Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:50: error: ‘hasNbh’ was not declared in this scope user.cpp:54: error: could not convert ‘q.std::queue<_Tp, _Sequence>::empty [with _Tp = dot, _Sequence = std::deque<dot, std::allocator<dot> >]’ to ‘bool’ user.cpp:54: error: in argument to unary ! user.cpp:56: error: conversion from ‘<unresolved overloaded function type>’ to non-scalar type ‘dot’ requested