A. Boy or Girl

最新推荐文章于 2022-02-23 13:19:49 发布

市井烟火气

最新推荐文章于 2022-02-23 13:19:49 发布

阅读量3.9k

点赞数

分类专栏： C F 水题

本文链接：https://blog.youkuaiyun.com/zhaobaole2018/article/details/86138163

版权

C F 水题专栏收录该内容

35 篇文章

订阅专栏

面对网络世界的匿名交流，如何通过用户名判断用户性别成为一项有趣而实用的技术。本文介绍了一种基于用户名中唯一字符数量的奇偶性来推断性别的方法，并提供了一个简单的C++实现示例。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Those days, many boys use beautiful girls’ photos as avatars in forums. So it is pretty hard to tell the gender of a user at the first glance. Last year, our hero went to a forum and had a nice chat with a beauty (he thought so). After that they talked very often and eventually they became a couple in the network.

But yesterday, he came to see “her” in the real world and found out “she” is actually a very strong man! Our hero is very sad and he is too tired to love again now. So he came up with a way to recognize users’ genders by their user names.

This is his method: if the number of distinct characters in one’s user name is odd, then he is a male, otherwise she is a female. You are given the string that denotes the user name, please help our hero to determine the gender of this user by his method.

Input
The first line contains a non-empty string, that contains only lowercase English letters — the user name. This string contains at most 100 letters.

Output
If it is a female by our hero’s method, print “CHAT WITH HER!” (without the quotes), otherwise, print “IGNORE HIM!” (without the quotes).

Examples
inputCopy
wjmzbmr
outputCopy
CHAT WITH HER!
inputCopy
xiaodao
outputCopy
IGNORE HIM!
inputCopy
sevenkplus
outputCopy
CHAT WITH HE

#include <iostream>
#include <set>
using namespace std;

int main()
{
    set<char> st;
    string s;
    while(cin >> s)
    {
        for(int i = 0; i < s.length(); ++i)
            st.insert(s[i]);
        if(st.size() & 1)
            cout << "IGNORE HIM!" << '\n';
        else
            cout << "CHAT WITH HER!" << '\n';
        st.clear();
    }
    return 0;
}