Method assign

pyvrp/cpp/search/Route.cpp:12–17

Route::Node::Node(size_t loc) : loc_(loc), idx_(0), trip_(0), route_(nullptr) {}

void Route::Node::assign(Route *route, size_t idx, size_t trip)
{
    idx_ = idx;
    trip_ = trip;
    route_ = route;
}

void Route::Node::unassign()
{