foo.cc: In function 'int main()':
foo.cc:50:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   50 |             scanf("%d",&a[i]);
      |             ~~~~~^~~~~~~~~~~~
foo.cc:55:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   55 |             scanf("%s",op);
      |             ~~~~~^~~~~~~~~
foo.cc:59:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   59 |                 scanf("%d%d",&q[qcnt].l,&q[qcnt].r) ;
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:66:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   66 |                 scanf("%d%d",&c[ccnt].p,&c[ccnt].col);
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Found 10 testcases.
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