foo.cc: In function 'int main()':
foo.cc:52:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   52 |         scanf("%d", &objs[i].time);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~
foo.cc:54:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   54 |         scanf("%d", &objs[i].weight);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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