On Jun 23, 2006, at 12:30 PM, Matthew Smillie wrote:
> On Jun 23, 2006, at 17:20, Cliff Cyphers wrote:
>> On Sat, Jun 24, 2006 at 12:45:21AM +0900, darren kirby wrote:
>>> quoth the Alexandru E. Ungur
>>>>
>>>> question:
>>>>
>>>>     Does this triangle:
>>>>                                1
>>>>                             1     1
>>>>                          1     2     1
>>>>                       1     3     3     1
>>>>                    1     4     6     4     1
>>>>                1     5     10     10     5     1
>>>>            1     6     15     20     15     6     1
>>>>         1     7     21     35     35     21     7     1
>>>>     1     8     28     56     70     56     28     8     1
>>>> 1     9     36     84     126     126     84     36     9     1
>>>>
>>>> conform with the 'proper triangle' definition?
>>>
>>> Wikipedia* says: "a polygon with three vertices and three sides  
>>> which are
>>> straight line segments"  so I guess the above is a 'proper'  
>>> triangle by
>>> anyone's definition.
>>>
>>
>> Look at the last row.  It looks off.  Seems that the 1's on the  
>> outer ends
>> are off by a space so that it's not a straight line.  But I'm sure  
>> we all get
>> the point.
>
> It's not the last row, but each row where the length of the longest  
> entry changes - row 5 is off as well.
>
> What's the policy on hints before the waiting period is up?
>
> matthew smillie.

Anyone have any critique on this one?

                             1
                          1     1
                       1     2     1
                    1     3     3     1
                 1     4     6     4     1
              1     5    10    10     5     1
           1     6    15    20    15     6     1
        1     7    21    35    35    21     7     1
     1     8    28    56    70    56    28     8     1
1     9    36    84    126   126   84    36     9     1

-Mat