1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
// $Id: random.java,v 1.2 2004-08-14 08:19:19 bfulgham Exp $
// http://shootout.alioth.debian.org/
//
// Brent Fulgham: Changed to use 32-bit integers (like the C
// version), based on a suggestion by Yonik Seeley.
import java.text.*;
public class random {
public static final int IM = 139968;
public static final int IA = 3877;
public static final int IC = 29573;
public static void main(String args[]) {
int N = Integer.parseInt(args[0]) - 1;
NumberFormat nf = NumberFormat.getInstance();
nf.setMaximumFractionDigits(9);
nf.setMinimumFractionDigits(9);
nf.setGroupingUsed(false);
while (N-- > 0) {
gen_random(100);
}
System.out.println(nf.format(gen_random(100)));
}
public static int last = 42;
public static double gen_random(double max) {
return( max * (last = (last * IA + IC) % IM) / IM );
}
}
|
