structure/bbst/persistent-red-black-tree.hpp

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• Last update: 2024-04-27 01:27:28+09:00
• Include: #include "structure/bbst/persistent-red-black-tree.hpp"

Code

template <typename Monoid, typename F, size_t FULL = 1000>
struct PersistentRedBlackTree : RedBlackTree<Monoid, F> {
  using RBT = RedBlackTree<Monoid, F>;
  using RBT::RedBlackTree;
  using Node = typename RBT::Node;

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

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

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

#line 1 "structure/bbst/persistent-red-black-tree.hpp"
template <typename Monoid, typename F, size_t FULL = 1000>
struct PersistentRedBlackTree : RedBlackTree<Monoid, F> {
  using RBT = RedBlackTree<Monoid, F>;
  using RBT::RedBlackTree;
  using Node = typename RBT::Node;

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

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

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

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