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View Compilation Error

0_0_37629016_22466.cpp: In function 'void solve()':
0_0_37629016_22466.cpp:55:14: error: expected unqualified-id before '[' token
         auto [l, r, id] = q[i];
              ^
0_0_37629016_22466.cpp:56:24: error: 'r' was not declared in this scope
         while (range < r) {
                        ^
0_0_37629016_22466.cpp:65:13: error: 'id' was not declared in this scope
         ans[id] = fen.rangeSum(l, r);
             ^
0_0_37629016_22466.cpp:65:32: error: 'l' was not declared in this scope
         ans[id] = fen.rangeSum(l, r);
                                ^
0_0_37629016_22466.cpp:65:35: error: 'r' was not declared in this scope
         ans[id] = fen.rangeSum(l, r);
                                   ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:71:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/istream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/sstream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/complex:45,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ccomplex:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/stdc++.h:52,
                 from 0_0_37629016_22466.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_comp_iter<_Compare>::operator()(_Iterator1, _Iterator2) [with _Iterator1 = __gnu_cxx::__normal_iterator<std::array<int, 3ull>*, std::vector<std::array<int, 3ull> > >; _Iterator2 = __gnu_cxx::__normal_iterator<std::array<int, 3ull>*, std::vector<std::array<int, 3ull> > >; _Compare = solve()::<lambda(const auto:1&, const auto:2&)>]':
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:1846:27:   required from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::array<int, 3ull>*, std::vector<std::array<int, 3ull> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<solve()::<lambda(const auto:1&, const auto:2&)> >]'
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:1884:70:   required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::array<int, 3ull>*, std::vector<std::array<int, 3ull> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<solve()::<lambda(const auto:1&, const auto:2&)> >]'
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:1970:55:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::array<int, 3ull>*, std::vector<std::array<int, 3ull> > >; _Compare = __gnu_cxx::__ops::_Iter_comp_iter<solve()::<lambda(const auto:1&, const auto:2&)> >]'
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algo.h:4716:78:   required from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::array<int, 3ull>*, std::vector<std::array<int, 3ull> > >; _Compare = solve()::<lambda(const auto:1&, const auto:2&)>]'
0_0_37629016_22466.cpp:49:6:   required from here
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/predefined_ops.h:121:46: error: invalid use of 'auto'
         { return bool(_M_comp(*__it1, *__it2)); }
                                              ^


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