MonoidRangeFoldMinRangeOperateUpdate - fold:区間min, operate:区間更新
(lib/99-operator/monoid-lazy/MonoidRangeFoldMinRangeOperateUpdate.cpp)

• View this file on GitHub
• Last update: 2023-05-30 04:39:19+09:00

Verified with

• test/binary-search-tree/LazyRandomizedBinarySearchTreeSequence-insert-erase.test.cpp
• test/binary-search-tree/LazySplayTreeSequence-insert-erase.test.cpp
• test/binary-search-tree/LazySplayTreeSequence-rmq.test.cpp

Code

/*
 * @title MonoidRangeFoldMinRangeOperateUpdate - fold:区間min, operate:区間更新
 * @docs md/operator/monoid-lazy/MonoidRangeFoldMinRangeOperateUpdate.md
 */
template<class T, class U> struct MonoidRangeFoldMinRangeOperateUpdate {
	using TypeNode = T;
	using TypeLazy = U;
	inline static constexpr TypeNode unit_node = 1000'000'001LL;
	inline static constexpr TypeLazy unit_lazy = 1000'000'001LL;
	inline static constexpr TypeNode func_fold(TypeNode l,TypeNode r){return min(l,r);}
	inline static constexpr TypeLazy func_lazy(TypeLazy old_lazy,TypeLazy new_lazy){return new_lazy;}
	inline static constexpr TypeNode func_operate(TypeNode node,TypeLazy lazy,int l, int r){return lazy==unit_lazy?node:lazy;}
	inline static constexpr bool func_check(TypeNode nodeVal,TypeNode var){return var <= nodeVal;}
};

#line 1 "lib/99-operator/monoid-lazy/MonoidRangeFoldMinRangeOperateUpdate.cpp"
/*
 * @title MonoidRangeFoldMinRangeOperateUpdate - fold:区間min, operate:区間更新
 * @docs md/operator/monoid-lazy/MonoidRangeFoldMinRangeOperateUpdate.md
 */
template<class T, class U> struct MonoidRangeFoldMinRangeOperateUpdate {
	using TypeNode = T;
	using TypeLazy = U;
	inline static constexpr TypeNode unit_node = 1000'000'001LL;
	inline static constexpr TypeLazy unit_lazy = 1000'000'001LL;
	inline static constexpr TypeNode func_fold(TypeNode l,TypeNode r){return min(l,r);}
	inline static constexpr TypeLazy func_lazy(TypeLazy old_lazy,TypeLazy new_lazy){return new_lazy;}
	inline static constexpr TypeNode func_operate(TypeNode node,TypeLazy lazy,int l, int r){return lazy==unit_lazy?node:lazy;}
	inline static constexpr bool func_check(TypeNode nodeVal,TypeNode var){return var <= nodeVal;}
};

Back to top page