foo.cc:27:23: error: ISO C++ forbids declaration of 'lowbit' with no type [-fpermissive]
   27 |         inline static lowbit(int x) {return x & (-x);}
      |                       ^~~~~~
foo.cc: In function 'int main()':
foo.cc:48:14: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   48 |         std::sort(v.begin(), v.end(), std::greater<>());
      |              ^~~~
      |              qsort
foo.cc:48:52: error: wrong number of template arguments (0, should be 1)
   48 |         std::sort(v.begin(), v.end(), std::greater<>());
      |                                                    ^
In file included from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/string:48,
                 from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/locale_classes.h:40,
                 from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/ios_base.h:41,
                 from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/ios:42,
                 from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/ostream:38,
                 from iostream:39:
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/stl_function.h:393:12: note: provided for 'template<class _Tp> struct std::greater'
  393 |     struct greater : public binary_function<_Tp, _Tp, bool>
      |            ^~~~~~~

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