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Problem #048 – trick or treat

Can you help these kids trick or treat their entire neighbourhood in this Halloween special?

combinatorics logic mathematics probability
Problem #047 – surgery gloves

How can two doctors operate two patients with only two pairs of latex gloves?!

logic
TIL #012 – At operator for matrix multiplication

Today I learned that Python 3.5+ supports the operator @ for matrix multiplication.

mathematics numpy programming python
TIL #011 – emojis in Python with pythonji

Today I learned that you can use emojis as variable names in Python if you use pythonji.

programming python
TIL #010 – generator return

Today I learned that Python generators can return a value.

generators programming python
TIL #009 – vars

Today I learned about the built-in function vars in Python.

programming python
Problem #046 – triangle grid

Can you draw 4 triangles in this 5 by 5 grid, covering all dots?

geometry mathematics
TIL #008 – two pass join

Today I learned that the .join method in Python is a two-pass algorithm, and that's why joining a list comprehension is faster than a generator expression.

algorithms programming python
TIL #007 – math.nextafter

Today I learned about the math.nextafter method.

arithmetic mathematics programming python
Conditional expressions | Pydon't 🐍

This Pydon't will teach you how to use Python's conditional expressions.

programming python
TIL #006 – file unpacking

Today I learned that files can also be unpacked in Python.

programming python
List comprehensions 101 | Pydon't 🐍

This Pydon't will teach you the basics of list comprehensions in Python.

programming python
TIL #005 – string unpacking

Today I learned strings can also be unpacked in Python.

programming python
TIL #004 – C3 linearisation

Today I learned about an algorithm that Python uses to sort out inheritance.

algorithms programming python
TIL #003 – ICPO rule for attribute lookup

Today I learned about the ICPO rule for attribute lookup in Python.

programming python
Problem #045 – 1, 2, 3

Figure out the number I'm thinking of with a single question!

logic mathematics
TIL #002 – fake chess AI

Today I learned about a fake chess-playing AI from the 1700s.

chess machine learning
TIL #001 – ceiling division in Python

Today I learned how to do ceiling division in Python just with //.

arithmetic mathematics programming python
set and frozenset | Pydon't 🐍

This Pydon't will teach you how to use the set and frozenset Python built-in types.

programming python
Problem #044 – send more money

Can you solve this simple-looking arithmetic challenge?

arithmetic logic mathematics