Python Challenge Solutions

This repository includes solutions to the Python Challenge quizzes for practice and fun.

Website: The Python Challenge — enjoy!

(There are network issues in level_13、level_15、level_17 in China.)

Level 0

2 to 38 = ?

Level 1

Decrypt a string.

Level 2

Find readable characters.

Level 3

Regular expression.

Level 4

And the next nothing is ?

Level 5

Peak hell pronounced like 'pickle'.

Level 6

Nothing in zipfile.

Level 7

ASCII inside an image.

Level 8

Bee is busy.

Level 9

Connect the dots.

Level 10

Progression.

Level 11

Odd even of an image.

Level 12

Deal cards? Deal evils? 1,2,3,4,5.

Level 13

Phone that (remote) evil.

Level 14

100*100 = (100+99+99+98) + (...) + (2,1,1,0)

Level 15

Jan.26th, 1??6 (Mon)

Level 16

Let me get #FF00FF straight.

Level 17

Cookie is new but busynothing is in the past.

Level 18

Images inside hex deltas.

Level 19

Indian? Endian!

Level 20

HTTP/1.1 206 Partial content
See RFC 2616 Section 14.16

Level 21

Decompress, decompress and reverse.
See RFC 1950 Section 2.2
See Bzip2 File Format

Level 22

Draw points according to the image sequence.

Level 23

The 'this' module.

Level 24

Find a path in the maze.

Level 25

Splice the wav(image) files.

Level 26

Email leopold and fix the broken zip.

Level 27

Difference between data and palette[data].
See GIF Specification

Level 28

Difference between next(green) and next(green).

Level 29

Count spaces.

Level 30

Floats, image, formula.

Level 31

Google the grandpa rock and find the differences between two Mandelbrot images.
See Mandelbrot Set

Level 32

Nonogram is a type of clue-based grid-filling puzzle.
See Nonogram
The CP-SAT solver in OR-Tools can solve such problems using boolean variables and constraints.
See 考えるコード ― 制約と最適化の冒険

Level 33

Remove the brightest pixels and find the square images.

Congratulations! All levels are Cleared!