foo.cc:3: warning: ignoring '#pragma warning ' [-Wunknown-pragmas]
    3 | #pragma warning(disable:4996)
      | 
foo.cc: In function 'int maxDelete(std::string)':
foo.cc:8:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |         while(i<s.length())
      |               ~^~~~~~~~~~~

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