Dreamshire

Showing what’s behind the curtain

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Perl

This tag is associated with 33 posts

By Mike ⋅ May 28, 2009 ⋅ One comment

Using a brute force attack, can you decrypt the cipher using XOR encryption?

By Mike ⋅ May 27, 2009 ⋅ Post a comment

Find the smallest prime which, by changing the same part of the number, can form eight different primes.

By Mike ⋅ May 25, 2009 ⋅ Post a comment

Finding the nth digit of the fractional part of the irrational number.

By Mike ⋅ May 17, 2009 ⋅ Post a comment

Discover the largest product of five consecutive digits in the 1000-digit number.

By Mike ⋅ May 15, 2009 ⋅ Post a comment

Determining the kth element of the sorted radical function.

By Mike ⋅ May 13, 2009 ⋅ Post a comment

How many letters would be needed to write all the numbers in words from 1 to 1000?

By Mike ⋅ May 5, 2009 ⋅ Post a comment

Find the minimal path sum from the left column to the right column.

By Mike ⋅ April 27, 2009 ⋅ Post a comment

How many triangle words does the list of common English words contain?

By Mike ⋅ April 23, 2009 ⋅ Post a comment

Find the sum of all eleven primes that are both truncatable from left to right and right to left.

By Mike ⋅ April 20, 2009 ⋅ Post a comment

Squarefree Binomial Coefficients