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  1. /*
  2. プログラミングのお題スレ Part13 
  3. //mevius.5ch.net/test/read.cgi/tech/1549160513/675
  4.  
  5. 675 名前：デフォルトの名無しさん[sage] 投稿日：2019/03/14(木) 18:59:16.90 ID:38t26SL0
  6. お題：　３つの数の最小値を１回の分岐で決めろ！
  7. */
  8. class Ideone
  9. {
  10.     public static void main(String[] args)
  11.     {
  12.         System.out.println(min(1, 2, 3));
  13.         System.out.println(min(1, 3, 2));
  14.         System.out.println(min(2, 1, 3));
  15.         System.out.println(min(2, 3, 1));
  16.         System.out.println(min(3, 1, 2));
  17.         System.out.println(min(3, 2, 1));
  18.  
  19.         System.out.println();
  20.  
  21.         System.out.println(min(Integer.MIN_VALUE, 0, Integer.MAX_VALUE));
  22.         System.out.println(min(Integer.MIN_VALUE, Integer.MAX_VALUE, 0));
  23.         System.out.println(min(0, Integer.MIN_VALUE, Integer.MAX_VALUE));
  24.         System.out.println(min(0, Integer.MAX_VALUE, Integer.MIN_VALUE));
  25.         System.out.println(min(Integer.MAX_VALUE, Integer.MIN_VALUE, 0));
  26.         System.out.println(min(Integer.MAX_VALUE, 0, Integer.MIN_VALUE));
  27.  
  28.         System.out.println();
  29.  
  30.         // あうとー
  31.         System.out.println(min_error(Integer.MIN_VALUE, 0, Integer.MAX_VALUE));
  32.         System.out.println(min_error(Integer.MIN_VALUE, Integer.MAX_VALUE, 0));
  33.         System.out.println(min_error(0, Integer.MIN_VALUE, Integer.MAX_VALUE));
  34.         System.out.println(min_error(0, Integer.MAX_VALUE, Integer.MIN_VALUE));
  35.         System.out.println(min_error(Integer.MAX_VALUE, Integer.MIN_VALUE, 0));
  36.         System.out.println(min_error(Integer.MAX_VALUE, 0, Integer.MIN_VALUE));
  37.     }
  38.  
  39.     static int min(int a, int b, int c)
  40.     {
  41.         a ^= (a ^ b) * ((long) b - a >>> 63);
  42.         a ^= (a ^ c) * ((long) c - a >>> 63);
  43.         return a;
  44.     }
  45.  
  46.     static int min_error(int a, int b, int c)
  47.     {
  48.         a ^= (a ^ b) * (b - a >>> 31);
  49.         a ^= (a ^ c) * (c - a >>> 31);
  50.         return a;
  51.     }
  52. }
Success #stdin #stdout 0.04s 2184192KB
comments (?)
stdin
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Standard input is empty
stdout
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1
1
1
1
1
1

-2147483648
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0
0
2147483647
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https://ideone.com/dAlKtw
お題スレ13の675
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
secret

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