Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:67:35: error: no match for ‘operator=’ (operand types are ‘std::unordered_map<int, int>’ and ‘int’) M[val[j]] = nod[j]; ^ user.cpp:67:35: note: candidates are: In file included from /usr/local/include/c++/4.8.0/unordered_map:48:0, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/unordered_map.h:194:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator=(const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&) [with _Key = int; _Tp = int; _Hash = std::hash<int>; _Pred = std::equal_to<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(const unordered_map&) = default; ^ /usr/local/include/c++/4.8.0/bits/unordered_map.h:194:7: note: no known conversion for argument 1 from ‘int’ to ‘const std::unordered_map<int, int>&’ /usr/local/include/c++/4.8.0/bits/unordered_map.h:198:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator=(std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&&) [with _Key = int; _Tp = int; _Hash = std::hash<int>; _Pred = std::equal_to<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(unordered_map&&) = default; ^ /usr/local/include/c++/4.8.0/bits/unordered_map.h:198:7: note: no known conversion for argument 1 from ‘int’ to ‘std::unordered_map<int, int>&&’ /usr/local/include/c++/4.8.0/bits/unordered_map.h:212:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator=(std::initializer_list<typename std::_Hashtable<_Key, std::pair<const _Key, _Tp>, _Alloc, std::__detail::_Select1st, _Pred, _Hash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<std::__not_<std::__and_<std::__is_fast_hash<_Hash>, std::is_default_constructible<_Hash>, std::is_copy_assignable<_Hash>, std::__detail::__is_noexcept_hash<_Key, _Hash> > >::value, false, true> >::value_type>) [with _Key = int; _Tp = int; _Hash = std::hash<int>; _Pred = std::equal_to<int>; _Alloc = std::allocator<std::pair<const int, int> >; typename std::_Hashtable<_Key, std::pair<const _Key, _Tp>, _Alloc, std::__detail::_Select1st, _Pred, _Hash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<std::__not_<std::__and_<std::__is_fast_hash<_Hash>, std::is_default_constructible<_Hash>, std::is_copy_assignable<_Hash>, std::__detail::__is_noexcept_hash<_Key, _Hash> > >::value, false, true> >::value_type = std::pair<const int, int>] operator=(initializer_list<value_type> __l) ^ /usr/local/include/c++/4.8.0/bits/unordered_map.h:212:7: note: no known conversion for argument 1 from ‘int’ to ‘std::initializer_list<std::pair<const int, int> >’ user.cpp:79:35: error: no match for ‘operator=’ (operand types are ‘std::unordered_map<int, int>’ and ‘int’) M[val[j]] = nod[j]; ^ user.cpp:79:35: note: candidates are: In file included from /usr/local/include/c++/4.8.0/unordered_map:48:0, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/unordered_map.h:194:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator=(const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&) [with _Key = int; _Tp = int; _Hash = std::hash<int>; _Pred = std::equal_to<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(const unordered_map&) = default; ^ /usr/local/include/c++/4.8.0/bits/unordered_map.h:194:7: note: no known conversion for argument 1 from ‘int’ to ‘const std::unordered_map<int, int>&’ /usr/local/include/c++/4.8.0/bits/unordered_map.h:198:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator=(std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&&) [with _Key = int; _Tp = int; _Hash = std::hash<int>; _Pred = std::equal_to<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(unordered_map&&) = default; ^ /usr/local/include/c++/4.8.0/bits/unordered_map.h:198:7: note: no known conversion for argument 1 from ‘int’ to ‘std::unordered_map<int, int>&&’ /usr/local/include/c++/4.8.0/bits/unordered_map.h:212:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator=(std::initializer_list<typename std::_Hashtable<_Key, std::pair<const _Key, _Tp>, _Alloc, std::__detail::_Select1st, _Pred, _Hash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<std::__not_<std::__and_<std::__is_fast_hash<_Hash>, std::is_default_constructible<_Hash>, std::is_copy_assignable<_Hash>, std::__detail::__is_noexcept_hash<_Key, _Hash> > >::value, false, true> >::value_type>) [with _Key = int; _Tp = int; _Hash = std::hash<int>; _Pred = std::equal_to<int>; _Alloc = std::allocator<std::pair<const int, int> >; typename std::_Hashtable<_Key, std::pair<const _Key, _Tp>, _Alloc, std::__detail::_Select1st, _Pred, _Hash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<std::__not_<std::__and_<std::__is_fast_hash<_Hash>, std::is_default_constructible<_Hash>, std::is_copy_assignable<_Hash>, std::__detail::__is_noexcept_hash<_Key, _Hash> > >::value, false, true> >::value_type = std::pair<const int, int>] operator=(initializer_list<value_type> __l) ^ /usr/local/include/c++/4.8.0/bits/unordered_map.h:212:7: note: no known conversion for argument 1 from ‘int’ to ‘std::initializer_list<std::pair<const int, int> >’ user.cpp:91:35: error: no match for ‘operator=’ (operand types are ‘std::unordered_map<int, int>’ and ‘int’) M[val[j]] = nod[j]; ^ user.cpp:91:35: note: candidates are: In file included from /usr/local/include/c++/4.8.0/unordered_map:48:0, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/unordered_map.h:194:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator=(const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&) [with _Key = int; _Tp = int; _Hash = std::hash<int>; _Pred = std::equal_to<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(const unordered_map&) = default; ^ /usr/local/include/c++/4.8.0/bits/unordered_map.h:194:7: note: no known conversion for argument 1 from ‘int’ to ‘const std::unordered_map<int, int>&’ /usr/local/include/c++/4.8.0/bits/unordered_map.h:198:7: note: std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator=(std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&&) [with _Key = int; _Tp = int; _Hash = std::hash<int>; _Pred = std::equal_to<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(unordered_map&&) = default; ^