Dreamshire | Perl

Perl

This tag is associated with 33 posts

By Mike ⋅ April 19, 2009 ⋅ Post a comment

Investigating the number of ways in which coins can be separated into piles.

By Mike ⋅ April 16, 2009 ⋅ 2 comments

Find the minimal path sum from the top left to the bottom right by moving right and down.

By Mike ⋅ April 13, 2009 ⋅ 7 comments

Investigate values of n for which φ(n) is a permutation of n.

By Mike ⋅ April 12, 2009 ⋅ Post a comment

Which prime, below one-million, can be written as the sum of the most consecutive primes?

By Mike ⋅ April 12, 2009 ⋅ Post a comment

Investigate the expansion of the continued fraction for the square root of two.

By Mike ⋅ April 11, 2009 ⋅ Post a comment

How many values of C(n,r), for 1 ≤ n ≤ 100, exceed one-million?

By Mike ⋅ April 10, 2009 ⋅ One comment

Counting the number of “hollow” square laminae that can form one, two, three, … distinct arrangements.

By Mike ⋅ April 10, 2009 ⋅ Post a comment

Using up to one million tiles how many different “hollow” square laminae can be formed?

By Mike ⋅ April 10, 2009 ⋅ 2 comments

After 40755, what is the next triangle number that is also pentagonal and hexagonal?

By Mike ⋅ April 9, 2009 ⋅ Post a comment

Find the smallest positive integer, x, such that 2x, 3x, 4x, 5x, and 6x, contain the same digits in some order.