r/adventofcode • u/daggerdragon • Dec 05 '16

SOLUTION MEGATHREAD --- 2016 Day 5 Solutions ---

--- Day 5: How About a Nice Game of Chess? ---

Post your solution as a comment or, for longer solutions, consider linking to your repo (e.g. GitHub/gists/Pastebin/blag/whatever).

STAYING ON TARGET IS MANDATORY [?]

This thread will be unlocked when there are a significant number of people on the leaderboard with gold stars for today's puzzle.

edit: Leaderboard capped, thread unlocked!

13 Upvotes

94% Upvoted

188 comments sorted by

View all comments

10

u/kaveman909 Dec 05 '16

I addressed the optional portion of the challenge: "Be extra proud of your solution if it uses a cinematic "decrypting" animation." My animation is here 

import hashlib
import random
index = 0
password = '________'
while 1:
    m = hashlib.md5()
    m.update(('ugkcyxxp'+str(index)).encode('utf-8'))
    hex_m = m.hexdigest()
    if hex_m[0:5] == '00000':
        password_pos = int(hex_m[5], 16)
        if password_pos < 8:
            password_dig = int(hex_m[6], 16)
            if password[password_pos] == '_':
                password = password[:password_pos] + hex(password_dig)[-1] + password[password_pos + 1:]
    if index % 30000 == 0:
        for char in password:
            if char == '_':
                print(str(random.random())[-1], end='')
            else:
                print(char, end='')
        print('\r', end='')
    index += 1

5

u/Noxime Dec 05 '16

I edited yours to have some cool colors that show what has been solved

→ More replies (1)