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Author Topic: colcolpicle's puzzles  (Read 72678 times)
colcolpicle
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Re: colcolpicle's puzzles
« Reply #150 on: October 06, 2010, 08:53:45 PM »

compare: donynyd    imagejubenin
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Madball
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Re: colcolpicle's puzzles
« Reply #151 on: October 07, 2010, 09:16:58 AM »

For compare (donynyd): tyfahic
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Newt
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Re: colcolpicle's puzzles
« Reply #152 on: October 07, 2010, 08:47:39 PM »

For Compare (donynyd): xigyget
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Rene
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Re: colcolpicle's puzzles
« Reply #153 on: October 08, 2010, 12:21:14 PM »


For Compare (donynyd): kocagih

A simpler approach this time
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pivotdude123
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Re: colcolpicle's puzzles
« Reply #154 on: October 22, 2010, 04:24:47 PM »

for predict the crate: rusubeb

EDIT: Found out it was practically the same as Werbad's. Crap.
« Last Edit: October 22, 2010, 04:28:03 PM by pivotdude123 » Logged
colcolpicle
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Re: colcolpicle's puzzles
« Reply #155 on: October 29, 2010, 08:12:18 PM »

Here's an interesting problem I heard recently. it's not rubicon related but it is math which is kind of related.

How many numbers are there between 1000 and 10000 where each digit is at least one more than the previous digit. For clarification, the first number that has this property is 1234. Once you figure that out, can you figure out a formula for this problem between 10^n to 10^(n+1) for any n?


Cross the streams kibomef:imagegigilys
« Last Edit: October 29, 2010, 11:54:24 PM by colcolpicle » Logged

Bucky
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Re: colcolpicle's puzzles
« Reply #156 on: October 30, 2010, 03:22:18 AM »

Cross the streams kibomef:feropym.  The timing is rather tricky on this one.  The [level]half furnace draw[/level] on the left side needed to replace the traditional version because that version was 2 ticks slow no matter what I tried.

Here's an interesting problem I heard recently. it's not rubicon related but it is math which is kind of related.

How many numbers are there between 1000 and 10000 where each digit is at least one more than the previous digit. For clarification, the first number that has this property is 1234. Once you figure that out, can you figure out a formula for this problem between 10^n to 10^(n+1) for any n?

126.  Formula is imageitem n+2 in row 10 of Pascal's Triangle, or 0 if n>9  or n<-1.

Quick explanation for people with little math background:
imageThe number in each cell in Pascal's Triangle is the number of unique paths from the vertex to that point.  I have a scheme where every number with this property corresponds to exactly one path and vice versa. 

To generate the number for a path, start at the vertex with a counter at zero.  At each step in the path, increment the counter, then write a digit with the value of the counter if the step was down-right.  You will always end up with the same number of digits because you perform a constant number of rightwards steps, and you will end up with digits in increasing order because the counter only increments.

To generate the path for a number, start at the vertex with a counter at 1 and a marker before the first digit.  For each step in the path, if the next digit is equal to the counter, step down-right and move the marker one digit; otherwise step down-left.  Either way, increment the counter (and stop if the counter goes past 9).  The digit 'after' the last one is larger than 9 for this.  The path will end in the right spot because it will always have one down-right step per digit and 9 steps total (because of the counter).

The reason why it's item n+2 is that the formula given asks about n+1 digit numbers, and the first item in each row corresponds to zero-digit numbers.
 
« Last Edit: October 30, 2010, 04:42:35 AM by Bucky » Logged

That is the most ingenious method of solving an impossible puzzle that I have ever seen.
jnz
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Re: colcolpicle's puzzles
« Reply #157 on: October 30, 2010, 04:09:48 AM »

For Cross the Streams (kibomef): kalamar
If you liked that, try Rene's Italian Traffic Warden series
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Madball
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Re: colcolpicle's puzzles
« Reply #158 on: October 30, 2010, 08:51:33 AM »

For cross the streams (kibomef): lyxogov
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Werbad
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Re: colcolpicle's puzzles
« Reply #159 on: October 30, 2010, 02:14:43 PM »

For Cross the streams (kibomef): ridanub
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Rene
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Re: colcolpicle's puzzles
« Reply #160 on: October 30, 2010, 05:33:22 PM »


For Cross the Streams (kibomef): ticalez
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colcolpicle
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Re: colcolpicle's puzzles
« Reply #161 on: November 02, 2010, 03:40:52 PM »

firing squad: gufycer : imagesusyrar

firing squad easy: nideceh : imagegogigyb

firing squad real: ricyker

firing squad real easy: debacid


for the math problem I used triangular numbers and figured out that it is actually the (10-n)th n dimensional triangular number. this just happens to be equal to what bucky had done with pascal's triangle. Tongue
« Last Edit: November 02, 2010, 11:38:09 PM by colcolpicle » Logged

Rene
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Re: colcolpicle's puzzles
« Reply #162 on: November 03, 2010, 02:48:46 PM »

For Firing Squad (gufycer): gonezyt
For Firing Squad Easy (nideceh): cuxolux
For Firing Squad Real (ricyker): vytakod
For Firing Squad Real Easy (bulorot): debacid
« Last Edit: November 03, 2010, 04:51:00 PM by Rene » Logged
colcolpicle
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Re: colcolpicle's puzzles
« Reply #163 on: November 07, 2010, 12:29:53 AM »

High quality video: dexuzed
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Rene
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Re: colcolpicle's puzzles
« Reply #164 on: November 11, 2010, 09:45:53 PM »


For High Quality Video (dexuzed): mutysas

interesting puzzle
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