The Coin Flop
In this challenge, you start out with a stack of 100 coins, alternating between gold and silver:
1. Gold
2. Silver
3. Gold
4. Silver
...
99. Gold
100. Silver
Now, Gold, Inc. will pay you for any gold coins you can give them. Furthermore, they really like bulk ship...
In mathematics, a pathological phenomenon is one whose properties are considered atypically bad or counterintuitive; the opposite is well-behaved. A notable case is the Alexander horned sphere, a counterexample showing that topologically embedding the sphere S2 in R3 may fail to "separate the space cleanly", unless an extra condition of tameness is used to suppress possible wild behaviour. See Jordan–Schönflies theorem.
== Pathological functions ==
A classic example is the Weierstrass function, which is continuous everywhere but differentiable nowhere. The sum of a differentiable function and the...
Jelly, 17 14 bytes
ṪO*2.ị“ .\/\”ṭ
Try it online! or verify all test cases.
How it works
ṪO*2.ị“ .\/\”ṭ Main link. Argument: s (string)
Ṫ Tail; pop and yield the last chatacter.
O Ordinal; map “./\” to [46, 47, 92].
*2. Elevate the code point to the p...
As a programmer or computer scientist one might encounter quite a lot of trees - of course not the woody growing-in-the-wrong-direction kind, but the nice pure mathematical kind:
*<- root (also a node)
/|\<- edge
* * *<- inner node
| / \
* * *<- leaf (also a node)
|
*
Naturally over ...
Python 2, 143 bytes
I=0
a={2}
def f(s):
for d in'123456789':u=[d+s,s+d][I];z=int(u);z+=z==2;z!=63973>2==pow(2,z,z)>a.add(z)<f(u)
f('')
lambda n:sorted(a)[~-n]
I=1
Consists of five parts:
I=0
A newline
a={2}…[~-n]
A newline
I=1
So reversal is just flipping the value of I.
Explanation
The...2
Using data from the API here, output the names of the three countries with the most Olympic gold medals at the 2016 Rio Olympic Games (i.e. the first element of the returned list).
For example, at the time of posting (18:23 UTC+1, Monday, 15th August), the USA, the UK and China have the most gol...
I was going to submit an answer but it would have to import a module (which is built-in to Python). This makes my answer two-lined, because of the import. Is this acceptable?
What is the shortest way to see if an input is a wordinian using any programming language?
A wordinian is a word that contains words of length 1 to the original word's length. For example,
bin
'I' is a word
'in' is a word
'bin' is a word
Or,
stage
'a' is a word
'ta' is ...
Caker, 294 bytes
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