CodeForces 236 A.Boy or Girl（水~）

Description

给出一个只由小写字母组成的字符串，如果出现的字母种类为奇数则输出IGNORE HIM!，是偶数则输出CHAT WITH HER!

Input

一个只由小写字母组成的字符串，字符串串长不超过100

Output

如果出现的字母种类为奇数则输出IGNORE HIM!，是偶数则输出CHAT WITH HER!

Sample Input

xiaodao

Sample Output

IGNORE HIM!

Solution

水题

Code

#include<cstdio>#include<iostream>#include<cstring>#include<algorithm>#include<cmath>#include<vector>#include<queue>#include<map>#include<set>#include<ctime>using namespace std;typedef long long ll;typedef pair<int,int>P;const int INF=0x3f3f3f3f,maxn=100001;char s[maxn];int flag[33];int main(){    while(~scanf("%s",s))    {        memset(flag,0,sizeof(flag));        int n=strlen(s),num=0;        for(int i=0;i<n;i++)flag[s[i]-'a']=1;        for(int i=0;i<26;i++)num+=flag[i];        if(num%2==0)printf("CHAT WITH HER!\n");        else printf("IGNORE HIM!\n");    }    return 0;}