5 kyu
Compression : impossible
79 of 107PaulBlanche
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Mathematics
Puzzles
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Quite a complex kata to understand.
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I don't know if it's possible to answer this question without giving away the solution, but I'll ask it anyway: What does it mean when my attempted solution passes the fixed tests (which include tests of both mangled and guess functions), but in the complete test set, it only passes for the mangle function, not for the guess function?
In those failed test runs, my guess code seems to repeatedly draw its guess from only the first set of numbers it encounters. It then repeats the same guess for all subsequent tests. What would cause that?
BTW I am using a class to avoid using global variables.
You kind of answered your own question here. You used a class to avoid global variables, but your single instance of the class is a global variable.
The point of this kata is not to try find a clever work-around the rules, the point is to make a
manglewhich returns only a list, and aguesswhich is able to use only that list to guess the missing number. It is tricky, but very possible.Thanks for this reply. I'll keep banging away at it!
very bad description
Is this done with any 6 random numbers in that range? Can I randomly generate any 6 unique numbers and have it work?
Your solution must work for any array of any six distinct numbers in that range.
In other words, tests define the input, not you.
Wow, really nice kata! No idea if my solution is the right way of solving it, but there was lot of room to play with it :D
Python translation: https://www.codewars.com/kumite/648a4975d52f51b10106b66c?sel=648a4975d52f51b10106b66c
Instead of trying to disable globals, this translation tries to check that the result depends only on the 5 numbers. Please check vulnerability before approving.
Approved
Only from reading the comments, it is clear the 5 numbers to return should be taken from the original 6 numbers, not from the entire set of numbers in scope. The description is not clear about this.
"returns an array of 5 of those numbers" -> "those" could be interpreted both ways.
since author is no longer active, I changed the description
I love this kata! Very creative idea :D
didnt understand anything from the description
Could you please add a example, cause i dont know what you expect here
In a way, I appreciate hacks like this and this, but they should not pass the tests.
I created a fork and improved the tests to invalidate these hacks.
Please have a look and approve the fork. Thanks!
This seems resolved
Brilliant idea!
I was interested at beginning why there is that strange range
[-59, 60], but after a while I understood why.Actually beacause we can choose any number in
manglewe can even go further and make range exactly[-62, 62]in this case.This can be made to work even with a set of 725 numbers. But it's a good deal harder. Maybe one day I'll create a "Compression : impossibler" kata... :-)
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Clever problem!
"returns an array of 5 of those numbers" This means that the array has to be a subset of the original array? The only numbers you can return are 5 from the input array?
Yes, you can only return 5 numbers from the input array.
Damn it the idea is indeed really cool
Example tests have
(actual,expected)in wrong order.( Haven't checked Submit tests. )
fixed it
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hu, that's cool ! I haven't thought that returning a pair gives you more information. A follow-up could be nice.
Dammit, I can't edit a comment that has been replied to. :[
Sorry.
Well nevermind :)
You forgot to freeze
console.log.fixed it