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Solving “Who owns the Zebra” programmatically?
...
Here's a solution in Python based on constraint-programming:
from constraint import AllDifferentConstraint, InSetConstraint, Problem
# variables
colors = "blue red green white yellow".split()
nationalities = "Norwegian German Dane Swede English".split()
pet...
How do I determine the size of an object in Python?
... +8 for each additional
224 set 5th increases to 736; 21nd, 2272; 85th, 8416; 341, 32992
240 dict 6th increases to 368; 22nd, 1184; 43rd, 2280; 86th, 4704; 171st, 9320
136 func def does not include default args and other attrs
1056 class def no slots
56 class in...
How to construct a timedelta object from a simple string
...
72
For the first format(5hr34m56s), you should parse using regular expressions
Here is re-based s...
Fixed point vs Floating point number
...(%) operand.
12.34 (pseudocode):
v1 = 1234 / 100 // get the whole number
v2 = 1234 % 100 // get the decimal number (100ths of a whole).
print v1 + "." + v2 // "12.34"
Floating point numbers are a completely different story in programming. The current standard for floating point numbers use somet...
What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...array objectAtIndex:i]
[NSDictionary dictionaryWithObjectsAndKeys: v1, k1, v2, k2, nil];
[dictionary valueForKey:k]
@[a, b, c]
array[i]
@{k1:v1, k2:v2}
dictionary[k]
This part is new. Expression Literals
When you have an expression (M_PI / 16 for example) you should put it inside parent...
How do I add the contents of an iterable to a set?
...
John MachinJohn Machin
72.5k1010 gold badges116116 silver badges172172 bronze badges
...
Android. WebView and loadData
...t in Javadoc) in the latest 01/2019 bug in Chrominium (present in WebView M72 (72.0.3626.76)):
https://bugs.chromium.org/p/chromium/issues/detail?id=929083
Official statement from Chromium team:
"Recommended fix:
Our team recommends you encode data with Base64. We've provided examples for how to ...
App Inventor 2 项目合并工具 AIMerge · App Inventor 2 中文网
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App Inventor 2 项目合并工具 AIMerge
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App Inventor 2 项目合并工具
本文档最初由米尔斯学院（Mills College）的 Kate Feeney 为 AI Classic 编写。该计划在她的论文通...
RSA Public Key format
...EGER :FB1199FF0733F6E805A4FD3B36CA68E94D7B974621162169C71538A539372E27F3F51DF3B08B2E111C2D6BBF9F5887F13A8DB4F1EB6DFE386C92256875212DDD00468785C18A9C96A292B067DDC71DA0D564000B8BFD80FB14C1B56744A3B5C652E8CA0EF0B6FDA64ABA47E3A4E89423C0212C07E39A5703FD467540F874987B209513429A90B09B049703D54D9A...
AngularJS - $anchorScroll smooth/duration
...ub.com/arnaudbreton/angular-smoothscroll
https://gist.github.com/justinmc/d72f38339e0c654437a2
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