import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; import java.util.StringTokenizer; public class Main { static CogWheel[] cogWheels; static int K; static List commands = new ArrayList<>(); static StringTokenizer stringTokenizer; static BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in)); public static void main(String[] args) throws IOException { initialize(); System.out.println(solve()); } private static int solve() { for(int[] command : commands){ int wheelNum = command[0]; int dir = command[1]; processWheel(wheelNum, dir, new boolean[4]); } int answer = 0; for(int i = 0; i < 4; i++){ if(cogWheels[i].status[0] == 1){ answer += (int) Math.pow(2,i); } } return answer; } private static void processWheel(int wheelNum, int dir, boolean[] isTurned) { if(wheelNum < 0 || isTurned[wheelNum] || wheelNum > 3)return; isTurned[wheelNum] = true; if (wheelNum + 1 <= 3) { int rightMatchStatus = cogWheels[wheelNum + 1].status[6]; if(rightMatchStatus != cogWheels[wheelNum].status[2]) { //맞닿아있는것이 다르다면 회전 processWheel(wheelNum + 1, (-dir), isTurned); } } if(wheelNum - 1 >= 0){ int leftMatchStatus = cogWheels[wheelNum-1].status[6]; if(leftMatchStatus != cogWheels[wheelNum].status[2]) { //맞닿아있는것이 다르다면 회전 processWheel(wheelNum - 1, (-dir), isTurned); } } //현재 톱니 회전 cogWheels[wheelNum].turn(dir); } private static void initialize() throws IOException { cogWheels = new CogWheel[4]; for(int i = 0; i < 4; i++){ String line = bufferedReader.readLine(); cogWheels[i] = new CogWheel(); for(int j = 0; j < 8; j++){ cogWheels[i].status[j] = Character.getNumericValue(line.charAt(j)); } } K = Integer.parseInt(bufferedReader.readLine()); for(int i = 0; i < K; i++){ stringTokenizer = new StringTokenizer(bufferedReader.readLine()); int num = Integer.parseInt(stringTokenizer.nextToken()); int dir = Integer.parseInt(stringTokenizer.nextToken()); commands.add(new int[]{num-1, dir}); } } } class CogWheel{ int[] status; public CogWheel() { this.status = new int[8]; } public void turn(int dir) { if(dir == 1){ int curr = status[7]; for(int i = 0; i < 7; i++){ status[i+1] = status[i]; } status[0] = curr; }else{ int curr = status[0]; for(int i = 1; i <= 7; i++){ status[i-1] = status[i]; } status[7] = curr; } } }

제출 #90191

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