Persistent-Lazy-Weight-Balanced-Tree(永続遅延伝搬重み平衡木) (structure/bbst/persistent-lazy-weight-balanced-tree.hpp)

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• Last update: 2024-05-01 23:44:47+09:00
• Include: #include "structure/bbst/persistent-lazy-weight-balanced-tree.hpp"

Code

/**
 * @brief Persistent-Lazy-Weight-Balanced-Tree(永続遅延伝搬重み平衡木)
 */
template <typename Monoid, typename OperatorMonoid, typename F, typename G,
          typename H, size_t FULL = 1000>
struct PersistentLazyWeightBalancedTree
    : LazyWeightBalancedTree<Monoid, OperatorMonoid, F, G, H> {
  using LWBT = LazyWeightBalancedTree<Monoid, OperatorMonoid, F, G, H>;
  using LWBT::LazyWeightBalancedTree;
  using Node = typename LWBT::Node;

 private:
  Node *clone(Node *t) override { return &(*LWBT::pool.alloc() = *t); }

 public:
  Node *rebuild(Node *r) {
    auto ret = LWBT::dump(r);
    LWBT::pool.clear();
    return LWBT::build(ret);
  }

  bool almost_full() const { return this->pool.ptr < FULL; }
};

#line 1 "structure/bbst/persistent-lazy-weight-balanced-tree.hpp"
/**
 * @brief Persistent-Lazy-Weight-Balanced-Tree(永続遅延伝搬重み平衡木)
 */
template <typename Monoid, typename OperatorMonoid, typename F, typename G,
          typename H, size_t FULL = 1000>
struct PersistentLazyWeightBalancedTree
    : LazyWeightBalancedTree<Monoid, OperatorMonoid, F, G, H> {
  using LWBT = LazyWeightBalancedTree<Monoid, OperatorMonoid, F, G, H>;
  using LWBT::LazyWeightBalancedTree;
  using Node = typename LWBT::Node;

 private:
  Node *clone(Node *t) override { return &(*LWBT::pool.alloc() = *t); }

 public:
  Node *rebuild(Node *r) {
    auto ret = LWBT::dump(r);
    LWBT::pool.clear();
    return LWBT::build(ret);
  }

  bool almost_full() const { return this->pool.ptr < FULL; }
};

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