Paul Walko 2 years ago
parent eb435f92bd
commit c5c7f19d49

@ -0,0 +1,40 @@
#!/usr/bin/env python3
from random import randrange
import sys
with open(sys.argv[1], 'r') as f:
L = f.readlines()
L = [x.strip() for x in L]
# part 1
l = len(L)
li = len(L[0])
s = [3, 1]
i = 0
j = 0
t = 0
while i < l:
i += s[1]
j += s[0]
if i < l and L[i][j % li] == '#':
t += 1
print(t)
# part 2
l = len(L)
li = len(L[0])
ss = [[1, 1], [3, 1], [5, 1], [7, 1], [1, 2]]
t = 1
for n in range(len(ss)):
s = ss[n]
i = 0
j = 0
tn = 0
while i < l:
i += s[1]
j += s[0]
if i < l and L[i][j % li] == '#':
tn += 1
t *= tn
print(t)

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@ -0,0 +1,63 @@
#!/usr/bin/env python3
import re
import sys
L = []
with open(sys.argv[1], 'r') as f:
L = f.readlines()
L = [x.strip() for x in L]
ACCEPTED_FIELDS = {'byr', 'iyr', 'eyr', 'hgt', 'hcl', 'ecl', 'pid'}
# part 1
j = 0
people = [0]
for i in L:
if i == '':
people.append(0)
continue
fields = i.split(' ')
for f in fields:
if f.split(':')[0] in ACCEPTED_FIELDS:
people[-1] += 1
valid = 0
for p in people:
if p == len(ACCEPTED_FIELDS):
valid += 1
print(valid)
# part 2
VALID_ECL = {'amb', 'blu', 'brn', 'gry', 'grn', 'hzl', 'oth'}
j = 0
people = [{'valid': 0, 'byr': '', 'iyr': '', 'eyr': '', 'hgt': '', 'ecl': '', 'pid': ''}]
for i in L:
if i == '':
people.append({'valid': 0, 'byr': '', 'iyr': '', 'eyr': '', 'hgt': '', 'ecl': '', 'pid': ''})
continue
fields = i.split(' ')
for f in fields:
if f.split(':')[0] in ACCEPTED_FIELDS:
people[-1]['valid'] += 1
people[-1][f.split(':')[0]] = f.split(':')[1]
valid_people = []
for p in people:
if p['valid'] == len(ACCEPTED_FIELDS):
valid_people.append(p)
valid = 0
for v in valid_people:
if v['byr'].isdigit() and int(v['byr']) >= 1920 and int(v['byr']) <= 2002 and \
v['iyr'].isdigit() and int(v['iyr']) >= 2010 and int(v['iyr']) <= 2020 and \
v['eyr'].isdigit() and int(v['eyr']) >= 2020 and int(v['eyr']) <= 2030 and \
((v['hgt'].endswith('cm') and (int(v['hgt'].split('cm')[0]) >= 150 and int(v['hgt'].split('cm')[0]) <= 193)) or \
(v['hgt'].endswith('in') and (int(v['hgt'].split('in')[0]) >= 59 and int(v['hgt'].split('in')[0]) <= 76 ))) and \
(v['hcl'].startswith('#') and len(v['hcl'].split('#')[1]) == 6 and bool(re.match(r'^[0-9a-f]*$', v['hcl'].split('#')[1]))) and \
v['ecl'] in VALID_ECL and \
len(v['pid']) == 9 and bool(re.match(r'^[0-9]*$', v['pid'])):
valid += 1
print(valid)

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