foo.c: In function 'main':
foo.c:83:51: warning: array subscript f is outside array bounds of 'int[<U 3f0>]' [-Warray-bounds]
   83 |                         if(group[i].parents == fml[f])
      |                                                ~~~^~~
foo.c:72:13: note: while referencing 'fml.14'
   72 |         int fml[nf];
      |             ^~~
foo.c:75:28: warning: array subscript nf is outside array bounds of 'int[<U 3f0>]' [-Warray-bounds]
   75 |                         fml[nf++] = group[i].parents;
      |                         ~~~^~~~~~
foo.c:72:13: note: while referencing 'fml.14'
   72 |         int fml[nf];
      |             ^~~

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