HDOJ2043(JAVAset容器练习)

import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;

public class Main {
    static PrintWriter cout = new PrintWriter(System.out, true);
    static Scanner cin = new Scanner(System.in);
    static final char[] chs = {‘~‘,‘!‘,‘@‘,‘#‘,‘$‘,‘%‘,‘^‘};
    static boolean isChar(char ch)
    {
        for(int i = 0; i < chs.length; i++)
            if(chs[i] == ch)
                return true;
        return false;
    }
    public static void main (String[] args){
        int t = cin.nextInt();
        while(t-- > 0)
        {
            String s = cin.next();
            if(!(s.length()>=8&&s.length()<=16))
            {
                cout.println("NO");
                continue;
            }
            int i = 0;
            HashSet<String> set = new HashSet<String>();
            while(i < s.length())
            {
                if(‘0‘<=s.charAt(i)&&s.charAt(i)<=‘9‘)
                {
                    set.add("1");
                }
                else if(‘a‘<=s.charAt(i)&&s.charAt(i)<=‘z‘)
                {
                    set.add("2");
                }
                else if(‘A‘<=s.charAt(i)&&s.charAt(i)<=‘Z‘)
                {
                    set.add("3");
                }
                else if(isChar(s.charAt(i)))
                {
                    set.add("4");
                }
                if(set.size() >= 3)
                {
                    break;
                }
                i++;
            }
            if(set.size() >= 3)
                cout.println("YES");
            else
                cout.println("NO");
        }

    }
}