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An unrooted binary tree is an unrooted tree (a graph that has single connected component and contains no cycles) where each vertex has exactly one or three neighbors. It is used in bioinformatics to show evolutionary relationships between species.
If such a tree has \$n\$ internal nodes, it neces...
Explanation
The edit distance between two strings is a function of the minimum possible number of insertions, deletions, or substitutions to convert one word into another word.
Insertions and deletions cost 1, and substitutions cost 2.
For example, the distance between AB and A is 1, because d...7
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In my previous bioinformatics challenge, I asked you to mutate a DNA sequence. This time, I'd like you to evaluate how likely a mutation, or a series of mutations, is.
The two types of substitutions are transitions and transversions, and due to the chemical structure of DNA bases, transitions are...
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Sssh i'm Whisper
In honuor of the language of this month, Whispers, output Wisspers intro lyrics (with a small modification)
Rules:
The lyrics has to be outputed exactly as stated below
Use of external resources is not allowed
Use any language, Standard code golf rules apply. The shortest submis...
Python 3 (Cython), 17 bytes
I=input()
exec(I)
As "any kind of input format" with "arbitrary values" is allowed, I choose for "Ten" the string:
import re;"!TEN";signs = [0 if "!"+"TEN" == i else 1 if "!"+"CHI" == i else 2 for i in re.findall(r"!\w\w\w", I)];print("Fuma Shuriken") if len(signs) =...0
Determine if a dot(comma) program halts
code-golf decision-problem halting-problem
Dotcomma is a simple esolang I made a while ago that only uses four operators: [.,]. In this challenge, you'll interpret a dotcomma program consisting only of [.]. This means there is no input, output, or queue, m...
Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. It consists of frozen crystalline water throughout its life cycle, starting when, under suitable conditions, the ice crystals form in the atmosphere, increase to millimeter size, precipitate and accumulate on surfaces, then metamorphose in place, and ultimately melt, slide or sublimate away.
Snowstorms organize and develop by feeding on sources of atmospheric moisture and cold air. Snowflakes nucleate around particles...
