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rawling Avatar
Name:Unknown
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Member Since:Jan 2019
Last Seen:Oct 2022
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    • Stats
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    • Conversations (19)
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    • Custom User Avatar
      • Madjosz
      • commented on "Tap Into Mr. Mxyzinjin's Matrix" kata
      • 5 years ago

      This comment saved my day!

    • Custom User Avatar
      • rawling
      • commented on "Cure Cancer" csharp solution
      • 6 years ago

      "Turn it into a string" seems like the wrong thing to do if you're trying to make code run faster. I assume it gives you a faster equality check via a nice hashcode but it still seems dumb.

    • Custom User Avatar
      • rawling
      • commented on "Filter out the geese" kata
      • 6 years ago

      Puzzle description: Note that ... some elements may be repeated.

      Actual tests: no repeated elements
      Model solution: wouldn't work with repeated elements

    • Custom User Avatar
      • rawling
      • commented on "You're a square!" csharp solution
      • 6 years ago

      ಠ_ಠ

    • Custom User Avatar
      • rawling
      • commented on "Select median" kata
      • 6 years ago

      This comment is hidden because it contains spoiler information about the solution

    • Custom User Avatar
      • rawling
      • commented on "Calculator" kata
      • 6 years ago

      It is for C#, at least. The C# translation of this kata should be on that 2kyu kata, not this 3kyu one.

    • Custom User Avatar
      • adri326
      • commented on "Tap Into Mr. Mxyzinjin's Matrix" kata
      • 6 years ago

      It took me a day to find out how to solve, and an hour to figure out that I had done the same mistake.

    • Custom User Avatar
      • Frodyne
      • commented on "Longest Common Subsequence (Performance version)" csharp solution
      • 6 years ago

      Nice. Using the same algorithm as (almost) everybody else, but finding a way to make it nicer by building the answer string as you populate the table, instead of having to backtrack afterwards.
      Of course, the downside is that you use more memory, and that it is possible that all the extra string allocations makes this slower than just using ints and backtracing in the end.

    • Custom User Avatar
      • rawling
      • resolved a question on "Tap Into Mr. Mxyzinjin's Brain" kata
      • 7 years ago

      This comment is hidden because it contains spoiler information about the solution

    • Custom User Avatar
      • rawling
      • created a question for "Tap Into Mr. Mxyzinjin's Brain" kata
      • 7 years ago

      This comment is hidden because it contains spoiler information about the solution

    • Custom User Avatar
      • rawling
      • commented on "Tap Into Mr. Mxyzinjin's Matrix" kata
      • 7 years ago

      Obviously you have to escape the ' or " in your list of possible characters, but don't do what I did and forget to escape the \ too. (facepalm)

    • Custom User Avatar
      • rawling
      • created a suggestion for "Four Pass Transport" kata
      • 7 years ago

      My JS solution is a bit of a cheat.

      It finds a non-optimal route on e.g. [95,51,56,93] or [75,71,63,92] or [34,17,24,18] but there is apparently no such situation in the fixed tests, only sometimes in the random tests.

      It fails to find a route at all on e.g. [94,90,75,92] but again this only sometimes comes up in random tests.

      Maybe these should be added to the fixed tests.

    • Custom User Avatar
      • rawling
      • commented on "Four Pass Transport" javascript solution
      • 7 years ago

      Pretty sure this doesn't work in the general case :(

    • Custom User Avatar
      • rawling
      • commented on "Regular Expression for Binary Numbers Divisible by n" kata
      • 7 years ago

      This comment is hidden because it contains spoiler information about the solution

    • Custom User Avatar
      • rawling
      • commented on "Symbolic differentiation of prefix expressions" kata
      • 7 years ago

      In my case, saying which of the two ways of differentiating tan was expected would have helped.

      TBH I'm surprised I didn't run into issues with the ordering of chain/product/quotient rules... or maybe it just didn't come up.

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