foo.c: In function 'main':
foo.c:14:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   14 |   if (a[i] > a[i + 1])
      |   ^~
foo.c:15:14: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   15 |    c = a[i]; a[i] = a[i + 1]; a[i + 1] = c;
      |              ^
foo.c:6:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    6 |  scanf("%d",&n);
      |  ^~~~~~~~~~~~~~
foo.c:9:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    9 |   scanf("%d", &a[i]);
      |   ^~~~~~~~~~~~~~~~~~
foo.c:18:8: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
   18 |  while (b != 0)
      |        ^
foo.c:16:5: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized]
   16 |   b = a[i + 1] % a[i];
      |   ~~^~~~~~~~~~~~~~~~~

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