bryukh profile - python coding challenges

bryukh

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Valentin Bryukhanov http://bryukh.com/

Last seen 2 years ago

Member for 11 years, 7 months, 13 days

Difficulty Normal

Developer, engineer and taskMaker.

Nov. 30, 2014, 5:54 a.m.	+ 1	for Comment chrismartin: I think you're getting an "index out of range" error because you're trying to retrieve an array elem...
Nov. 30, 2014, 5:52 a.m.	+ 1	for Comment Sim0000: At first, you need to convert text to lower case before line 2. Second, you need to sort frequencies...
Nov. 30, 2014, 5:52 a.m.	+ 1	for Comment Sim0000: In line 15, indent of 'return sum' is wrong. Current indentation means your code process only one co...
Nov. 29, 2014, 7:06 a.m.	+ 1	for Comment Sim0000: At least, there are if-else error. In line 7, if -> elif. In line 10, if -> elif.
Nov. 29, 2014, 7:05 a.m.	+ 1	for Comment DillonKo: the probmlem is that you are saying for each part return true or false. the Idea is good but you are...
Nov. 29, 2014, 7:05 a.m.	+ 1	for Comment Sim0000: You need to return the result. return result
Nov. 29, 2014, 7:05 a.m.	+ 1	for Comment Sim0000: Your code is, first check the count, then check the item. This order is a problem. In your code, the...
Nov. 29, 2014, 6:16 a.m.	+ 1	for So, I Just finished Code Academy's Python course ... what do I do next?
Nov. 23, 2014, 8:26 a.m.	+ 1	for Comment spoty: OK, the problem is with how index() is working. > list.index(x): Return the index in the list of...
Nov. 23, 2014, 5:52 a.m.	+ 1	for Comment SleepyHarry: There's a slight bug with this I believe, which occurs when the point we're testing is outside the p...
Nov. 22, 2014, 7:32 a.m.	+ 1	for Comment veky: Instead of (polygon[0],), bunny should have written polygon[:1]. Easier, less ugly (1-tuples really ...
Nov. 21, 2014, 4:21 p.m.	+ 1	for Community Reviews: The Building Missions
Nov. 20, 2014, 8:41 p.m.	+ 1	for Comment viktor.pecheniuk: the same :) return ','.join(sorted(list(set(first.split(',')).intersection(second.split(',')))))
Nov. 20, 2014, 5:39 a.m.	+ 1	for Comment alexander.chzhen: It is the perfect reason to reread "already known" documentation once again.
Nov. 19, 2014, 8:55 a.m.	+ 1	for Comment veky: Yes, if points are really needed for opening other areas, I completely understand people whose curio...
Nov. 19, 2014, 6:57 a.m.	+ 1	for Comment DillonKo: The way your code is it looks like you are searching for a median or middle number. You need to only...
Nov. 19, 2014, 6:57 a.m.	+ 1	for Comment bukebuer: Check this: def checkio(data): data.sort() if len(data)%2 == 0: median = (data[len(data)/2] + data[l...
Nov. 18, 2014, 6:03 a.m.	+ 1	for Comment Lolka_046a8a01a2de4b048779ff9f: However, most which live under "Creative" are best candidates for "Scary" :-)
Nov. 16, 2014, 9:38 a.m.	+ 1	for Post Thank you Bryukh
Nov. 16, 2014, 8:03 a.m.	+ 1	for Comment blabaster: A median is a numerical value separating the upper half of a sorted array >>> sorted([3, 1, 2, 5...
Nov. 16, 2014, 6:45 a.m.	+ 1	for Comment bunnychai: line 8-9 went wrong * should not return if ONE of the friend does not find a new friend * should ONL...
Nov. 15, 2014, 6:44 a.m.	+ 1	for Comment Sim0000: When same number appear in array twice, your code miss. Because array.index(i) returns first index. ...
Nov. 15, 2014, 6:21 a.m.	+ 1	for Comment blabaster: d.keys() and d.values() are generators, so you can't sort them. If you need sorted keys, keys = sort...
Nov. 13, 2014, 6:01 a.m.	+ 1	for Comment yoichi: In the example of connected(name): >>> f = Friends(({"a", "b"}, {"b", "c"}, {"c", "a"}) ... >>> f.re...
Nov. 12, 2014, 6 p.m.	+ 2	for HexagonSpiral (Constant Time)-bunnychai
Nov. 12, 2014, 6 p.m.	+ 3	for itertools-gyahun_dash
Nov. 12, 2014, 6 p.m.	+ 3	for First-bukebuer
Nov. 12, 2014, 5:59 p.m.	+ 1	for You Have 60,000 Friends on CheckiO!
Nov. 12, 2014, 12:39 p.m.	+ 1	for Comment veky: Well, of course I checked it out when I read your previous post. But thanks for the link anyway. :-)...
Nov. 12, 2014, 12:39 p.m.	+ 1	for Comment hanpari: There are a lot of challenge in 3d world. Do you think you can do in python retopology tool to subst...
Nov. 12, 2014, 12:39 p.m.	+ 1	for Comment veky: I think you don't realize how technical this video is, and completely nonunderstandable to someone w...
Nov. 12, 2014, 12:39 p.m.	+ 1	for Comment hanpari: Sorry, about that. I was playing with this stuff for too long. You can see this picture: http://blen...
Nov. 12, 2014, 12:39 p.m.	+ 1	for Comment veky: Ok, now I understand the problem, but of course I have no idea how to go about solving it. :-) But f...
Nov. 12, 2014, 12:39 p.m.	+ 1	for Comment hanpari: I like your observation about needed time. All retopology tool are working rather fast and this is w...
Nov. 12, 2014, 12:39 p.m.	+ 1	for Comment veky: By "ordinary gradient variation" I just meant a horribly naive algorithm, like: fix maxgradvar and m...
Nov. 12, 2014, 12:38 p.m.	+ 3	for super-gyahun_dash
Nov. 12, 2014, 12:37 p.m.	+ 1	for Comment oduvan: Why do you think so? This is what I see as a user who didn't solve the mission
Nov. 12, 2014, 12:15 p.m.	+ 1	for Comment veky: First, you're level 6. And you're asking questions in a naive way. Don't mean to offend you, but unt...
Nov. 11, 2014, 2:18 p.m.	+ 1	for Comment hanpari: As expected! Judging from your reply I suppose you use your brain. I told you not to use such thing ...
Nov. 11, 2014, 10:49 a.m.	+ 1	for Comment hanpari: What about game? Blender Game Engine really improved. But physical simulation are impressive as well...
Nov. 11, 2014, 8:59 a.m.	+ 1	for Post Have you ever heard of Blender?
Nov. 11, 2014, 6:25 a.m.	+ 1	for Comment bukebuer: Text should be in all lowercase when matching words. So change this: if i in text.lower():
Nov. 7, 2014, 7:53 a.m.	+ 1	for Comment Cjkjvfnby: > Again, I don't think it matters here. Checkio is out of real programming word. It is single person...
Nov. 7, 2014, 7:53 a.m.	+ 1	for Comment maurice.makaay: When you like putting functions that are only used together in a single function, boy.., you must qu...
Nov. 7, 2014, 7:53 a.m.	+ 1	for Comment Cjkjvfnby: > When you like putting functions that are only used together in a single function, boy.., you must ...
Nov. 6, 2014, 12:26 p.m.	+ 1	for Comment DiZ: I tested this solution, 100% success on 10000 random tests (right hand rule is very useful)! But it ...
Nov. 5, 2014, 5:59 a.m.	+ 1	for Building Codes
Nov. 5, 2014, 5:54 a.m.	+ 3	for Radius first, circumscribed as the magic word-maurice.makaay
Nov. 4, 2014, 11:57 a.m.	+ 1	for Comment maurice.makaay: Nice shortcut in the end, to use (res > 180). It doesn't make that last line extremely clear, but it...
Nov. 4, 2014, 7:28 a.m.	+ 1	for Comment hanpari: This video might change your opinion :) https://www.youtube.com/watch?v=o9pEzgHorH0
Nov. 3, 2014, 8:42 a.m.	+ 1	for Indexcept-veky
Nov. 3, 2014, 8:41 a.m.	+ 1	for Comment veky: You can think whatever you want, but I think you're subtly wrong. Does one Geoffrey Hill, for exampl...
Nov. 3, 2014, 8:41 a.m.	+ 1	for Comment maurice.makaay: So you consider yourself a code poet. Noted! :)
Nov. 3, 2014, 8:41 a.m.	+ 1	for Comment maurice.makaay: I don't think unclear code can be caused by the use of imports (but I see that dirk86 already agreed...
Nov. 3, 2014, 8:15 a.m.	+ 2	for Just do it-maurice.makaay
Nov. 3, 2014, 6:11 a.m.	+ 1	for Comment bukebuer: try this: if word[i].isalpha() and word[i+1].isalpha(): word[i].isalpha returns a function object wh...
Nov. 3, 2014, 6:09 a.m.	+ 1	for First-charltones
Nov. 3, 2014, 6:06 a.m.	+ 2	for Touch the right wall-maurice.makaay
Nov. 1, 2014, 12:39 p.m.	+ 2	for Lovely prints-Alexis_Bourgoin
Nov. 1, 2014, 7:57 a.m.	+ 1	for Comment N1FFO: Technically, this is two lines: The def line and the return line. You can get it down to one actual ...
Nov. 1, 2014, 7:55 a.m.	+ 1	for First-eleshem
Nov. 1, 2014, 7:52 a.m.	+ 1	for First-nel.red
Nov. 1, 2014, 7:52 a.m.	+ 1	for First-serseregas_8017c410d4544a15b3a
Nov. 1, 2014, 4:52 a.m.	+ 1	for Iterate zyx...-jrobbin5
Nov. 1, 2014, 4:51 a.m.	+ 1	for Row counting Function-jrobbin5
Oct. 31, 2014, 7:18 p.m.	+ 1	for Comment blabaster: The template of solution was def checkio(number): ... return result You write something like def che...
Oct. 30, 2014, 4:47 a.m.	+ 1	for Comment Cjkjvfnby: Can you point some documentation link, for your expectation?
Oct. 30, 2014, 4:47 a.m.	+ 1	for Comment DiEvAl_0d0e0434e59e45f68684d0e: Not a bug. https://docs.python.org/2/library/functions.html#round
Oct. 30, 2014, 4:24 a.m.	+ 1	for First-bukebuer
Oct. 30, 2014, 4:23 a.m.	+ 1	for Straightforward-DiZ
Oct. 30, 2014, 4:23 a.m.	+ 1	for Clear and easy to understand nothing special-KleinerNull
Oct. 30, 2014, 4:23 a.m.	+ 1	for First-suic
Oct. 30, 2014, 4:23 a.m.	+ 1	for Clock Angle-vinc
Oct. 30, 2014, 4:23 a.m.	+ 1	for First-Sim0000
Oct. 30, 2014, 4:23 a.m.	+ 1	for triangle-gyahun_dash
Oct. 30, 2014, 4:22 a.m.	+ 2	for There and back again-veky
Oct. 30, 2014, 4:22 a.m.	+ 4	for First-jcg
Oct. 30, 2014, 4:21 a.m.	+ 1	for Post Wrong precondition?
Oct. 28, 2014, 6:21 a.m.	+ 1	for Comment Cjkjvfnby: Do you know how I gues that you are russian? Use CTRL+F to find you "c".
Oct. 26, 2014, 5:46 a.m.	+ 4	for First-Sim0000
Oct. 23, 2014, 5:04 a.m.	+ 1	for Comment Sim0000: Your subscript is reversed. In line 23, grid[n2][n1]. In line 26, grid[row][col].
Oct. 22, 2014, 7:19 a.m.	+ 1	for min_enum_sum-dronnix
Oct. 20, 2014, 8:34 a.m.	+ 1	for Comment vinc: I think it's overhead. 2d is clearer. "Flat is better than nested."
Oct. 19, 2014, 4:05 a.m.	+ 1	for Comment spoty: Your solution?
Oct. 17, 2014, 9:06 a.m.	+ 1	for Task Non-unique Elements
Oct. 17, 2014, 3:44 a.m.	+ 1	for Comment MagiMaster: For example 1, you have a four space board and you roll a four-sided die. So if you roll a 1 or 2, y...
Oct. 17, 2014, 3:17 a.m.	+ 1	for Comment zver1zver2: good code
Oct. 17, 2014, 3:17 a.m.	+ 1	for Comment UndeadMonkey: Very clear and succinct; I like it!
Oct. 16, 2014, 4:38 a.m.	+ 1	for Comment nathan.l.cook: That's my point. I'm still very new, and easily distracted. :) My first inclination when confronted ...
Oct. 16, 2014, 4:21 a.m.	+ 1	for Comment Sim0000: Because, there is another punctuation '?'.
Oct. 16, 2014, 3:08 a.m.	+ 1	for Comment Sim0000: At least, you need () after isalpha.
Oct. 15, 2014, 1 p.m.	+ 1	for Comment Sim0000: You can use set union to get transitive law. In your case, when users['scout2'] = {'scout1'} users['...
Oct. 15, 2014, 1 p.m.	+ 1	for Comment Sim0000: Your code ignore indirect relation. In first example, scout1 and scout2 are related, and scout3 and ...
Oct. 14, 2014, 5:57 a.m.	+ 1	for Comment blabaster: Your code global hasher # determine x and y position fix it: global hasher hasher = 0 # determine x ...
Oct. 14, 2014, 5:57 a.m.	+ 1	for Comment bunnychai: what if setting the hasher to 0 after line 49?
Oct. 14, 2014, 3:20 a.m.	+ 2	for First-tuxninja
Oct. 13, 2014, 7:10 a.m.	+ 1	for Comment oduvan: Hi :) I think using "return" as a variable wasn't a great idea. The condition at line 12 doesn't mak...
Oct. 13, 2014, 7:09 a.m.	+ 1	for Comment oduvan: Hi :) You can try to put print(i) after line 14 to see what is inside.
Oct. 11, 2014, 10:01 a.m.	+ 1	for Comment veky: 'print "hello world"' is cool, the only problem is it isn't written in Python. :-P Of course I'm bia...
Oct. 11, 2014, 10:01 a.m.	+ 1	for This week in Python 10/11: The most Impressive things Done with Python

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