foo.c: In function 'main':
foo.c:29:9: warning: 'c' may be used uninitialized [-Wmaybe-uninitialized]
   29 |         printf("%d",c[0]);
      |         ^~~~~~~~~~~~~~~~~
foo.c:20:17: note: 'c' declared here
   20 |         int s=0,c[100000];
      |                 ^
foo.c:29:9: warning: 'c' may be used uninitialized [-Wmaybe-uninitialized]
   29 |         printf("%d",c[0]);
      |         ^~~~~~~~~~~~~~~~~
foo.c:20:17: note: 'c' declared here
   20 |         int s=0,c[100000];
      |                 ^

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