foo.c: In function 'main':
foo.c:35:11: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   35 |  printf("%d",ans);
      |          ~^  ~~~
      |           |  |
      |           |  long long int
      |           int
      |          %lld
foo.c:11:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   11 |   scanf("%d",&a[i]);
      |   ^~~~~~~~~~~~~~~~~

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