foo.c: In function 'main':
foo.c:27:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   27 |  if(c==0)
      |  ^~
foo.c:29:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   29 |   return 0;
      |   ^~~~~~
foo.c:19:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   19 |  scanf("%d",&x);
      |  ^~~~~~~~~~~~~~

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