Monoid: GCD
(algebra/monoid_gcd.hpp)

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• Last update: 2026-10-23 22:06:19+09:00
• Include: #include "algebra/monoid_gcd.hpp"

Verified with

• test/unit/monoid.test.cpp
• test/unit/sparse_table.test.cpp

Code

#pragma once
#include <numeric>
template <class T>
struct monoid_gcd {
    using S = T;
    static S op(S a, S b) {
        return std::gcd(a, b);
    }
    static S e() {
        return T(0);
    }
};

#line 2 "algebra/monoid_gcd.hpp"
#include <numeric>
template <class T>
struct monoid_gcd {
    using S = T;
    static S op(S a, S b) {
        return std::gcd(a, b);
    }
    static S e() {
        return T(0);
    }
};

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