ljy95135 profile - python coding challenges

ljy95135

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Member for 8 years, 1 month, 17 days

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June 2, 2016, 5:15 a.m.	+ 1	for Comment veky: That's not _wrong_, that's just needlessly complicating things. Same as if x > 5: return True else: ...
June 1, 2016, 11:09 a.m.	+ 1	for Comment hrvoje: Line 23 is very creative, awesome! Have some thumbs :)
May 31, 2016, 3:54 p.m.	+ 4	for Short backwards DFS-StefanPochmann
May 31, 2016, 3:53 p.m.	+ 4	for Counter-gyahun_dash
May 31, 2016, 6:37 a.m.	+ 1	for Task Simplification
May 31, 2016, 6:27 a.m.	+ 4	for __-Cjkjvfnby
May 31, 2016, 6:24 a.m.	+ 1	for Flood Fill-PositronicLlama
May 31, 2016, 6:12 a.m.	+ 3	for named group-gyahun_dash
May 31, 2016, 6:10 a.m.	+ 2	for slice forward-blabaster
May 30, 2016, 1:46 p.m.	+ 1	for Comment DiZ: Is is called an [A* algorithm](https://en.wikipedia.org/wiki/A*_search_algorithm) ;-)
May 30, 2016, 1:09 a.m.	+ 1	for Comment Lasica: I'd like to put some light on mysterious t21 and t31 lists. For other reviewers wondering how does t...
May 30, 2016, 12:30 a.m.	+ 2	for First-canassa
May 30, 2016, 12:18 a.m.	+ 4	for First-takapt0226
May 27, 2016, 10:50 a.m.	+ 4	for First-gyahun_dash
May 27, 2016, 10:48 a.m.	+ 1	for First-ciel
May 27, 2016, 9:11 a.m.	+ 1	for Comment veky: While you're there, take a look at Counter. Extremely useful class. :-)
May 27, 2016, 9:10 a.m.	+ 1	for Comment veky: Yes. The usual answer to "why Python has no switch statements" is "because it has dicts". ;-)
May 27, 2016, 3:01 a.m.	+ 4	for First-Sim0000
May 27, 2016, 2:58 a.m.	+ 4	for Double ended-veky
May 27, 2016, 2:54 a.m.	+ 1	for Comment veky: Imagine you have a list x of million items. What does x.pop(0) do? * it returns x[0] * it sets x[0] ...
May 27, 2016, 2:52 a.m.	+ 2	for Stack-veky
May 27, 2016, 2:26 a.m.	+ 1	for Comment DiZ: This is an heap-based Dijkstra's algorithm: it constructs the right path by testing all possibilitie...
May 27, 2016, 2:23 a.m.	+ 1	for set-gyahun_dash
May 27, 2016, 2:21 a.m.	+ 1	for First-gyahun_dash
May 27, 2016, 2:21 a.m.	+ 1	for Comment veky: It's strange that you didn't reuse area in volume. And if you want to be a wizard, corners can be mu...
May 26, 2016, 10:19 a.m.	+ 4	for The Key-bryukh
May 25, 2016, 2:23 p.m.	+ 1	for Comment veky: Yes. You'll notice that the "essence" of a solution, try/except lines, are getting drowned in increa...
May 25, 2016, 10:44 a.m.	+ 1	for Comment veky: It can be anything callable (returning an int-like thing). Look: class Bandersnatch: def __call__(se...
May 25, 2016, 10:20 a.m.	+ 1	for Comment veky: As I told you in another comment, all CiO wants is (in the true ducktyping manner) something it can ...
May 25, 2016, 10:07 a.m.	+ 1	for Comment veky: Imagine if the system was different. Imagine the task says: you have an integer named n. Write a sta...
May 25, 2016, 7:45 a.m.	+ 2	for Hinted-veky
May 25, 2016, 7:42 a.m.	+ 2	for Hinted-veky
May 25, 2016, 7:42 a.m.	+ 1	for Comment veky: `lambda` is not a function, it is a way of constructing functions (like `def` is, for example). But ...
May 25, 2016, 7:40 a.m.	+ 1	for First-dagger126
May 25, 2016, 7:36 a.m.	+ 2	for simpler-mr.floppy
May 25, 2016, 7:35 a.m.	+ 1	for Comment veky: Nice. Even I didn't know timedelta has \_\_abs\_\_. :-)
May 25, 2016, 2:02 a.m.	+ 1	for Task Mind Switcher
May 24, 2016, 10:55 a.m.	+ 2	for filter-veky
May 24, 2016, 10:15 a.m.	+ 1	for Comment veky: Listcomp is usually ok if you really do want a list as an output. Here you don't: you want str, so y...
May 24, 2016, 10:13 a.m.	+ 1	for Comment veky: The truth is (as always), it depends. Not _everything_ in Python is adapted completely to EAFP style...
May 24, 2016, 10:13 a.m.	+ 1	for Comment veky: It is short because the task is simple. Ideal programming language should have solutions of approxim...
May 24, 2016, 9:36 a.m.	+ 4	for First-gyahun_dash
May 24, 2016, 9:08 a.m.	+ 4	for Convert and Iterate-bryukh
May 24, 2016, 9:05 a.m.	+ 2	for operators-Cjkjvfnby
May 24, 2016, 9 a.m.	+ 1	for Max Min-bryukh
May 24, 2016, 8:44 a.m.	+ 1	for Comment veky: "Clever compiler" would have to be _much_ more clever than you think. It's perfectly possible that "...
May 24, 2016, 8:41 a.m.	+ 4	for Slice-bryukh
May 24, 2016, 8:38 a.m.	+ 4	for Indexcept-veky
May 24, 2016, 8:35 a.m.	+ 1	for Comment veky: Many. :-) EAFP. Read [this](http://www.checkio.org/mission/number-radix/publications/tdietert/python...
May 24, 2016, 8:33 a.m.	+ 1	for First-Hanna_Hofman
May 24, 2016, 12:09 a.m.	+ 4	for branch if box-DiZ
May 23, 2016, 3:01 p.m.	+ 1	for Task One line Drawing
May 23, 2016, 3 p.m.	+ 4	for lol spaggeti!-iggymas
May 23, 2016, 8:02 a.m.	+ 1	for Task Numbered Triangles
May 23, 2016, 2:39 a.m.	+ 1	for Task Radiation Search
May 23, 2016, 2:12 a.m.	+ 1	for Task Univocalic Factaral
May 22, 2016, 1:32 a.m.	+ 1	for Task Vigenere Cipher
May 21, 2016, 2:35 p.m.	+ 1	for Task What Does the Cow Say?
May 21, 2016, 5:28 a.m.	+ 1	for Task Numbers Factory
May 21, 2016, 4:13 a.m.	+ 1	for Task Three Points Circle
May 21, 2016, 2:50 a.m.	+ 1	for Task Find Sequence
May 20, 2016, 3:21 a.m.	+ 1	for Task Moria Doors
May 20, 2016, 2:57 a.m.	+ 1	for Task Restricted Sum
May 20, 2016, 2:46 a.m.	+ 1	for Task The Hamming Distance
May 20, 2016, 2:26 a.m.	+ 1	for Task Letter Queue
May 20, 2016, 2:17 a.m.	+ 1	for Task Brackets
May 17, 2016, 9:41 a.m.	+ 4	for First-zero_loss
May 17, 2016, 7:50 a.m.	+ 1	for Comment halo107: I also use chrome for mac and meet the same problem as you, every time, I check the view-source of t...
May 17, 2016, 7:43 a.m.	+ 4	for combination-Sim0000
May 17, 2016, 5:49 a.m.	+ 1	for Comment Sim0000: My solution use Dijkstra only. We can see given map as two layer map with extra direction up and dow...
May 16, 2016, 8:48 a.m.	+ 3	for First-JulianNicholls
May 10, 2016, 1:34 p.m.	+ 1	for Task Express Delivery
May 10, 2016, 8:36 a.m.	+ 1	for Task Open Labyrinth
May 10, 2016, 8:05 a.m.	+ 1	for Task Golden Pyramid
May 9, 2016, 7:05 a.m.	+ 1	for Comment veky: Algorithm that doesn't work doesn't work, no matter how many tests it doesn't pass. :-)
May 9, 2016, 6:57 a.m.	+ 1	for Comment bryukh: That means in rings you can find all numbers from 1 to N.
May 9, 2016, 6:56 a.m.	+ 1	for Task Break Rings
May 9, 2016, 6:16 a.m.	+ 3	for Table look up-cmchao
May 9, 2016, 5:49 a.m.	+ 3	for Simulated-PositronicLlama
May 7, 2016, 4:47 a.m.	+ 3	for Do the math-nickie
May 7, 2016, 4:42 a.m.	+ 1	for Comment veky: LOL. The shorter I write the code, the longer the explanations in the comments are. :-D Good work. :...
May 3, 2016, 9:19 a.m.	+ 1	for Task Pearls in the Box
May 3, 2016, 7:50 a.m.	+ 3	for golf-minto
May 3, 2016, 7:44 a.m.	+ 1	for Comment narimiran: Line 10: return str_b.rjust(8, '0') Similarly, line 38: str_b = str_b.ljust(32, '0') Lines 40-45: st...
May 3, 2016, 7:43 a.m.	+ 1	for Comment narimiran: Line 8: maybe something like this: for col, row in pawns: would help with the readability later. Als...
May 3, 2016, 7:43 a.m.	+ 1	for Comment narimiran: > I think it’s clear but seems has lots of ways to optimize… You already imported calendar - why did...
April 24, 2016, 2:22 a.m.	+ 1	for Comment veky: You _only_ have to know (or dare to hope:) that there is a module to do what you want. Then you go t...
April 20, 2016, 3:33 a.m.	+ 3	for First-zcjsword
April 20, 2016, 3:33 a.m.	+ 1	for Comment zcjsword: @ljy95135 I am happy to. As mentioned in my headline comments, no need to loop through the entire ye...
April 20, 2016, 1:09 a.m.	+ 1	for Comment veky: len([x for whatever if cond]) ~~~> sum(cond for whatever) Faster, shorter, less memory-intensive and...
April 20, 2016, 1:06 a.m.	+ 1	for With lovely lambda expression-veghadam1991
April 20, 2016, 1:02 a.m.	+ 3	for Without datetime-ciel
April 20, 2016, 12:57 a.m.	+ 1	for Comment veky: > eye-opening. The title is suggestive. ;-) > Seems that as long as knew a module or method exists b...
April 19, 2016, 3:19 p.m.	+ 2	for Assault of batteries-veky
April 19, 2016, 3:16 p.m.	+ 2	for First...-k_spamowe
April 19, 2016, 3:02 p.m.	+ 1	for Task Solution for Anything
April 19, 2016, 9:34 a.m.	+ 1	for Task The Longest Palindromic
April 19, 2016, 7:23 a.m.	+ 1	for Task IP Network: Route Summarization
April 19, 2016, 7:13 a.m.	+ 2	for Without if/else-martin_b
April 19, 2016, 7:11 a.m.	+ 1	for Random fact: Abraham Lincoln was the first president to ever be photographed at his inauguration.-siebenschlaefer