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 ‘_FIter std::upper_bound(_FIter, _FIter, const _Tp&) [with _FIter = std::_Rb_tree_iterator<std::pair<const int, int> >; _Tp = int]’: user.cpp:25:56: required from here /usr/include/c++/4.8/bits/stl_algo.h:2515:14: error: no match for ‘operator<’ (operand types are ‘const int’ and ‘std::pair<const int, int>’) if (__val < *__middle) ^ /usr/include/c++/4.8/bits/stl_algo.h:2515:14: note: candidates are: In file included from /usr/include/c++/4.8/regex:62:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108, from user.cpp:1: /usr/include/c++/4.8/bits/regex.h:1334:5: note: template<class _Bi_iter> bool std::operator<(const std::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&) operator<(const sub_match<_Bi_iter>& __lhs, ^ /usr/include/c++/4.8/bits/regex.h:1334:5: note: template argument deduction/substitution failed: 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:2515:14: note: mismatched types ‘const std::sub_match<_BiIter>’ and ‘const int’ if (__val < *__middle) ^ In file included from /usr/include/c++/4.8/regex:62:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108, from user.cpp:1: /usr/include/c++/4.8/bits/regex.h:1254:5: note: template<class _Bi_iter> bool std::operator<(const typename std::iterator_traits<_Iter>::value_type&, const std::sub_match<_BiIter>&) operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs, ^ /usr/include/c++/4.8/bits/regex.h:1254:5: note: template argument deduction/substitution failed: 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:2515:14: note: ‘std::pair<const int, int>’ is not derived from ‘const std::sub_match<_BiIter>’ if (__val < *__middle) ^ In file included from /usr/include/c++/4.8/regex:62:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108, from user.cpp:1: /usr/include/c++/4.8/bits/regex.h:1177:5: note: template<class _Bi_iter> bool std::operator<(const std::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*) operator<(const sub_match<_Bi_iter>& __lhs, ^ /usr/include/c++/4.8/bits/regex.h:1177:5: note: template argument deduction/substitution failed: 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:2515:14: note: mismatched types ‘const std::sub_match<_BiIter>’ and ‘const int’ if (__val < *__middle) ^ In file included from /usr/include/c++/4.8/regex:62:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,