刘谦魔术

#include <iostream>
#include <vector>
#include <random>
using namespace std;
random_device rd;
mt19937_64 gen(rd());

void print(vector<int>& arr)
{
    for (auto& x : arr)
        cout << x << " ";
    cout << "\n";
}

void cyclic_shift(vector<int>& arr, int n)
{
    n = n % (int)arr.size();
    vector<int> tmp(arr.begin(), arr.begin() + n);
    arr.erase(arr.begin(), arr.begin() + n);
    arr.insert(arr.end(), tmp.begin(), tmp.end());
}

void insert_in(vector<int>& arr, int n = 3)
{
    vector<int> tmp(arr.begin(), arr.begin() + n);
    arr.erase(arr.begin(), arr.begin() + n);
    int pos = uniform_int_distribution<>(1, arr.size() - 1)(gen);
    arr.insert(arr.begin() + pos, tmp.begin(), tmp.end());
}

void lucky(vector<int>& arr, int n = 4)
{
    while (n--)
    {
        arr.push_back(*arr.begin());
        arr.erase(arr.begin());
        arr.erase(arr.begin());
    }
}

int main()
{
    int a, b, c, d;
    vector<int> arr;
    cin >> a >> b >> c >> d;
    int N = 10;
    cout << "\n\n\n\n";
    while (N--)
    {
        for (int i = 0; i < 2; i++)
        {
            arr.push_back(a);
            arr.push_back(b);
            arr.push_back(c);
            arr.push_back(d);
        }
        print(arr);
        int name_len = uniform_int_distribution<>(1, 100)(gen);
        cyclic_shift(arr, name_len);       // 名字，循环移位
        cout << "名字长度 = " << name_len << "，循环移位\n";
        print(arr);
        insert_in(arr);             // 顶部三张插入
        cout << "顶部三张插入中间\n";
        print(arr);

        int result_1 = arr[0];
        arr.erase(arr.begin());     // 第一张藏起来
        cout << "第一张取出，藏起来\n";
        print(arr);

        int n1 = uniform_int_distribution<>(1, 3)(gen);    // 南方北方，插入
        insert_in(arr, n1);
        cout << "南方北方，插入前"<< n1 << "\n";
        print(arr);

        int n2 = uniform_int_distribution<>(1, 2)(gen);;    // 男生女生 扔掉
        arr.erase(arr.begin(), arr.begin() + n2);
        if (n2 == 1) cout << "男生扔掉顶部1张\n";
        else cout << "女生扔掉顶部2张\n";
        print(arr);

        cyclic_shift(arr, 7);       // 见证奇迹的时刻,七个字循环移位
        cout << "见证奇迹的时刻,七个字循环移位\n";
        print(arr);

        lucky(arr, 4);     // 好运留下，烦恼丢出 做4次
        cout << "好运留下，烦恼丢出 做4次\n";
        print(arr);

        if (n2 == 1)
        {
            cout << "男生好运留下，烦恼丢出，再做1次，男生结果\n";
            lucky(arr, 1);
            cout << "最后剩下： "; print(arr);
            cout << "藏起来：  " << result_1 << endl;
        }
        else
        {
            cout << "女生结果：\n";
            cout << "最后剩下： "; print(arr);
            cout << "藏起来：  " << result_1 << endl;
        }
        arr.clear();
        cout << "\n\n\n\n\n";
    }
}