Other/RandomNumberGenerator.hpp

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• Last update: 2023-04-05 23:10:22+09:00
• Include: #include "Other/RandomNumberGenerator.hpp"

Required by

• 順列である連続部分列の数え上げ (tips/CountSubpermutation.hpp)

Code

struct RandomNumberGenerator{
    mt19937 mt;
    RandomNumberGenerator():mt(chrono::steady_clock::now().time_since_epoch().count()){}
    // [a,b)
    int operator()(int a,int b){
        uniform_int_distribution<int> d(a,b-1);
        return d(mt);
    }
};

#line 1 "Other/RandomNumberGenerator.hpp"
struct RandomNumberGenerator{
    mt19937 mt;
    RandomNumberGenerator():mt(chrono::steady_clock::now().time_since_epoch().count()){}
    // [a,b)
    int operator()(int a,int b){
        uniform_int_distribution<int> d(a,b-1);
        return d(mt);
    }
};

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