Method numActiveNodes

highs/mip/HighsNodeQueue.h:293–295

  int64_t numNodes() const { return nodes.size() - freeslots.size(); }

  int64_t numActiveNodes() const {
    return nodes.size() - freeslots.size() - numSuboptimal;
  }

  bool empty() const { return numActiveNodes() == 0; }
};