#include<iostream>

#include<string>

#include<iomanip>

using namespace std;

class Info {

public:

    Info(){ }

    Info(string name, string number, string w, int num) : nickname{ name }, contact{ number }, city{ w }, n{ num } { }

    void print() const

    {

        cout << left << setw(10) << "称呼:" << nickname << endl;

        cout << setw(10) << "联系方式:" << contact << endl;

        cout << setw(10) << "所在城市:" << city << endl;

        cout << setw(10) << "预定人数:" << n << endl;

    }

private:

    string nickname;

    string contact;

    string city;

    int n;

};

#include"Info.hpp"

#include<iostream>

#include<vector>

#include<string>

#include<limits>

using namespace std;

static int num = 0;

int main()

{

    vector<Info> audience_info_list;

    string n_nickname, n_contact, n_city;

    int n = 0;

    const int capacity = 100;

    cout << "录入信息：\n" << endl;

    cout << "称呼/昵称，联系方式（邮箱/手机号），所在城市，预定参加人数" << endl;

    while (cin >> n_nickname)

    {

        cin >> n_contact >> n_city >> n;

        if (n + num <= capacity)

        {

            Info audience(n_nickname, n_contact, n_city, n);

            audience_info_list.push_back(audience);

            num += n;

        }

        else

        {

            char input;

            cout << "对不起，只剩" << capacity - num << "个位置。" << endl;

            cout << "1.输出u，更新（update）预定信息" << endl;

            cout << "2.输出q，退出预定" << endl;

            cout << "你的选择: ";

            cin >> input;

            if (input == 'q')

            {

                break;

            }

        }

    }

    cout << "截至目前，一共有" << num << "位听众预定参加。预定听众信息如下:" << endl;

    for (auto item : audience_info_list)

        item.print();

}

#include <iostream>

#include <string>

using namespace std;

class TextCoder

{

public:

    TextCoder(string tex = NULL) : text{ tex } { }

    string encoder()

    {

        for (auto& item : text)

        {

            if (item >= 'a' && item <= 'z')

                item = 'a' + (item - 'a' + 5) % 26;

            else if (item >= 'A' && item <= 'Z')

                item = 'A' + (item - 'A' + 5) % 26;

        }

        return text;

    }

    string decoder()

    {

        for (auto& item : text)

        {

            if (item >= 'a' && item <= 'z')

                item = 'a' + (item - 'a' + (26 - 5)) % 26;

            else if (item >= 'A' && item <= 'Z')

                item = 'A' + (item - 'A' + (26 - 5)) % 26;

        }

        return text;

    }

private:

    string text;

};

#include "textcoder.hpp"

#include <iostream>

#include <string>

int main()

{

    using namespace std;

    string text, encoded_text, decoded_text;

    cout << "输入英文文本: ";

    while (getline(cin, text))

    {

        encoded_text = TextCoder(text).encoder(); // 这里使用的是临时无名对象

        cout << "加密后英文文本:\t" << encoded_text << endl;

        decoded_text = TextCoder(encoded_text).decoder(); // 这里使用的是临时无名对象

            cout << "解密后英文文本:\t" << decoded_text << endl;

        cout << "\n输入英文文本: ";

    }

}