foo.cc: In function 'int main()':
foo.cc:99:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   99 |         scanf("%lf%lf",&ps1[i].x,&ps1[i].y);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:101:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  101 |         scanf("%lf%lf",&ps2[i].x,&ps2[i].y);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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