algebra/monoid/monoid_max.hpp

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• Last update: 2026-04-11 00:41:57+09:00
• Include: #include "algebra/monoid/monoid_max.hpp"

Required by

• algebra/acted_monoid/acted_monoid_max_assign.hpp
• algebra/acted_monoid/acted_monoid_max_plus.hpp

Verified with

• segment_tree/test/lazy_segment_tree_min_assign.test.cpp
• segment_tree/test/lazy_segment_tree_min_plus.test.cpp
• segment_tree/test/segment_tree_min.test.cpp

Code

#pragma once

template <class T, T inf> struct MonoidMax {
    using value_type = T;
    static constexpr T operation(const T& a, const T& b) noexcept {
        return std::max(a, b);
    }
    static constexpr T identity() noexcept { return -inf; }
    static constexpr bool commutative = true;
};

#line 2 "algebra/monoid/monoid_max.hpp"

template <class T, T inf> struct MonoidMax {
    using value_type = T;
    static constexpr T operation(const T& a, const T& b) noexcept {
        return std::max(a, b);
    }
    static constexpr T identity() noexcept { return -inf; }
    static constexpr bool commutative = true;
};

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