Einstein's Riddle

Erik
Erik
Joined: 14 Feb 06
Posts: 2815
Credit: 2645600
RAC: 0

Excellent work Chipper Q!

Excellent work Chipper Q! :)

Anyone else?

Rod
Rod
Joined: 3 Jan 06
Posts: 4396
Credit: 811266
RAC: 0

I am making the asumption the

I am making the asumption the exsamples in the instructions are valid exsamples...

[pre]

2 3 4 5 7 8 9
3 4 6 8 9 0
4 5 6 7 8 9 1
7 9 0 1 2
6 7 8 9 1
7 9 0 1 2 3 4
8 9 0 2 4 5
9 0 1 3 4 5 6

[/pre]

There are some who can live without wild things and some who cannot. - Aldo Leopold

Chipper Q
Chipper Q
Joined: 20 Feb 05
Posts: 1540
Credit: 708571
RAC: 0

RE: I am making the

Message 64322 in response to message 64321

Quote:

I am making the asumption the exsamples in the instructions are valid exsamples...

[pre]

2 3 4 5 7 8 9
3 4 6 8 9 0
4 5 6 7 8 9 1
7 9 0 1 2
6 7 8 9 1
7 9 0 1 2 3 4
8 9 0 2 4 5
9 0 1 3 4 5 6

[/pre]


Looks good, Rod. I think yours is solution 2 of 9 (I submitted 1 of 9), and yours looks way better - you should get bonus points for using the pre tags! :)

Erik
Erik
Joined: 14 Feb 06
Posts: 2815
Credit: 2645600
RAC: 0

Excellent work Rod Gallant!

Excellent work Rod Gallant! :) I agree with Chipper Q on your use of pre tags; I didn't know what they were about until I did some web searching (learned a couple of other tags in the process too).

Rod
Rod
Joined: 3 Jan 06
Posts: 4396
Credit: 811266
RAC: 0

RE: RE: I am making the

Message 64324 in response to message 64322

Quote:
Quote:

I am making the asumption the exsamples in the instructions are valid exsamples...

[pre]

2 3 4 5 7 8 9
3 4 6 8 9 0
4 5 6 7 8 9 1
7 9 0 1 2
6 7 8 9 1
7 9 0 1 2 3 4
8 9 0 2 4 5
9 0 1 3 4 5 6

[/pre]


Looks good, Rod. I think yours is solution 2 of 9 (I submitted 1 of 9), and yours looks way better - you should get bonus points for using the pre tags! :)

I don't all nine solutions are valid . Quickly glancing I see Solution 7 and 8 would result in number beginning with zero. There may be others

There are some who can live without wild things and some who cannot. - Aldo Leopold

Chipper Q
Chipper Q
Joined: 20 Feb 05
Posts: 1540
Credit: 708571
RAC: 0

RE: RE: RE: I am making

Message 64325 in response to message 64324

Quote:
Quote:
Quote:

I am making the asumption the exsamples in the instructions are valid exsamples...

[pre]

2 3 4 5 7 8 9
3 4 6 8 9 0
4 5 6 7 8 9 1
7 9 0 1 2
6 7 8 9 1
7 9 0 1 2 3 4
8 9 0 2 4 5
9 0 1 3 4 5 6

[/pre]


Looks good, Rod. I think yours is solution 2 of 9 (I submitted 1 of 9), and yours looks way better - you should get bonus points for using the pre tags! :)

I don't all nine solutions are valid . Quickly glancing I see Solution 7 and 8 would result in number beginning with zero. There may be others


Good observation! I, too, should be more careful... :)

Erik
Erik
Joined: 14 Feb 06
Posts: 2815
Credit: 2645600
RAC: 0

Another time killer: Find

Another time killer:

Find a positive integer (base 10) that has each of these properties:

  • *Each of the 10 digits (0 to 9) will appear only once in the number.
    *For each pair of digits whose sum is 9, the number of other digits positioned strictly between the pair is equal to the smaller digit of the pair.
    *The sum of each pair of digits positioned at the same distance from opposite ends of the number is a prime number.
    *The difference between any 2 adjacent digits is greater than 1.

Bamanlron
Bamanlron
Joined: 6 Aug 05
Posts: 1
Credit: 75105
RAC: 0

RE: Another time

Message 64327 in response to message 64326

Quote:

Another time killer:

Find a positive integer (base 10) that has each of these properties:

  • *Each of the 10 digits (0 to 9) will appear only once in the number.
    *For each pair of digits whose sum is 9, the number of other digits positioned strictly between the pair is equal to the smaller digit of the pair.
    *The sum of each pair of digits positioned at the same distance from opposite ends of the number is a prime number.
    *The difference between any 2 adjacent digits is greater than 1.

5831746290

Erik
Erik
Joined: 14 Feb 06
Posts: 2815
Credit: 2645600
RAC: 0

RE: RE: Another time

Message 64328 in response to message 64327

Quote:
Quote:

Another time killer:

Find a positive integer (base 10) that has each of these properties:

  • *Each of the 10 digits (0 to 9) will appear only once in the number.
    *For each pair of digits whose sum is 9, the number of other digits positioned strictly between the pair is equal to the smaller digit of the pair.
    *The sum of each pair of digits positioned at the same distance from opposite ends of the number is a prime number.
    *The difference between any 2 adjacent digits is greater than 1.

5831746290


Congratulations Bamanlron!

Rod
Rod
Joined: 3 Jan 06
Posts: 4396
Credit: 811266
RAC: 0

This one is killing alot of

This one is killing alot of time:)
I will give it a shot...

0 9 2 6 4 7 1 3 8 5

There are some who can live without wild things and some who cannot. - Aldo Leopold

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