Codeforces (236A) Problem Solution

 A - Boy or Girl

Problem Link: [Codeforces 236A##link##]

• [tab]
• C++

• #include<bits/stdc++.h>
  using namespace std;
  int main()
  {
  	string s;
  	cin>>s;
  	sort(&s[0],&s[s.length()]);
  	int count=0;
  	for(int i=0;i<s.length();i++)
  	{
  		if(s[i]==s[i-1])
  		{
  			continue;
  		}
  		count++;
  	}
  	if(count%2)
  		cout<<"IGNORE HIM!\n";
  	else
  		cout<<"CHAT WITH HER!\n";
  }

• Python3

• s = input()
  n = len(set(s))
  if(n%2==0):
      print("CHAT WITH HER!")
  else:
      print("IGNORE HIM!")

• JAVA

• import java.util.Scanner;
   
  public class Main {
   
      public static void main(String[] args) {
          Scanner sc = new Scanner(System.in);
          String s = sc.nextLine();
          System.out.println(s.chars().distinct().count()%2==0? "CHAT WITH HER!":"IGNORE HIM!");
      }
  }