generator.cpp

#include <string>
#include <unordered_map>
#include <vector>
#include <fstream>
#include <math.h>
#include <cctype>
#include <iostream>
#include <algorithm>
#include <random>

inline static const int SEED = 40623046;
using Permutation = std::unordered_map<char, char>;

inline Permutation CreateRandomPermutation(const std::vector<char> &alphabet,
                                            std::mt19937 *generator) {
    std::vector<char> target = alphabet;
    // std::mt19937 gen(SEED); // так компилируется
    // std::shuffle(target.begin(), target.end(), gen);
    std::shuffle(target.begin(), target.end(), *generator); // так нет

    Permutation permutation;
    for (size_t i = 0; i < alphabet.size(); ++i) {
        permutation[alphabet[i]] = target[i];
    }
    return permutation;
}

inline void Test() {
    std::mt19937 generator(SEED);
    std::vector<char> alphabet{'a', 'b', 'c'};
    auto permutation = CreateRandomPermutation(alphabet, &generator);
}