MonoidRangeSumRangeUpdate - [区間和, 区間更新]
(lib/99-operator/monoid-lazy/MonoidRangeSumRangeUpdate.cpp)

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• Last update: 2023-05-30 04:39:19+09:00

Verified with

• test/segment-tree/LazySegmentTree-rsqruq.test.cpp

Code

/*
 * @title MonoidRangeSumRangeUpdate - [区間和, 区間更新]
 * @docs md/operator/monoid-lazy/MonoidRangeSumRangeUpdate.md
 */
template<class T, class U> struct MonoidRangeSumRangeUpdate {
	using TypeNode = T;
	using TypeLazy = U;
	inline static constexpr TypeNode unit_node = 0;
	inline static constexpr TypeLazy unit_lazy = -2000;
	inline static constexpr TypeNode func_fold(TypeNode l,TypeNode r){return 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!=-2000?lazy*(r-l):node;}
	inline static constexpr bool func_check(TypeNode nodeVal,TypeNode var){return var <= nodeVal;}
};

#line 1 "lib/99-operator/monoid-lazy/MonoidRangeSumRangeUpdate.cpp"
/*
 * @title MonoidRangeSumRangeUpdate - [区間和, 区間更新]
 * @docs md/operator/monoid-lazy/MonoidRangeSumRangeUpdate.md
 */
template<class T, class U> struct MonoidRangeSumRangeUpdate {
	using TypeNode = T;
	using TypeLazy = U;
	inline static constexpr TypeNode unit_node = 0;
	inline static constexpr TypeLazy unit_lazy = -2000;
	inline static constexpr TypeNode func_fold(TypeNode l,TypeNode r){return 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!=-2000?lazy*(r-l):node;}
	inline static constexpr bool func_check(TypeNode nodeVal,TypeNode var){return var <= nodeVal;}
};

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