foo.cc: In function 'int main()':
foo.cc:30:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   30 |     int q;scanf("%d",&q);
      |           ~~~~~^~~~~~~~~
foo.cc:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   32 |  scanf("%d%d",&p[i].l,&p[i].r);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Found 20 testcases.