 |         current->next = newNode;
      |                         ^~~~~~~
      |                         newN
foo.c:31:25: note: each undeclared identifier is reported only once for each function it appears in

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