UVA - 489 - Hangman Judge

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringBuffer sb=new StringBuffer();
        while(true){
            int round=Integer.parseInt(br.readLine());
            if(round==-1){
                break;
            }
            sb.append("Round ").append(round).append("\n");
            String ans=br.readLine();
            String chosen=br.readLine();
            int[]should=new int[26];
            for(int i=0;i<ans.length();i++){
                should[ans.charAt(i)-97]++;
            }
            int correct=0;
            int wrong=0;
            boolean[]cb=new boolean[26];
            for(int i=0;i<chosen.length();i++){
                int ind=chosen.charAt(i)-97;
                if(!cb[ind]){
                    if(should[ind]>0){
                        correct+=should[ind];
                    }
                    else{
                        wrong++;
                    }
                    if(correct==ans.length()){
                        break;
                    }
                    if(wrong==7){
                        break;
                    }
                    cb[ind]=true;
                }
            }
            if(correct==ans.length()){
                sb.append("You win.\n");
            }else if(wrong==7){
                sb.append("You lose.\n");
            }else{
                sb.append("You chickened out.\n");
            }
        }
        System.out.print(sb);
    }
}