foo.cc: In function 'int main()':
foo.cc:98:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   98 |     scanf("%d%d%d", &n, &m, &p);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~
foo.cc:100:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  100 |         scanf("%lld", &a[i]);
      |         ~~~~~^~~~~~~~~~~~~~~
foo.cc:105:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  105 |         scanf("%d", &chk);
      |         ~~~~~^~~~~~~~~~~~
foo.cc:109:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  109 |             scanf("%d%d%lld", &x, &y, &k);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:113:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  113 |             scanf("%d%d%lld", &x, &y, &k);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:117:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  117 |             scanf("%d%d", &x, &y);
      |             ~~~~~^~~~~~~~~~~~~~~~

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Found 3 testcases.
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