foo.cc: In function 'int main()':
foo.cc:27:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   27 |  scanf("%d",&q);
      |  ~~~~~^~~~~~~~~
foo.cc:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |   scanf("%d%d",&a[i].l,&a[i].r);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

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Found 20 testcases.