Eroare de compilare: user.cpp: In function ‘void bfs(int)’: user.cpp:26:29: error: no match for ‘operator==’ (operand types are ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> > >::value_type {aka std::pair<int, int>}’ and ‘int’) if(G[n][nod][0] == 0){ ^ user.cpp:26:29: note: candidates are: In file included from /usr/include/c++/4.8/unordered_set:48:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:116, from user.cpp:1: /usr/include/c++/4.8/bits/unordered_set.h:1283:5: note: template<class _Value, class _Hash, class _Pred, class _Alloc> bool std::operator==(const std::unordered_multiset<_Value, _Hash, _Pred, _Alloc>&, const std::unordered_multiset<_Value, _Hash, _Pred, _Alloc>&) operator==(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, ^ /usr/include/c++/4.8/bits/unordered_set.h:1283:5: note: template argument deduction/substitution failed: user.cpp:26:32: note: ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> > >::value_type {aka std::pair<int, int>}’ is not derived from ‘const std::unordered_multiset<_Value, _Hash, _Pred, _Alloc>’ if(G[n][nod][0] == 0){ ^ In file included from /usr/include/c++/4.8/unordered_set:48:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:116, from user.cpp:1: /usr/include/c++/4.8/bits/unordered_set.h:1271:5: note: template<class _Value, class _Hash, class _Pred, class _Alloc> bool std::operator==(const std::unordered_set<_Value, _Hash, _Pred, _Alloc>&, const std::unordered_set<_Value, _Hash, _Pred, _Alloc>&) operator==(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, ^ /usr/include/c++/4.8/bits/unordered_set.h:1271:5: note: template argument deduction/substitution failed: user.cpp:26:32: note: ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> > >::value_type {aka std::pair<int, int>}’ is not derived from ‘const std::unordered_set<_Value, _Hash, _Pred, _Alloc>’ if(G[n][nod][0] == 0){ ^ In file included from /usr/include/c++/4.8/unordered_map:48:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:115, from user.cpp:1: /usr/include/c++/4.8/bits/unordered_map.h:1400:5: note: template<class _Key, class _Tp, class _Hash, class _Pred, class _Alloc> bool std::operator==(const std::unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>&, const std::unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>&) operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, ^ /usr/include/c++/4.8/bits/unordered_map.h:1400:5: note: template argument deduction/substitution failed: user.cpp:26:32: note: ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> > >::value_type {aka std::pair<int, int>}’ is not derived from ‘const std::unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>’ if(G[n][nod][0] == 0){ ^ In file included from /usr/include/c++/4.8/unordered_map:48:0, from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:115, from user.cpp:1: /usr/include/c++/4.8/bits/unordered_map.h:1388:5: note: template<class _Key, class _Tp, class _Hash, class _Pred, class _Alloc> bool std::operator==(const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&, const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&) operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, ^ /usr/include/c++/4.8/bits/unordered_map.h:1388:5: note: template argument deduction/substitution failed: user.cpp:26:32: note: ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> > >::value_type {aka std::pair<int, int>}’ is not derived from ‘const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>’ if(G[n][nod][0] == 0){ ^ In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:109:0, from user.cpp:1: /usr/include/c++/4.8/scoped_allocator:443:5: note: template<class _OutA1, class _OutA2, class ... _InA> bool std::operator==(const std::scoped_allocator_adaptor<_OutA1, _InA ...>&, const std::scoped_allocator_adaptor<_InnerHead, _InnerTail ...>&) operator==(const scoped_allocator_adaptor<_OutA1, _InA...>& __a, ^