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Topic: 2 digit radars do I have all the numbers?  (Read 8757 times)
Archey80
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2 digit radars do I have all the numbers?
« on: November 29, 2006, 01:31:14 pm »
Hey all I am trying to find out all the possibilities for 2 digit radars with the numbers 0's and 5's I need some help to make sure I have them all I am sure I am missing many any help is welcome. Thanks Arthur

0005000
0050500
0500050
5000005
0555550
0550550
5550555
5050505
5005005
0505050
5500055
5505055
0055500
5055505

Thanks  YuMan, Mikeysonfire
« Last Edit: November 29, 2006, 02:42:21 pm by Archey80 »
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YuMan
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Re: 2 digit radars do I have all the numbers?
« Reply #1 on: November 29, 2006, 01:54:35 pm »
Arthur:
0055500
5055500

I believe the 3rd line should be 0500050

Any others???

Yuman
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Yuman
Mikeysonfire
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Re: 2 digit radars do I have all the numbers?
« Reply #2 on: November 29, 2006, 02:40:58 pm »
You need 5055505.  ;)
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BWJM
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Re: 2 digit radars do I have all the numbers?
« Reply #3 on: November 29, 2006, 03:22:24 pm »
That's all of them.
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BWJM, F.O.N.A.
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Archey80
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Re: 2 digit radars do I have all the numbers?
« Reply #4 on: November 29, 2006, 03:37:53 pm »
Thanks All now the hard part finding them all. :-?


Arthur
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Mikeysonfire
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Re: 2 digit radars do I have all the numbers?
« Reply #5 on: November 29, 2006, 04:05:07 pm »
I will keep my eyes open for you.  8-)
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Seth
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Re: 2 digit radars do I have all the numbers?
« Reply #6 on: November 29, 2006, 09:35:23 pm »
Glad you figured it out, but the easiest way is to just consider the last three numbers and sort them from lowest to highest:

000
005
050
055
500
505
550
555

That's eight.  From there it's easy to construct the "general case" radar:

000x000
500x005
050x050
550x055
005x500
505x505
055x550
555x555

Just replace the x with either zero or five, and you have sixteen possibilities.  Then subtract the 0000000 and 5555555 note and you have fourteen left.  :)
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