RogerBW's Blog

Perl Weekly Challenge 101: Spiral Origin 24 February 2021

I’ve been doing the Perl Weekly Challenges. The latest involved packing an array and a standard geometry problem. (Note that this is open until 28 February 2021.)

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Perl Weekly Challenge 100: Time Triangle 18 February 2021

I’ve been doing the Perl Weekly Challenges. The latest involved converting time formats and more tree traversal. (Note that this is open until 21 February 2021.)

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Perl Weekly Challenge 99: Unique Match 10 February 2021 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved globbing and building sub-sequences. (Note that this is open until 14 February 2021.)

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Perl Weekly Challenge 98: Insert N 05 February 2021

I’ve been doing the Perl Weekly Challenges. The latest involved reading tiny chunks from a file and searching a list. (Note that this is open until 7 February 2021.)

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Perl Weekly Challenge 97: Caesar Substrings 27 January 2021

I’ve been doing the Perl Weekly Challenges. The latest involved implementing the Caesar cipher and breaking up binary strings. (Note that this is open until 31 January 2021.)

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Perl Weekly Challenge 96: Reverse Distance 22 January 2021

I’ve been doing the Perl Weekly Challenges. The latest involved reversing words in a string and calculating Levenshtein distance. (Note that this is open until 24 January 2021.)

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Perl Weekly Challenge 95: Palindrome Stack 14 January 2021 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved testing for palindromic numbers and building a stack class. (Note that this is open until 17 January 2021.)

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Perl Weekly Challenge 94: Binary Anagrams 05 January 2021 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved grouping anagrams and more furkling with binary trees. (Note that this is open until 10 January 2021.)

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Perl Weekly Challenge 93: Max Path 30 December 2020

I’ve been doing the Perl Weekly Challenges. The latest involved colinear points and binary tree sums. (Note that this is open until 3 January 2021.)

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Perl Weekly Challenge 92: Isomorphic Interval 25 December 2020

I’ve been doing the Perl Weekly Challenges. The latest involved string isomorphism and interval merging. (Note that this is open until 27 December 2020.)

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Perl Weekly Challenge 91: Number Jump 18 December 2020

I’ve been doing the Perl Weekly Challenges. The latest involved breaking down numbers and following sequences. (Note that this is open until 20 December 2020.)

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Perl Weekly Challenge 90: Ethiopian DNA 10 December 2020 - 3 comments

I’ve been doing the Perl Weekly Challenges. The latest involved base sequences and a binary multiplication system. (Note that this is open until 13 December 2020.)

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Perl Weekly Challenge 89: magic sum 05 December 2020

I’ve been doing the Perl Weekly Challenges. The latest involved GCDs and magic squares. (Note that this is open until 6 December 2020.)

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Perl Weekly Challenge 88: Spiral Product 28 November 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved multiplications and spirals. (Note that this is open until 29 November 2020.)

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Perl Weekly Challenge 87: Consecutive Rectangles 19 November 2020

I’ve been doing the Perl Weekly Challenges. The latest involved list searches and matrices. (Note that this is open until 22 November 2020.)

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Perl Weekly Challenge 86: Sudoku Difference 12 November 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved list searches and combinatorial explosions. (Note that this is open until 15 November 2020.)

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Perl Weekly Challenge 85: Triplet Power 05 November 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved searching combinations and integer powers. (Note that this is open until 8 November 2020.)

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Perl Weekly Challenge 84: Reverse squares 28 October 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved reversing integers and a two-dimensional search. (Note that this is open until 1 November 2020.)

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Perl Weekly Challenge 83: Length and Inversion 23 October 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved string manipulation and a numerical search. (Note that this is open until 25 October 2020.)

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Perl Weekly Challenge 82: Interleave Factors 14 October 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved common factors and string searches. (Note that this is open until 12 October 2020.)

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Perl Weekly Challenge 81: Base Frequency 07 October 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved substrings and word frequencies. (Note that this is open until 11 October 2020.)

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Perl Weekly Challenge 80: missing numbers and jealous neighbours 29 September 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved missing numbers and more ranking of neighbours. (Note that this is open until 4 October 2020.)

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Perl Weekly Challenge 79: cumulative bit count and water capacity 23 September 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved more bit counts and an innovative use of histograms.

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Perl Weekly Challenge 78: Leaders and Rotation 16 September 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved searching array values and rotating lists.

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Perl Weekly Challenge 77: Fibonacci Sum and Lonely X 09 September 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved summing Fibonacci numbers and looking through a grid for neighbours.

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Perl Weekly Challenge 76: prime sum and word search 03 September 2020 - 5 comments

I’ve been doing the Perl Weekly Challenges. The latest involved summing primes and performing a word search.

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Perl Weekly Challenge 75: coins and rectangles 27 August 2020 - 1 comment

I’ve been doing the Perl Weekly Challenges. The latest involved building set values of coins and finding rectangles in histograms.

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Perl Weekly Challenge 74: more songs about lists 23 August 2020

I’ve been doing the Perl Weekly Challenges. The latest involved finding minima in subsets of lists.

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