/in/foo.cc: In function 'bool compareDates(const string&, const string&)':
/in/foo.cc:12:5: error: 'sscanf_s' was not declared in this scope; did you mean 'sscanf'?
   12 |     sscanf_s(date1.c_str(), "%d/%d/%d", &month1, &day1, &year1);
      |     ^~~~~~~~
      |     sscanf