Eroare de compilare: In file included from /usr/include/c++/4.8/algorithm:62:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from user.cpp:1: /usr/include/c++/4.8/bits/stl_algo.h: In instantiation of ‘_RandomAccessIterator std::__unguarded_partition(_RandomAccessIterator, _RandomAccessIterator, const _Tp&, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::tuple<int, int, int>*, std::vector<std::tuple<int, int, int> > >; _Tp = std::tuple<int, int, int>; _Compare = std::greater<std::tuple<int, int, int>&>]’: /usr/include/c++/4.8/bits/stl_algo.h:2319:78: required from ‘_RandomAccessIterator std::__unguarded_partition_pivot(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::tuple<int, int, int>*, std::vector<std::tuple<int, int, int> > >; _Compare = std::greater<std::tuple<int, int, int>&>]’ /usr/include/c++/4.8/bits/stl_algo.h:2360:62: required from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = __gnu_cxx::__normal_iterator<std::tuple<int, int, int>*, std::vector<std::tuple<int, int, int> > >; _Size = int; _Compare = std::greater<std::tuple<int, int, int>&>]’ /usr/include/c++/4.8/bits/stl_algo.h:5513:44: required from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = __gnu_cxx::__normal_iterator<std::tuple<int, int, int>*, std::vector<std::tuple<int, int, int> > >; _Compare = std::greater<std::tuple<int, int, int>&>]’ user.cpp:40:59: required from here /usr/include/c++/4.8/bits/stl_algo.h:2287:35: error: no match for call to ‘(std::greater<std::tuple<int, int, int>&>) (std::tuple<int, int, int>&, const std::tuple<int, int, int>&)’ while (__comp(*__first, __pivot)) ^ In file included from /usr/include/c++/4.8/string:48:0, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from user.cpp:1: /usr/include/c++/4.8/bits/stl_function.h:222:12: note: candidate is: struct greater : public binary_function<_Tp, _Tp, bool> ^ /usr/include/c++/4.8/bits/stl_function.h:225:7: note: bool std::greater<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = std::tuple<int, int, int>&] operator()(const _Tp& __x, const _Tp& __y) const ^ /usr/include/c++/4.8/bits/stl_function.h:225:7: note: no known conversion for argument 2 from ‘const std::tuple<int, int, int>’ to ‘std::tuple<int, int, int>&’ In file included from /usr/include/c++/4.8/algorithm:62:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64, from user.cpp:1: /usr/include/c++/4.8/bits/stl_algo.h:2290:34: error: no match for call to ‘(std::greater<std::tuple<int, int, int>&>) (const std::tuple<int, int, int>&, std::tuple<int, int, int>&)’ while (__comp(__pivot, *__last)) ^ In file included from /usr/include/c++/4.8/string:48:0, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/istream:38, from /usr/include/c++/4.8/sstream:38, from /usr/include/c++/4.8/complex:45, from /usr/include/c++/4.8/ccomplex:38, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52, from user.cpp:1: /usr/include/c++/4.8/bits/stl_function.h:222:12: note: candidate is: struct greater : public binary_function<_Tp, _Tp, bool> ^ /usr/include/c++/4.8/bits/stl_function.h:225:7: note: bool std::greater<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = std::tuple<int, int, int>&] operator()(const _Tp& __x, const _Tp& __y) const ^