Google test Problem A. Country Leader

题目比较简单，就是好好熟悉一下答题系统，练练手

package leetcode152;

import java.io.*;
import java.util.Scanner;

public class GoogleTest {



    public static void main(String[] args) throws Exception {

        String filename = "A-large-practice.in";
        System.setIn(new FileInputStream(filename));
        System.setOut(new PrintStream(new FileOutputStream("A-large-practice-out.txt")));
        Scanner scanner = new Scanner(System.in);
        GoogleTest ll = new GoogleTest(scanner);
        scanner.close();

    }

    public GoogleTest(Scanner in){

        int testSize = Integer.valueOf(in.nextLine());
//        System.out.println(testSize);
        for (int i = 0; i < testSize; i++){
            String tt = in.nextLine();
            int Num = Integer.valueOf(tt);
            String ans = in.nextLine();
            for (int j = 1; j < Num; j++){
                ans = Compare(ans, in.nextLine());
            }
            System.out.println("Case #" + (i+1) + ": " +ans);
        }
    }

    public String Compare(String str1, String str2){

        boolean[] Str1 = new boolean[26];
        int num1 = 0;
        for (int i = 0; i < str1.length(); i++){
            if (str1.charAt(i) == ' '){
                continue;
            }
            int num = str1.charAt(i) - 'A';
            if (Str1[num] == false){
                Str1[num] = true;
                num1++;
            }

        }
        boolean[] Str2 = new boolean[26];
        int num2 = 0;
        for (int i = 0; i < str2.length(); i++){
            if (str2.charAt(i) == ' '){
                continue;
            }
            int num = str2.charAt(i) - 'A';
            if (Str2[num] == false){
                Str2[num] = true;
                num2++;
            }

        }
        String ans = str1;
        if (num1 > num2){
             ans = str1;
        } else if (num1 < num2){
            ans = str2;
        } else {
            int i = 0;
            while ( i < str1.length() && i < str2.length()){
                if (str1.charAt(i) > str2.charAt(i)){
                    return str2;
                } else if (str1.charAt(i) < str2.charAt(i)){
                    return str1;
                } else {
                    i++;
                }
            }
        }
//        System.out.println(str1 + " " + num1 + " " + str2 + " " + num2 + " " + ans);
        return ans;
    }

}