先声明一下，这是一篇水帖。
也不知道该说啥了。。。

上代码吧：

#include<bits/stdc++.h>

using namespace std;
string a;
int main() {
    int xunhuan = 0;
    printf("如果在已设定好的姓的区域内，则输出“存在”,第一个字母大写，\n否则输出“不存在”。\n");
    while (xunhuan = 1) {

        cin >> a;
        string b = "zeng";
        string c = "jiang";
        string d = "zhou";
        string e = "yan";
        string f = "yao";
        string g = "xu";
        string h = "zhu";
        string i = "huang";
        string j = "meng";
        string k = "pan";
        string l = "fang";
        string m = "zhao";
        string n = "qian";
        string o = "li";
        string p = "wu";
        string q = "zheng";
        string r = "wang";
        string s = "feng";
        string t = "chen";
        string u = "chu";
        string v = "wei";
        string w = "su";
        string x = "shen";
        string y = "han";
        string z = "yang";
        string a_1 = "zhu";
        string b_1 = "qin";
        string c_1 = "you";
        string d_1 = "he";
        string e_1 = "lu";
        string f_1 = "shi";
        string g_1 = "zhang";
        string h_1 = "kong";
        string i_1 = "cao";
        string j_1 = "yan";
        string k_1 = "hua";
        string l_1 = "jin";
        string m_1 = "wei";
        string n_1 = "tao";
        string o_1 = "wei";
        string p_1 = "xie";
        string q_1 = "zou";
        string r_1 = "yu";
        string s_1 = "bai";
        string t_1 = "shui";
        string u_1 = "dou";
        string v_1 = "zhang";
        string w_1 = "yun";

        if (a == b)
            cout << "存在" << endl;



        if (a == c)
            cout << "存在" << endl;

        if (a == d)
            cout << "存在" << endl;

        if (a == e)
            cout << "存在" << endl;

        if (a == f)
            cout << "存在" << endl;

        if (a == g)
            cout << "存在" << endl;

        if (a == h)

            cout << "存在" << endl;

        if (a == i)
            cout << "存在" << endl;
        if (a == j)
            cout << "存在" << endl;
        if (a == k)
            cout << "存在" << endl;
        if (a == l)
            cout << "存在" << endl;
        if (a == m)
            cout << "存在" << endl;
        if (a == n)
            cout << "存在" << endl;
        if (a == o)
            cout << "存在" << endl;
        if (a == p)
            cout << "存在" << endl;
        if (a == q)
            cout << "存在" << endl;
        if (a == r)
            cout << "存在" << endl;
        if (a == s)
            cout << "存在" << endl;
        if (a == t)
            cout << "存在" << endl;
        if (a == u)
            cout << "存在" << endl;
        if (a == v)
            cout << "存在" << endl;
        if (a == w)
            cout << "存在" << endl;
        if (a == x)
            cout << "存在" << endl;
        if (a == y)
            cout << "存在" << endl;
        if (a == z)
            cout << "存在" << endl;
        if (a == a_1)
            cout << "存在" << endl;
        if (a == b_1)
            cout << "存在" << endl;
        if (a == c_1 )
            cout << "存在" << endl;

        if (a == d_1)
            cout << "存在" << endl;

        if (a == e_1)
            cout << "存在" << endl;

        if (a == f_1)
            cout << "存在" << endl;
        if (a == g_1)
            cout << "存在" << endl;
        if (a == h_1)
            cout << "存在" << endl;
        if (a == i_1)
            cout << "存在" << endl;
        if (a == j_1)
            cout << "存在" << endl;
        if (a == k_1)
            cout << "存在" << endl;
        if (a == l_1)
            cout << "存在" << endl;
        if (a == m_1)
            cout << "存在" << endl;
        if (a == n_1)
            cout << "存在" << endl;
        if (a == o_1)
            cout << "存在" << endl;
        if (a == p_1)
            cout << "存在" << endl;
        if (a == q_1)
            cout << "存在" << endl;
        if (a == r_1)
            cout << "存在" << endl;
        if (a == s_1)
            cout << "存在" << endl;
        if (a == t_1)
            cout << "存在" << endl;
        if (a == u_1)
            cout << "存在" << endl;
        if (a == v_1)
            cout << "存在" << endl;
        if (a == w_1)
            cout << "存在" << endl;

        if (a >= "a" && a <= "z")
            a[0] -= 32;
        if (a[0] == 'z')a[0] = 'Z';
        cout << a << endl;



    }
}