quarkov profile - python coding challenges

quarkov

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Alex Mahotin

Last seen 16 hours ago

Member for 6 years, 1 month, 8 days

Difficulty Normal

Engineer (3D modelling, 3D printing).

Sept. 23, 2022, 2:10 p.m.	+ 1	for Programmers use new missions against AI
Aug. 22, 2022, 4:01 p.m.	+ 1	for CheckiO Intro. Full Version. From Basic to Advance usage.
June 5, 2022, 6:29 a.m.	+ 1	for Comment H0r4c3: Great solution, clear explanations!
April 5, 2022, 7:33 p.m.	+ 1	for Comment Phil15: To be clear, "reconnect" only meant "proof of life" to me, a month of absence had me worried. Educat...
Oct. 20, 2021, 2:36 p.m.	+ 1	for Three Important Updates
Sept. 3, 2021, 5:02 a.m.	+ 1	for Comment Oleg_Levonjuk: Lol, clever, why waste your time, if there is sympy. I solved this in much the same way. 8-) +5
July 21, 2021, 8:53 a.m.	+ 1	for Tags, Search, Points and Plans
Feb. 26, 2021, 1:48 p.m.	+ 1	for 📛 How CheckiO is growing
Feb. 26, 2021, 1:48 p.m.	+ 1	for Comment kurosawa4434: Wow ... I am very surprised and very proud of the addition of the badges :-D Thank you so much ! One...
Jan. 9, 2021, 6:49 a.m.	+ 1	for Comment juestr: First I thought this would be just another DP problem, but then I easily constructed a counter examp...
Dec. 17, 2020, 6:36 a.m.	+ 1	for Comment Phil15: I'm gonna try to explain the mission with other words. You have a rectangle and a list of circles, a...
July 29, 2020, 6:11 p.m.	+ 1	for Comment joseke: While I do not fully understand the logic, anyone can clearly see how elegant this solution is. I pa...
July 19, 2020, 6:57 a.m.	+ 1	for Comment Phil15: About _slow_, look my solution in speedy category if you're _curious_.
July 19, 2020, 6:35 a.m.	+ 1	for Solutions Index
June 26, 2020, 4:38 a.m.	+ 1	for Comment cl0ne: I don't get why in extra test #5 (`[1200, 2000, 400], [0, 0, -600, -200]`) after first collision vel...
April 2, 2020, 12:23 p.m.	+ 1	for Comment undead2k: Sorry for reviving an old thread, just trying to understand what is going on with first_word_2 e...
March 29, 2020, 7:46 a.m.	+ 1	for Comment adogadkin: 1. They surely do, never said they don't :) 2. set(iterable) (or comprehension in this case) takes O...
March 28, 2020, 6:53 p.m.	+ 1	for Comment NickJepson: Excellent simple solution - one liners are best for efficiency but watch for clarity
March 23, 2020, 6:29 a.m.	+ 1	for Comment tom-tom_f993b3abc4814d4cb5476e: I've noticed that ;) Do you mean "selected blog pages only, by design"?
March 23, 2020, 6:28 a.m.	+ 1	for Post Outdated Blog page
March 19, 2020, 12:16 p.m.	+ 1	for Post Either the description or the tests are wrong
March 8, 2020, 11:09 a.m.	+ 1	for Post bad task description
March 6, 2020, 11:16 a.m.	+ 1	for Task Count Chains
March 3, 2020, 12:04 p.m.	+ 1	for Task Fused Cubes
March 2, 2020, 2:22 p.m.	+ 1	for Comment tom-tom_f993b3abc4814d4cb5476e: In math it's True (see [Vacuous truth](https://en.wikipedia.org/wiki/Vacuous_truth)). So, every char...
March 2, 2020, 6:35 a.m.	+ 1	for Comment Phil15: Simple enough but I enjoyed it, much more than the two basic missions you published earlier today. N...
March 2, 2020, 6:33 a.m.	+ 1	for Comment przemyslaw.daniel: >>> backward_string_by_word(' abc 123') 'cba 321 '
Feb. 28, 2020, 3:30 p.m.	+ 1	for Mission Search
Feb. 14, 2020, 5:50 p.m.	+ 1	for Task Similar Triangles
Feb. 13, 2020, 5:14 p.m.	+ 1	for Task Reversed Permutation Index
Feb. 13, 2020, 9:02 a.m.	+ 1	for Task Permutation Index
Jan. 6, 2020, 3:32 p.m.	+ 4	for Gauss circle problem-Dr.Smart
Dec. 29, 2019, 7:14 a.m.	+ 3	for First-maxnrg
Dec. 22, 2019, 9:24 a.m.	+ 1	for Post New Mission "River Crossing"
Dec. 13, 2019, 7:15 a.m.	+ 1	for This week’s mission: Magic with 5 cards
Dec. 12, 2019, 7:05 p.m.	+ 1	for Task Magic with 5 cards
Dec. 10, 2019, 7:38 a.m.	+ 1	for Task On the same path
Dec. 5, 2019, 3:14 p.m.	+ 1	for Comment tom-tom_f993b3abc4814d4cb5476e: Depending on the circumstances, these graphs can be considered the same: A A / \ / \ / \ / \ B C C B...
Dec. 3, 2019, 12:49 p.m.	+ 1	for Comment kurosawa4434: Thanks ! This is the awesome mission. I can't solve it with my math :-D
Dec. 3, 2019, 11:25 a.m.	+ 1	for Post So happy, thank you so much
Dec. 3, 2019, 11:01 a.m.	+ 1	for Comment kurosawa4434: To @quarkov I improved the above visualization. And send pull-request.
Dec. 3, 2019, 7:03 a.m.	+ 1	for Post two same extra tests
Dec. 1, 2019, 4:33 p.m.	+ 1	for Comment veky: Well, I'm just trying to show people that Python lists and dicts are not really arrays and hash-tabl...
Dec. 1, 2019, 4:31 p.m.	+ 1	for Comment tom-tom_f993b3abc4814d4cb5476e: Hi! Good mission! I guess the example pictures have inaccuracies:
Nov. 30, 2019, 5:25 p.m.	+ 1	for Comment veky: a = [] a.append(a) is this a tree? Why not? :-)
Nov. 30, 2019, 8:14 a.m.	+ 1	for Comment Sim0000: Thanks for nice mission. I found some mistake in initial code. There are some tuples in 6th example....
Nov. 30, 2019, 7:37 a.m.	+ 1	for Comment kurosawa4434: Hi @oduvan @quarkov I added the mission icon files Please check it. https://github.com/kurosawa4434/...
Nov. 29, 2019, 7:39 p.m.	+ 1	for This week’s missions: Searchlights and Inscribe a Contour
Nov. 29, 2019, 7:33 p.m.	+ 1	for Task Landing Site
Nov. 29, 2019, 1:43 p.m.	+ 1	for Comment Phil15: You're welcome @kurosawa4434 Yeah it's pretty basic but my puzzle challenges are quite hard: only a ...
Nov. 29, 2019, 7:35 a.m.	+ 1	for Post New Mission "Magic with 5 cards"
Nov. 25, 2019, 8:20 p.m.	+ 1	for Comment kurosawa4434: one more test: { "input": [[[0, 0], [12, 77], [24, 149], [36, 212], [48, 259], [60, 289], [72, 300],...
Nov. 25, 2019, 8:14 a.m.	+ 1	for Comment tom-tom_f993b3abc4814d4cb5476e: Well, it can be: * list of lists * special element as a contour separator * initial point as the con...
Nov. 25, 2019, 8:14 a.m.	+ 1	for Comment tom-tom_f993b3abc4814d4cb5476e: Initial data describe a self-intersecting polygon: `[(2, 3), (3, 8), (8, 7), (9, 2), (3, 2), (4, 4),...
Nov. 24, 2019, 2:43 p.m.	+ 1	for Comment kurosawa4434: I noticed the following mission description. `All given coordinates are integers.` But random tests ...
Nov. 24, 2019, 10:15 a.m.	+ 1	for Task Searchlights
Nov. 24, 2019, 7:35 a.m.	+ 1	for Comment kurosawa4434: I tried to modify the design to display coordinates for only four corners. * Black: if existing poin...
Nov. 24, 2019, 7:35 a.m.	+ 1	for Comment kurosawa4434: I sent a pull-request for the above improvements.
Nov. 24, 2019, 7:34 a.m.	+ 1	for Comment kurosawa4434: My visualization code expects a list of four coordinates for each 'explanation' in TESTS. (Clockwise...
Nov. 23, 2019, 8:49 p.m.	+ 1	for Comment Phil15: @quarkov Great, remains the PR to be merged.
Nov. 23, 2019, 8:38 a.m.	+ 1	for Comment Phil15: To be honest, I did not read the task description entirely. Maybe I was scared by the big text just ...
Nov. 23, 2019, 8:37 a.m.	+ 1	for Comment kurosawa4434: I have almost completed the visualization code. Does the specification of the input value change? I ...
Nov. 23, 2019, 5:55 a.m.	+ 1	for Comment Phil15: I think it describe a hole in it.
Nov. 22, 2019, 12:49 p.m.	+ 1	for Comment Phil15: Interesting mission! I thought I did it wrong but I have 11600.503 too, which is better than 11900.0...
Nov. 22, 2019, 9:45 a.m.	+ 1	for Comment kurosawa4434: Thanks :) But 'NoExecFunction' And my answer is: Extra 2: 11600.503 Extra 3: 27.000 Others passed. W...
Nov. 22, 2019, 7:14 a.m.	+ 1	for Comment kurosawa4434: I found the 'Check's WORDS defined as a set. https://github.com/CheckiO-Missions/checkio-mission-cro...
Nov. 22, 2019, 5:46 a.m.	+ 1	for Comment kurosawa4434: Hi @quarkov Thank you for the new mission :) Maybe you forgot to sync? And the following is a typo (...
Nov. 14, 2019, 11:02 a.m.	+ 1	for Comment PythonWithPI: Is there a way I can find the next mission in a series? Looking around all the islands isn't very ef...
Nov. 14, 2019, 11:02 a.m.	+ 1	for Comment Tinus_Trotyl: Hi, if you make a serie of missions which have to be solved in a particular order, I think it will b...
Nov. 12, 2019, 7:59 p.m.	+ 1	for Comment kurosawa4434: @quarkov I send a pull-request for animation. Please check it.
Nov. 12, 2019, 3:27 p.m.	+ 1	for Comment veky: That just means it needs more tests, not that it should return some not-quite-relevant info. I love ...
Nov. 11, 2019, 7:02 p.m.	+ 1	for Comment kurosawa4434: Thank you for a very interesting mission :-) Fortunately my redundant solution passed the check. I w...
Nov. 11, 2019, 3:05 p.m.	+ 1	for Comment veky: It would be a much more interesting task if the fly _didn't_ lose energy in collisions. }:‑)
Sept. 19, 2019, 6:33 a.m.	+ 1	for Comment nakanohito_piyo: Great, it is really easy to deal arrays with numpy.
Sept. 11, 2019, 10:01 a.m.	+ 1	for Quick one-line solution-bsquare
July 24, 2019, 6:55 p.m.	+ 1	for Task Delivery Drone
July 6, 2019, 4:27 a.m.	+ 1	for I like to map it, map it-veky
July 6, 2019, 4:27 a.m.	+ 1	for First-eugene100372
July 6, 2019, 4:26 a.m.	+ 1	for zip_longest-tom-tom_f993b3abc4814d4cb5476e
June 24, 2019, 4 p.m.	+ 1	for Task YAML. More Types
June 24, 2019, 4 p.m.	+ 1	for Task YAML. Simple Dict
June 14, 2019, 5:38 a.m.	+ 1	for Comment veky: The link isn't necessarily for you. :-)
June 13, 2019, 4:14 a.m.	+ 1	for Comment veky: Obligatory Youtube link: https://www.youtube.com/watch?v=o9pEzgHorH0 :-)
June 10, 2019, 7:04 a.m.	+ 1	for Comment rodka81: You can find an explanation here: http://mathworld.wolfram.com/Dice.html
June 9, 2019, 11:43 a.m.	+ 1	for Post Series of YAML missions
June 9, 2019, 9:10 a.m.	+ 1	for Comment oduvan: fixed, sorry for missing a post. It is in random review now and leaderboard will be opened in 2 days
June 8, 2019, 12:55 p.m.	+ 1	for Comment Tical_1000: Beautiful. I haven’t seen the filter function used for quite some time. Very nice implementation.
May 14, 2019, 8:39 a.m.	+ 1	for Comment kurosawa4434: nice mission :-) I think that visualization is effective for this mission. Please check pull-request...
April 25, 2019, 2:15 p.m.	+ 1	for Comment Oksana_Antropova: Yeah, that's true too! I just did it so, because, while solving, I thought how to find where exactly...
April 25, 2019, 11:16 a.m.	+ 1	for Comment Phil15: Yes it's your code # This works response = text_formatting(a, 38, 'l') assert response == answer # T...
April 24, 2019, 6:54 p.m.	+ 1	for Post New Mission "Text Formatting"
April 24, 2019, 7:06 a.m.	+ 1	for Comment przemyslaw.daniel: I've just come across a problem with comparing two json files. It seems to be a good idea for a miss...
April 24, 2019, 5:32 a.m.	+ 1	for Comment Ilis: But this two from one station.
April 24, 2019, 4:18 a.m.	+ 1	for Using non-recursive GCD-Oksana_Antropova
April 23, 2019, 4:17 p.m.	+ 1	for Comment przemyslaw.daniel: It is O(n). Obviously it's slower due to fact it uses recurrence. For fast solution we have speedy c...
April 23, 2019, 3:43 p.m.	+ 1	for Task Text Formatting
April 23, 2019, 3:40 p.m.	+ 3	for Cleaner version using sets-cglacet
April 23, 2019, 1:18 p.m.	+ 1	for Inspired by pushdown automaton, O(n) -Oksana_Antropova
April 23, 2019, 1:17 p.m.	+ 1	for Comment Oksana_Antropova: That's a really cool solution! Mine had the same logic behind, but is implemented with simple `for`,...
April 23, 2019, 12:35 p.m.	+ 1	for works for arbitrary nested structure (ie, non-recursive)-cglacet

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