JoeDuncko

# Reanme the files to start with a capital letter and end with a 2, 
# see https://stackoverflow.com/questions/3011625/git-mv-and-only-change-case-of-directory
for f in *; do git mv --force "./$f" "./${(C)f[1]}${f[2,-1]}2"; done

# Remove the 2
for f in *; do git mv --force "./$f" "./${f%?}"; done

aparrish

bkaradzic

Orthodox C++

This article has been updated and is available here.

xavriley

Binary Rhythms

Take an example of 8 quavers in a bar of 4/4. How many possible combinations of beats and rests are there?

If we represent the bar as an array and each beat as 1 it might look something like this

[0, 0, 0, 0, 0, 0, 0, 0]
[0, 0, 0, 0, 0, 0, 0, 1]
[0, 0, 0, 0, 0, 0, 1, 0]

hrldcpr

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!