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13 replies to this topic

### #11 roolstar

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Posted 23 February 2008 - 04:42 PM

Roolstar .. Actually 3 should have got you 3 only! 4 bricks would be needed t make 5 patterns .. but I figure, you got the point..

Right, it seems I wrote that reply too quickly without rechecking my figures...
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### #12 grottylittlewanker

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Posted 23 February 2008 - 04:58 PM

heh, I just covered this stuff last quarter in school

I'm ashamed I didn't catch on that it was fibinocci...

the pattern problems weren't my strong suit...
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### #13 try n take me on

try n take me on

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Posted 23 February 2008 - 07:19 PM

10??????????????????????????????????????????????????
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### #14 Aatif

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Posted 26 February 2008 - 08:21 AM

The problem will become more interesting if I would say that you have to make a 40x150x10 wall using minimum number of 20x10x10 brick. What are the no. of patterns? What are the no. of patterns for general case of this?

I tried doing it for 40x150x10 wall, though I could not figure out the exact function for patterns. Basically, it seems to me, it is a convoluted function of combination of fibonacci series and combinatorics!
All I could figure for 40x100x10 wall it will have f(10) = 96 patterns (and I made them, though I might have missed a few)! Any takers for f(15)??
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