Eroare de compilare: In file included from /usr/include/c++/6/algorithm:62:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:65, from main.cpp:1: /usr/include/c++/6/bits/stl_algo.h: In instantiation of 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]': /usr/include/c++/6/bits/stl_algo.h:1882:25: required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]' /usr/include/c++/6/bits/stl_algo.h:1968:31: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]' /usr/include/c++/6/bits/stl_algo.h:4707:18: required from 'void std::sort(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >]' main.cpp:51:9: required from 'void andrewScan(const std::vector<std::pair<_FIter, _FIter> >&, std::vector<std::pair<_FIter, _FIter> >&) [with T = double]' main.cpp:89:22: required from here /usr/include/c++/6/bits/stl_algo.h:1849:17: error: passing 'const std::pair<double, double>' as 'this' argument discards qualifiers [-fpermissive] *__first = _GLIBCXX_MOVE(__val); ^ In file included from /usr/include/c++/6/bits/stl_algobase.h:64:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/stl_pair.h:380:7: note: in call to 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__wrap_nonesuch&&>::type) [with _T1 = double; _T2 = double; typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__wrap_nonesuch&&>::type = std::pair<double, double>&&]' operator=(typename conditional< ^~~~~~~~ In file included from /usr/include/c++/6/bits/stl_algo.h:61:0, from /usr/include/c++/6/algorithm:62, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:65, from main.cpp:1: /usr/include/c++/6/bits/stl_heap.h: In instantiation of 'void std::__pop_heap(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]': /usr/include/c++/6/bits/stl_algo.h:1672:19: required from 'void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]' /usr/include/c++/6/bits/stl_algo.h:1930:25: required from 'void std::__partial_sort(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]' /usr/include/c++/6/bits/stl_algo.h:1945:27: required from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >; _Size = long int; _Compare = __gnu_cxx::__ops::_Iter_less_iter]' /usr/include/c++/6/bits/stl_algo.h:1965:25: required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >; _Compare = __gnu_cxx::__ops::_Iter_less_iter]' /usr/include/c++/6/bits/stl_algo.h:4707:18: required from 'void std::sort(_RAIter, _RAIter) [with _RAIter = __gnu_cxx::__normal_iterator<const std::pair<double, double>*, std::vector<std::pair<double, double> > >]' main.cpp:51:9: required from 'void andrewScan(const std::vector<std::pair<_FIter, _FIter> >&, std::vector<std::pair<_FIter, _FIter> >&) [with T = double]' main.cpp:89:22: required from here /usr/include/c++/6/bits/stl_heap.h:246:17: error: no match for 'operator=' (operand types are 'const std::pair<double, double>' and 'std::remove_reference<const std::pair<double, double>&>::type {aka const std::pair<double, double>}') *__result = _GLIBCXX_MOVE(*__first); ^ In file included from /usr/include/c++/6/bits/stl_algobase.h:64:0, from /usr/include/c++/6/bits/char_traits.h:39, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/sstream:38, from /usr/include/c++/6/complex:45, from /usr/include/c++/6/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:52, from main.cpp:1: /usr/include/c++/6/bits/stl_pair.h:363:7: note: candidate: std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_copy_assignable<_Tp>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__wrap_nonesuch&>::type) [with _T1 = double; _T2 = double; typename std::conditional<std::__and_<std::is_copy_assignable<_Tp>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__wrap_nonesuch&>::type = const std::pair<double, double>&] <near match> operator=(typename conditional< Non zero exit status: 1