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  1. /*
  2. プログラミングのお題スレ Part15 
  3. //mevius.5ch.net/test/read.cgi/tech/1564310397/696
  4.  
  5. 696 名前：デフォルトの名無しさん[] 投稿日：2019/10/06(日) 05:37:10.28 ID:oevqPO9x
  6. お題: L形図形を表示する
  7. [入力]
  8. 1
  9. [出力]
  10. a
  11. bc
  12.  
  13. [入力]
  14. 2
  15. [出力]
  16. ba
  17. ca
  18. abcc
  19. bcab
  20.  
  21. [入力]
  22. 3
  23. [出力]
  24. bacb
  25. cbaa
  26. acba
  27. bcca
  28. bcabcccb // 正しくはbaabcccbのはず
  29. cabcabca
  30. abccaabc
  31. bcabbcab
  32. */
  33. class Ideone
  34. {
  35.     public static void main(String[] args)
  36.     {
  37.         show(1);
  38.         show(2);
  39.         show(3);
  40.         show(4);
  41.     }
  42.  
  43.     static void show(int input)
  44.     {
  45.         if (input < 1) throw new IllegalArgumentException();
  46.         System.out.printf("[入力]%n%d%n", input);
  47.         char[][] data = { { 'a' }, { 'b', 'c' } };
  48.         while (--input > 0)
  49.         {
  50.             data = next(data);
  51.         }
  52.         System.out.printf("[出力]%n%s%n", toString(data));
  53.     }
  54.  
  55.     static char[][] next(char[][] data)
  56.     {
  57.         int l = data.length;
  58.         int h = l >> 1;
  59.         int d = l << 1;
  60.  
  61.         char[][] next = new char[l * 2][];
  62.         for (int i = 0; i < data.length; i++)
  63.         {
  64.             next[i] = new char[l];
  65.             next[i + l] = new char[l * 2];
  66.         }
  67.  
  68.         for (int y = 0; y < data.length; y++)
  69.         {
  70.             for (int x = 0; x < data[y].length; x++)
  71.             {
  72.                 next[y + h][x + h] = data[y][x];
  73.                 next[x][l - y - 1] = data[y][x];
  74.                 next[y + l][x] = data[y][x];
  75.                 next[d - x - 1][y + l] = data[y][x];
  76.             }
  77.         }
  78.         return next;
  79.     }
  80.  
  81.     static String toString(char[][] data)
  82.     {
  83.         StringBuilder sb = new StringBuilder();
  84.         for (char[] cs : data)
  85.         {
  86.             sb.append(cs);
  87.             sb.append(System.lineSeparator());
  88.         }
  89.         return sb.toString();
  90.     }
  91. }
Success #stdin #stdout 0.09s 34036KB
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stdin
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Standard input is empty
stdout
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[入力]
1
[出力]
a
bc

[入力]
2
[出力]
ba
ca
abcc
bcab

[入力]
3
[出力]
bacb
cbaa
acba
bcca
baabcccb
cabcabca
abccaabc
bcabbcab

[入力]
4
[出力]
bacbbacb
cbaaccba
acbacbac
bccbaaab
baacbacb
cabccbaa
abccacba
bcabbcca
bacbbaabcccbbacb
cbaacabcabcaccba
acbaabccaabccbac
bccabcabbcabcaab
baabcccbbaaabccb
cabcabcacabcabca
abccaabcabccaabc
bcabbcabbcabbcab
https://ideone.com/31a8Ky
プログラミングのお題スレ15の696
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
secret

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