Activity for trichoplax
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #287033 |
Post edited: Add torn afterthought |
— | over 2 years ago |
| Edit | Post #287033 |
Post edited: Fix inaccurate search behaviour description |
— | over 2 years ago |
| Edit | Post #287033 |
Post edited: Mention cannot add "finalized" tag if there are already 5 tags |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Add finalized tag, edit title, link to posted challenge |
— | over 2 years ago |
| Edit | Post #287035 | Initial revision | — | over 2 years ago |
| Question | — |
Presumptuous base conversion Take an input string representing a number and convert it to decimal (base 10). However, the base of the input is not specified. Assume the input is in the smallest base for which its digits are valid. Input - The input consists only of characters from 0123456789ABCDEF where A to F represent the ... (more) |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Remove ambiguity from opening sentence |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Slight wording improvement |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Avoid confusion as N is not a valid digit |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Remove one more "assumed" |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Rephrase the output section to avoid the word "assume" |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Clarify output section on leading zeroes |
— | over 2 years ago |
| Comment | Post #286989 |
Illustration of the example:
```
11111000
12221000
12321110
12222210
11123210
00122210
00111110
00000000
```
I suspect this was not intended to be a valid output but it would be good to have it made explicit either way. (more) |
— | over 2 years ago |
| Comment | Post #286989 |
From "You can choose which one takes priority." I assume that for 2 overlapping beacons there are only 2 potential solutions.
That is, one beacon must be chosen to entirely overwrite the other everywhere that they overlap.
In case anyone has a different interpretation, such as giving priority t... (more) |
— | over 2 years ago |
| Edit | Post #287033 |
Post edited: Clearer subheadings |
— | over 2 years ago |
| Edit | Post #287033 | Initial revision | — | over 2 years ago |
| Answer | — |
A: Filtering the sandbox for ease of feedback Both tags and [FINALIZED] are problematic Problem with tags Having been shown the related meta post [Separate the tags away from the Sandbox or delete the \[finalized\] tag] I can now see that having tags in the Sandbox that are not tags for Challenges is problematic. It's clear from that post that... (more) |
— | over 2 years ago |
| Comment | Post #287026 |
That meta post does provide a good motivation for avoiding both "finalized" and "cancelled" tags. I'm less comfortable with "[FINALIZED]" or "[CANCELLED]" in the title - that requires searching each time I want to see posts that need feedback, rather than just setting a permanent filter on sandbox po... (more) |
— | over 2 years ago |
| Edit | Post #287005 |
Post edited: Add diagram and extra wording for clarity |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Add a unary test case |
— | over 2 years ago |
| Edit | Post #287005 |
Post edited: Improve wording and add a larger truthy test case |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Clarify output section |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Improve example calculation |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Fix incorrect test cases |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Split specification into input and output sections |
— | over 2 years ago |
| Comment | Post #287005 |
Good point.
Although this is mentioned in the opening paragraph and there are the test cases you mention, I agree it would be better for the output section to also be explicit about this, so I've added a couple more bullet points. (more) |
— | over 2 years ago |
| Comment | Post #287005 |
Thanks for all the feedback!
I'll wait to see if there are any other opinions for or against before making a final decision on allowing empty input.
I've edited to allow the input formats you listed, added an upper limit on input size, included your extra test case, and specified that the input... (more) |
— | over 2 years ago |
| Edit | Post #287005 |
Post edited: Narrow down sandbox questions to those that still need feedback |
— | over 2 years ago |
| Edit | Post #287005 |
Post edited: Address feedback |
— | over 2 years ago |
| Edit | Post #287005 |
Post edited: Specify 8 by 8 chequer board in the output section |
— | over 2 years ago |
| Edit | Post #287026 | Initial revision | — | over 2 years ago |
| Answer | — |
A: Filtering the sandbox for ease of feedback I'm leaving this answer here for any votes and discussion, but I no longer hold this opinion. I've posted a [longer answer] to explain why I've changed my mind After hearing about the filter developments currently being worked on, mentioned in [Monica's comment], my personal opinion is that ta... (more) |
— | over 2 years ago |
| Edit | Post #287008 |
Post edited: Number the list of specifications to make answering queries clearer |
— | over 2 years ago |
| Edit | Post #287012 |
Post edited: Include sort by age in the link to search results |
— | over 2 years ago |
| Edit | Post #287012 | Initial revision | — | over 2 years ago |
| Question | — |
Filtering the sandbox for ease of feedback I see the Sandbox as a vital part of challenge design. When I visit the Sandbox I'd like to be able to show only proposals that are not finalized, so I can focus feedback where it is needed. In the absence of dedicated functionality, I can search for [sandbox posts without the "finalized" tag]. ... (more) |
— | over 2 years ago |
| Comment | Post #286603 |
I agree it's impractical to make exceptions for some characters, as they will differ between languages. Instead, the scoring mechanism could be used to allow arbitrary exceptions at a cost.
For example, the score could be 1 point for each unique character, with any non-unique characters scoring 0.... (more) |
— | over 2 years ago |
| Edit | Post #287008 | Initial revision | — | over 2 years ago |
| Article | — |
Presumptuous base conversion [FINALIZED] Now posted: Presumptuous base conversion Take an input string representing a number and convert it to decimal (base 10). However, the base of the input is not specified. Assume the input is in the smallest base for which its digits are valid. Input - The input consists only of characters f... (more) |
— | over 2 years ago |
| Edit | Post #287005 |
Post edited: |
— | over 2 years ago |
| Edit | Post #287005 |
Post edited: |
— | over 2 years ago |
| Edit | Post #287005 | Initial revision | — | over 2 years ago |
| Article | — |
Chequer checker [FINALIZED] Now posted: Chequer checker A chequer board (also spelt "checker board" in some places) is an 8 by 8 grid of squares alternating between 2 colours. Check whether a provided pattern could be a region of a chequer board. The colours in the pattern will be represented by letters of the alphabe... (more) |
— | over 2 years ago |
| Comment | Post #279770 |
Until I read as far as the notes section, I had assumed that each answer would have to deal with any sufficient subset of the possible inputs (rather than being written to handle one specific sufficient subset). That sounded like an interesting challenge but might have made input format tricky. The n... (more) |
— | about 4 years ago |
| Comment | Post #279722 |
Rather than depend only on an external link, could the rules also be defined in the challenge wording so it's self contained and consistent in the event of any changes to external sites? (more) |
— | about 4 years ago |
| Comment | Post #279883 |
"The input can be assumed to be correct and containing no duplicates". Does "correct" here mean anything more than "contains exacty 7 digits"? If not, this might be clearer as "The input can be assumed to be exactly 7 distinct digits" (so that the reader does not need to look around to confirm what "... (more) |
— | about 4 years ago |
| Comment | Post #279883 |
The challenge already appears to contain all of the information required, but if you wanted to make it extra clear you could include something like "Valid examples (output a Tannenbaum tree)" and "Invalid examples (no output)" so it's clear that the "Invalid examples" are still valid inputs that the ... (more) |
— | about 4 years ago |