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  1. class Kaijou {
  2.   public static void main(String[] args) {
  3.     for (long i = 0L; i <= 20L; i++) {
  4.       System.out.println(i + "の階乗は" + kaijou(i));
  5.     }
  6.   }
  7.   public static long kaijou(long num) {
  8.     if (num == 0L) { return 1L; }
  9.     if (num >= 1L) {
  10.       return ( num * kaijou(num - 1L) );
  11.     }
  12.     return 0L;
  13.   }
  14. }
Success #stdin #stdout 0.09s 27544KB
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Standard input is empty
stdout
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0の階乗は1
1の階乗は1
2の階乗は2
3の階乗は6
4の階乗は24
5の階乗は120
6の階乗は720
7の階乗は5040
8の階乗は40320
9の階乗は362880
10の階乗は3628800
11の階乗は39916800
12の階乗は479001600
13の階乗は6227020800
14の階乗は87178291200
15の階乗は1307674368000
16の階乗は20922789888000
17の階乗は355687428096000
18の階乗は6402373705728000
19の階乗は121645100408832000
20の階乗は2432902008176640000
https://ideone.com/b0qM75
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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