dvereb/Advent-of-Code
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

w.i.p.

Browse Source
This commit is contained in:
David Vereb 2021-12-08 22:08:19 -05:00
parent d25d35f287
commit 443b33e863
1 changed files with 59 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
2021/8/main2.py
View File

@ -35,25 +35,69 @@ def ResetData():
for letter in all_possibilities:
possibilities[letter] = list(all_possibilities)
def ParsePossibilities(text):
text_len = len(text)
if(text_len == 2):
good_letters = [ text[0], text[1] ]
print(good_letters)
def RemoveImpossibleLetters(good_letters, good_positions):
# generate inverse list of good_positions
bad_positions = list(all_possibilities)
for position in good_positions:
bad_positions.remove(position)
# first, get rid of the good letters from all the other positions
for letter in ['a', 'b', 'd', 'e', 'g']: # all the positions not used by #1
for to_remove in good_letters:
possibilities[letter].remove(to_remove)
# second, get rid of the other letters from the positions used by #1
for letter in ['c', 'f']:
# first, get rid of the other letters from the positions used
for position in good_positions: # positions used
to_remove_list = []
for l in possibilities[letter]:
for l in possibilities[position]:
if(not (l in good_letters)):
to_remove_list.append(l)
for to_remove in to_remove_list:
possibilities[letter].remove(to_remove)
if(to_remove in possibilities[position]):
possibilities[position].remove(to_remove)
# second, get rid of the good letters from all the other positions
for position in bad_positions: # positions not used
for to_remove in good_letters:
if(to_remove in possibilities[position]):
possibilities[position].remove(to_remove)
def ParsePossibilities(text):
text_len = len(text)
# The easy ones first:
if(text_len == 2):
good_letters = list(text)
good_positions = ['c', 'f']
RemoveImpossibleLetters(good_letters, good_positions)
if(text_len == 3):
good_letters = list(text)
good_positions = ['a', 'c', 'f']
RemoveImpossibleLetters(good_letters, good_positions)
if(text_len == 4):
good_letters = list(text)
good_positions = ['b', 'c', 'd', 'f']
RemoveImpossibleLetters(good_letters, good_positions)
# This one straight up doesn't help:
# if(text_len == 7):
# good_letters = list(text)
# good_positions = ['a', 'b', 'c', 'd', 'e', 'f', 'g']
# RemoveImpossibleLetters(good_letters, good_positions)
# The harder ones second:
if(text_len == 5):
# Could be 2, 3, or 5
# MUST contain positions 'a', 'd', and 'g' in any 5-position number
# MIGHT contain positions 'b' and 'f' for FIVE
# 'c' and 'e' for TWO
# 'c' and 'f' for THREE
# if one of them is found with two others, it's either c or f
# if one of them is not found with two others, it could be b or e
if(text_len == 6):
# Could be 0, 6, or 9
# MUST contain positions 'a', 'b', 'f', and 'g' in any 6-position number
# MIGHT contain positions 'c' and 'd' for NINE
# 'c' and 'e' for ZERO
# 'd' and 'e' for SIX
total = 0
with open('example_data', 'r') as fp:
@ -62,7 +106,7 @@ with open('example_data', 'r') as fp:
ResetData()
split_line = line.split(' | ')
data = split_line[0].split()
print(data)
# print(data)
codes = split_line[1]
for val in codes.split():
if(len(val) in [2, 3, 4, 7]):