foo.cc: In function 'int main()':
foo.cc:21:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |     scanf("%d%d%d",&n,&k,&p);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
foo.cc:23:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 |         scanf("%d",&a[i]);
      |         ~~~~~^~~~~~~~~~~~

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Found 10 testcases.
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