foo.cc: In function 'int main()':
foo.cc:13:16: error: reference to 'begin' is ambiguous
   13 |         cin >> begin[i] >> end[i];
      |                ^~~~~
In file included from stdc++.h:95:
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/valarray:1228:5: note: candidates are: 'template<class _Tp> const _Tp* std::begin(const valarray<_Tp>&)'
 1228 |     begin(const valarray<_Tp>& __va) noexcept
      |     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/valarray:1217:5: note:                 'template<class _Tp> _Tp* std::begin(valarray<_Tp>&)'
 1217 |     begin(valarray<_Tp>& __va) noexcept
      |     ^~~~~
In file included from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/string:52,
                 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/istream:38,
                 from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/sstream:38,
                 from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/complex:45,
                 from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/ccomplex:39,
                 from stdc++.h:54:
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:95:5: note:                 'template<class _Tp, long unsigned int _Nm> _Tp* std::begin(_Tp (&)[_Nm])'
   95 |     begin(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:63:5: note:                 'template<class _Container> decltype (__cont.begin()) std::begin(const _Container&)'
   63 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:52:5: note:                 'template<class _Container> decltype (__cont.begin()) std::begin(_Container&)'
   52 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
In file included from /nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:36:
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/initializer_list:90:5: note:                 'template<class _Tp> constexpr const _Tp* std::begin(initializer_list<_Tp>)'
   90 |     begin(initializer_list<_Tp> __ils) noexcept
      |     ^~~~~
foo.cc:6:5: note:                 'int begin [1000010]'
    6 | int begin[N];
      |     ^~~~~
foo.cc:13:28: error: reference to 'end' is ambiguous
   13 |         cin >> begin[i] >> end[i];
      |                            ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/valarray:1255:5: note: candidates are: 'template<class _Tp> const _Tp* std::end(const valarray<_Tp>&)'
 1255 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/valarray:1239:5: note:                 'template<class _Tp> _Tp* std::end(valarray<_Tp>&)'
 1239 |     end(valarray<_Tp>& __va) noexcept
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:106:5: note:                 'template<class _Tp, long unsigned int _Nm> _Tp* std::end(_Tp (&)[_Nm])'
  106 |     end(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:85:5: note:                 'template<class _Container> decltype (__cont.end()) std::end(const _Container&)'
   85 |     end(const _Container& __cont) -> decltype(__cont.end())
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:74:5: note:                 'template<class _Container> decltype (__cont.end()) std::end(_Container&)'
   74 |     end(_Container& __cont) -> decltype(__cont.end())
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/initializer_list:101:5: note:                 'template<class _Tp> constexpr const _Tp* std::end(initializer_list<_Tp>)'
  101 |     end(initializer_list<_Tp> __ils) noexcept
      |     ^~~
foo.cc:7:5: note:                 'int end [1000010]'
    7 | int end[N];
      |     ^~~
foo.cc:15:21: error: reference to 'begin' is ambiguous
   15 |         for(int j = begin[i]; j <= end[i]; j++){
      |                     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/valarray:1228:5: note: candidates are: 'template<class _Tp> const _Tp* std::begin(const valarray<_Tp>&)'
 1228 |     begin(const valarray<_Tp>& __va) noexcept
      |     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/valarray:1217:5: note:                 'template<class _Tp> _Tp* std::begin(valarray<_Tp>&)'
 1217 |     begin(valarray<_Tp>& __va) noexcept
      |     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:95:5: note:                 'template<class _Tp, long unsigned int _Nm> _Tp* std::begin(_Tp (&)[_Nm])'
   95 |     begin(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:63:5: note:                 'template<class _Container> decltype (__cont.begin()) std::begin(const _Container&)'
   63 |     begin(const _Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:52:5: note:                 'template<class _Container> decltype (__cont.begin()) std::begin(_Container&)'
   52 |     begin(_Container& __cont) -> decltype(__cont.begin())
      |     ^~~~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/initializer_list:90:5: note:                 'template<class _Tp> constexpr const _Tp* std::begin(initializer_list<_Tp>)'
   90 |     begin(initializer_list<_Tp> __ils) noexcept
      |     ^~~~~
foo.cc:6:5: note:                 'int begin [1000010]'
    6 | int begin[N];
      |     ^~~~~
foo.cc:15:36: error: reference to 'end' is ambiguous
   15 |         for(int j = begin[i]; j <= end[i]; j++){
      |                                    ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/valarray:1255:5: note: candidates are: 'template<class _Tp> const _Tp* std::end(const valarray<_Tp>&)'
 1255 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/valarray:1239:5: note:                 'template<class _Tp> _Tp* std::end(valarray<_Tp>&)'
 1239 |     end(valarray<_Tp>& __va) noexcept
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:106:5: note:                 'template<class _Tp, long unsigned int _Nm> _Tp* std::end(_Tp (&)[_Nm])'
  106 |     end(_Tp (&__arr)[_Nm]) noexcept
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:85:5: note:                 'template<class _Container> decltype (__cont.end()) std::end(const _Container&)'
   85 |     end(const _Container& __cont) -> decltype(__cont.end())
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/bits/range_access.h:74:5: note:                 'template<class _Container> decltype (__cont.end()) std::end(_Container&)'
   74 |     end(_Container& __cont) -> decltype(__cont.end())
      |     ^~~
/nix/store/1x1q5sqa0ilbi8fz7aayk02pjy5g7jhh-gcc-12.3.0/include/c++/12.3.0/initializer_list:101:5: note:                 'template<class _Tp> constexpr const _Tp* std::end(initializer_list<_Tp>)'
  101 |     end(initializer_list<_Tp> __ils) noexcept
      |     ^~~
foo.cc:7:5: note:                 'int end [1000010]'
    7 | int end[N];
      |     ^~~

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