~cpp
package RandomWalk;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
public class RandomWalk {
private int board[][];
private String schedule;
private int curX, curY;
private int size;
private int dirX[] = {0,1,1,1,0,-1,-1,-1};
private int dirY[] = {-1,-1,0,1,1,1,0,-1};
public RandomWalk() {
walk();
result();
}
private void walk() {
readData();
goWithScheduledDirection();
}
private void goWithScheduledDirection() {
// 시작위치
++board[curX][curY];
// 스케쥴된 방향에 따라 이동..
for(int i=0; i<schedule.length(); ++i) {
char c = schedule.charAt(i);
if( c == '9' )
return;
int idx = (int)(c - '0');
curX += dirX[idx];
if( curX<0 ) curX = size-1; // warp
else if( curX >= size ) curX = 0; // warp
curY += dirY[idx];
if( curY<0 ) curY = size-1; // warp
else if( curY >= size ) curY = 0; //warp
++board[curX][curY];
}
}
private void readData() {
try {
DataInputStream din
= new DataInputStream(new FileInputStream(new File("input2.txt")));
size = Integer.parseInt(din.readLine());
board = new int[size][size];
// 시작위치
String pos = din.readLine();
String startPoint[] = pos.split(" ");
curX = Integer.parseInt(startPoint[0]);
curY = Integer.parseInt(startPoint[1]);
emptyBoard();
schedule = din.readLine();
} catch (IOException e) {
e.printStackTrace();
}
}
private void emptyBoard() {
for(int i=0; i<size; ++i) {
for(int j=0; j<size; ++j) {
board[i][j] = 0;
}
}
}
private void result() {
for(int i=0; i<size; ++i) {
for(int j=0; j<size; ++j ) {
System.out.print(board[j][i] + " ");
}
System.out.println();
}
}
public static void main(String[] args) {
new RandomWalk();
}
}