foo.c: In function 'main':
foo.c:8:14: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'long int *' [-Wformat=]
    8 |      scanf("%d",&x[k]);
      |             ~^  ~~~~~
      |              |  |
      |              |  long int *
      |              int *
      |             %ld
foo.c:27:12: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=]
   27 |   printf("%d\n",b);
      |           ~^    ~
      |            |    |
      |            int  long int
      |           %ld
foo.c:5:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    5 |  scanf("%d",&n);
      |  ^~~~~~~~~~~~~~
foo.c:8:6: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    8 |      scanf("%d",&x[k]);
      |      ^~~~~~~~~~~~~~~~~

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