foo.cc: In function 'int main()':
foo.cc:18:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   18 |     scanf("%d%d",&n,&k);
      |     ~~~~~^~~~~~~~~~~~~~
foo.cc:22:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   22 |      scanf("%d",&q[i].a);
      |      ~~~~~^~~~~~~~~~~~~~
foo.cc:24:11: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   24 |      scanf("%d",&q[i].p);
      |      ~~~~~^~~~~~~~~~~~~~

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