foo.c: In function 'insert':
foo.c:6:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    6 |  for(i=0;i<n;i++)
      |  ^~~
foo.c:13:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   13 |   j[i]=x;
      |   ^
foo.c:14:1: warning: control reaches end of non-void function [-Wreturn-type]
   14 | }
      | ^
foo.c: In function 'main':
foo.c:21:4: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   21 |    scanf("%d",&j[i]);
      |    ^~~~~~~~~~~~~~~~~
foo.c:22:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   22 |   scanf("%d",&x);
      |   ^~~~~~~~~~~~~~

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