foo.c: In function 'main':
foo.c:9:16: warning: zero-length gnu_printf format string [-Wformat-zero-length]
    9 |         printf("")
      |                ^~
foo.c:9:19: error: expected ';' before 'return'
    9 |         printf("")
      |                   ^
      |                   ;
   10 |         return 0;
      |         ~~~~~~     

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