Two different seeds producing the same "random" sequence
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by
Ruud Lenders
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Published on 2012-11-13T16:16:55Z
Indexed on
2012/11/13
17:01 UTC
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Maybe there is a very logic explanation for this, but I just can't seem to understand why the seeds 0
and 2,147,483,647
produce the same "random" sequence, using .NET's Random Class (System).
Quick code example:
ushort len = 8;
Random r0 = new Random(0), r1 = new Random(1), r2 = new Random(int.MaxValue); //2,147,483,647
byte[] b0 = new byte[len], b1 = new byte[len], b2 = new byte[len];
r0.NextBytes(b0);
r1.NextBytes(b1);
r2.NextBytes(b2);
for (int i = 0; i < len; i++)
{
System.Diagnostics.Debug.WriteLine("{0}\t\t{1}\t\t{2}", b0[i], b1[i], b2[i]);
}
Console.ReadLine();
Output:
26 70 26
12 208 12
70 134 76
111 130 111
93 64 93
117 151 115
228 228 228
216 163 216
As you can see, the first and the third sequence are the same. Can someone please explain this to me?
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