Product monoid
(Mylib/AlgebraicStructure/Monoid/product.cpp)

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• Last update: 2021-04-23 23:44:44+09:00

Operations

Requirements

Notes

Problems

References

Verified with

• test/aoj/3132/main.test.cpp

Code

#pragma once

namespace haar_lib {
  template <typename T>
  struct product_monoid {
    using value_type = T;
    value_type operator()() const { return 1; }
    value_type operator()(value_type a, value_type b) const { return a * b; }
  };
}  // namespace haar_lib

#line 2 "Mylib/AlgebraicStructure/Monoid/product.cpp"

namespace haar_lib {
  template <typename T>
  struct product_monoid {
    using value_type = T;
    value_type operator()() const { return 1; }
    value_type operator()(value_type a, value_type b) const { return a * b; }
  };
}  // namespace haar_lib

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