Fraktaali

import java.util.*;
 
class fraktaali
{
 static int in;
 static int len = 1;
 public static void main (String[] args) throws java.lang.Exception
 {
  StringBuilder[] fractal = new StringBuilder[512];
  Scanner scanner = new Scanner(System.in);
  in = scanner.nextInt();
  for(int i = 0; i < 512; i++) {
   fractal[i] = new StringBuilder(" ");
  }
  fractal[0].setCharAt(0, '#');
  for(int i = 2; in != 1 && i <= in; i++) {
   String[] transfer = new String [len];
   for(int j = 0; j < len; j++) {
    transfer[j] = fractal[j].substring(0, len);
    fractal[j].insert(len, transfer[j]);
   }
   for(int j = len; j < 2*len; j++) {
    fractal[j].insert(0, transfer[j-len]);
   }
   for(int j = 0; j < len; j++){
    transfer[j] = transfer[j].replace('#','b');
    transfer[j] = transfer[j].replace('.','#');
    transfer[j] = transfer[j].replace('b','.');
   }
   for(int j = len; j < 2*len; j++) {
    fractal[j].insert(len, transfer[j-len]);
   }
   len = (int)Math.pow(2, i-1);
  }
  StringBuilder result = new StringBuilder("");
  for(int i = 0; i < len - 1; i++) {
   result.append(fractal[i].substring(0,len));
   result.append('\n');
  }
  result.append(fractal[len-1].substring(0,len));
  System.out.println(result.toString());
 }
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: ACCEPTED

Test 4

Group: 4

Verdict: ACCEPTED

Test 5

Group: 5

Verdict: ACCEPTED

Test 6

Group: 6

Verdict: ACCEPTED

Test 7

Group: 7

Verdict: ACCEPTED

Test 8

Group: 8

Verdict: ACCEPTED

Test 9

Group: 9

Verdict: ACCEPTED

Test 10

Group: 10

Verdict: ACCEPTED