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BaseBallGame.java
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BaseBallGame.java
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import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.Queue;
import java.util.StringTokenizer;
public class BaseBallGame {
private static boolean[] numberArr = new boolean[900];
private static Queue<Game> games = new LinkedList<>();
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st;
int N = Integer.parseInt(br.readLine());
Arrays.fill(numberArr, true);
for(int game = 0; game < N; game++) {
st = new StringTokenizer(br.readLine(), " ");
int number = Integer.parseInt(st.nextToken());
int strikeCount = Integer.parseInt(st.nextToken());
int ballCount = Integer.parseInt(st.nextToken());
games.add(new Game(number, strikeCount, ballCount));
}
mkNumberArr();
System.out.println(getResult());
}
private static void mkNumberArr() {
while(!games.isEmpty()) {
Game game = games.poll();
for(int index = 0; index < numberArr.length; index++) {
if(!numberArr[index]) continue;
int number = index + 100;
if(!checkNumberValidation(number)) {
numberArr[index] = false;
continue;
}
int gameNumber = game.getNumber();
int strikeCount = game.getStrikeCount();
int ballCount = game.getBallCount();
int sCount = getStrikeCount(number, gameNumber);
int bCount = getBallCount(number, gameNumber);
if(strikeCount != sCount || ballCount != bCount) numberArr[index] = false;
}
}
}
private static boolean checkNumberValidation(int number) {
int first = number / 100;
int second = (number % 100) / 10;
int third = number % 10;
if(first == 0 || second == 0 || third == 0) return false;
return (first != second) && (first != third) && (second != third);
}
private static int getStrikeCount(int origin, int gameNumber) {
int strikeCount = 0;
if(origin / 100 == gameNumber / 100) strikeCount++;
if((origin % 100) / 10 == (gameNumber % 100) / 10) strikeCount++;
if(origin % 10 == gameNumber % 10) strikeCount++;
return strikeCount;
}
private static int getBallCount(int origin, int gameNumber) {
int ballCount = 0;
int firstNumber = gameNumber / 100;
int secondNumber = (gameNumber % 100) / 10;
int thirdNumber = gameNumber % 10;
int originFirst = origin / 100;
int originSecond = (origin % 100) / 10;
int originThird = origin % 10;
if(firstNumber == originSecond || firstNumber == originThird) ballCount++;
if(secondNumber == originFirst || secondNumber == originThird) ballCount++;
if(thirdNumber == originFirst || thirdNumber == originSecond) ballCount++;
return ballCount;
}
private static int getResult() {
int count = 0;
for(boolean value : numberArr) {
if(value) count++;
}
return count;
}
private static class Game {
private int number;
private int strikeCount;
private int ballCount;
public Game(int number, int strikeCount, int ballCount) {
this.number = number;
this.strikeCount = strikeCount;
this.ballCount = ballCount;
}
public int getNumber() {
return this.number;
}
public int getStrikeCount() {
return this.strikeCount;
}
public int getBallCount() {
return this.ballCount;
}
}
}