C++11のstd::discrete_distributionを使ったときのおみくじプログラム

discrete_distribution_omikuji.cpp

#include <iostream>
#include <random>

int main()
{
    std::vector<int> prob = {1, 9, 25, 25, 30, 9, 1};
    const std::string str[] = {"大吉", "中吉", "小吉", "吉末", "吉", "凶", "大凶"};

    std::mt19937 rng;
    std::discrete_distribution<int> dst(prob.begin(), prob.end());

    //おみくじを引きまくる
    while(1)
    {
        std::cout << str[dst(rng)] << std::endl;
    }
}