MonoidRangeMulPointUpdate - [区間積, 一点更新]
(lib/99-operator/monoid/MonoidRangeMulPointUpdate.cpp)

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

Verified with

• test/graph/Tree-hld-path.test.cpp

Code

/*
 * @title MonoidRangeMulPointUpdate - [区間積, 一点更新]
 * @docs md/operator/monoid/MonoidRangeMulPointUpdate.md
 */
template<class T> struct MonoidRangeMulPointUpdate {
    using TypeNode = T;
    inline static TypeNode unit_node = TypeNode::E();
    inline static constexpr TypeNode func_fold(TypeNode l,TypeNode r){return l*r;}
    inline static constexpr TypeNode func_operate(TypeNode l,TypeNode r){return r;}
    inline static constexpr bool func_check(TypeNode nodeVal,TypeNode var){return var > nodeVal;}
};

#line 1 "lib/99-operator/monoid/MonoidRangeMulPointUpdate.cpp"
/*
 * @title MonoidRangeMulPointUpdate - [区間積, 一点更新]
 * @docs md/operator/monoid/MonoidRangeMulPointUpdate.md
 */
template<class T> struct MonoidRangeMulPointUpdate {
    using TypeNode = T;
    inline static TypeNode unit_node = TypeNode::E();
    inline static constexpr TypeNode func_fold(TypeNode l,TypeNode r){return l*r;}
    inline static constexpr TypeNode func_operate(TypeNode l,TypeNode r){return r;}
    inline static constexpr bool func_check(TypeNode nodeVal,TypeNode var){return var > nodeVal;}
};

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