foo.c: In function 'main':
foo.c:16:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
   16 |  while((s1[l1++] = gets()) != '\n');
      |  ^~~~~
In file included from /usr/include/stdio.h:867,
                 from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
  235 | gets (char *__str)
      | ^~~~
foo.c:16:20: error: too few arguments to function 'gets'
   16 |  while((s1[l1++] = gets()) != '\n');
      |                    ^~~~
In file included from /usr/include/stdio.h:867,
                 from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
  235 | gets (char *__str)
      | ^~~~
foo.c:17:2: warning: 'gets' is deprecated [-Wdeprecated-declarations]
   17 |  while((s2[l2++] = gets()) != '\n');
      |  ^~~~~
In file included from /usr/include/stdio.h:867,
                 from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
  235 | gets (char *__str)
      | ^~~~
foo.c:17:20: error: too few arguments to function 'gets'
   17 |  while((s2[l2++] = gets()) != '\n');
      |                    ^~~~
In file included from /usr/include/stdio.h:867,
                 from foo.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:235:1: note: declared here
  235 | gets (char *__str)
      | ^~~~

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