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  1. import java.util.Scanner;
  2.  
  3. public class Main {
  4.     public static void main(String[] args) {
  5.         Scanner scanner = new Scanner(System.in);
  6.         int k = scanner.nextInt(); // Input integer k
  7.  
  8.         // Calculate the size of the checkerboard
  9.         int size = 1 << k;
  10.  
  11.         // Generate the checkerboard pattern
  12.         char[][] checkerboard = generateCheckerboard(size);
  13.  
  14.         // Print the checkerboard pattern
  15.         for (int i = 0; i < size; i++) {
  16.             for (int j = 0; j < size; j++) {
  17.                 System.out.print(checkerboard[i][j]);
  18.             }
  19.             System.out.println();
  20.         }
  21.  
  22.         scanner.close();
  23.     }
  24.  
  25.     // Function to generate the checkerboard pattern
  26.     private static char[][] generateCheckerboard(int size) {
  27.         char[][] checkerboard = new char[size][size];
  28.  
  29.         if (size == 1) {
  30.             checkerboard[0][0] = '#';
  31.             return checkerboard;
  32.         }
  33.  
  34.         char[][] smallerCheckerboard = generateCheckerboard(size / 2);
  35.  
  36.         for (int i = 0; i < size; i++) {
  37.             for (int j = 0; j < size; j++) {
  38.                 char c = smallerCheckerboard[i % (size / 2)][j % (size / 2)];
  39.                 checkerboard[i][j] = c;
  40.             }
  41.         }
  42.  
  43.         return checkerboard;
  44.     }
  45. }
  46.  
Success #stdin #stdout 0.17s 54820KB
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https://ideone.com/5R7d5c
language:
Java (HotSpot 12)
created:
30 days ago
visibility:
public

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