Eroare de compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:21:36: error: no match for ‘operator+’ (operand types are ‘std::vector<int>’ and ‘long long int’) dp[nod]=max(dp[nod], v[nod]+dp[x]); ^ user.cpp:21:36: note: candidates are: In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:333:5: note: template<class _Iterator> std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&) operator+(typename reverse_iterator<_Iterator>::difference_type __n, ^ /usr/include/c++/4.8/bits/stl_iterator.h:333:5: note: template argument deduction/substitution failed: user.cpp:21:41: note: mismatched types ‘const std::reverse_iterator<_Iterator>’ and ‘long long int’ dp[nod]=max(dp[nod], v[nod]+dp[x]); ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/stl_iterator.h:1118:5: note: template<class _Iterator> std::move_iterator<_Iterator> std::operator+(typename std::move_iterator<_Iterator>::difference_type, const std::move_iterator<_Iterator>&) operator+(typename move_iterator<_Iterator>::difference_type __n, ^ /usr/include/c++/4.8/bits/stl_iterator.h:1118:5: note: template argument deduction/substitution failed: user.cpp:21:41: note: mismatched types ‘const std::move_iterator<_Iterator>’ and ‘long long int’ dp[nod]=max(dp[nod], v[nod]+dp[x]); ^ In file included from /usr/include/c++/4.8/string:52:0, 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/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/basic_string.h:2365:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&) operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, ^ /usr/include/c++/4.8/bits/basic_string.h:2365:5: note: template argument deduction/substitution failed: user.cpp:21:41: note: ‘std::vector<int>’ is not derived from ‘const std::basic_string<_CharT, _Traits, _Alloc>’ dp[nod]=max(dp[nod], v[nod]+dp[x]); ^ In file included from /usr/include/c++/4.8/string:53:0, 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/ostream:38,