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Uglify 2020 day02

This commit is contained in:
Luke Hubmayer-Werner 2020-12-10 19:06:43 +10:30
parent 27395c908c
commit de078fee90
1 changed files with 4 additions and 6 deletions
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10
2020/day02.py
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@ -1,10 +1,8 @@
import re import re
ex = re.compile(r'(\d+)-(\d+) (\w): (.*)') ex = re.compile(r'(\d+)-(\d+) (\w): (.*)')
f = lambda i,j,c,s: (int(i), int(j), c, s) # Wish I could sneak this into the listcomp but can't think of a fun way to do that at present :(
with open('input02', 'r') as file: with open('input02', 'r') as file:
data = [ex.match(line).groups() for line in file.readlines()] data = [f(*ex.match(line).groups()) for line in file.readlines()]
valid = [(int(i)<=s.count(c)<=int(j)) for i,j,c,s in data] print(f'Part 1: {[(i<=s.count(c)<=j) for i,j,c,s in data].count(True)}')
print(f'Part 1: {valid.count(True)}') print(f'Part 2: {[(s[i-1]==c)^(s[j-1]==c) for i,j,c,s in data].count(True)}') # This is fragile, beware inputs that may have indices out of range!
valid2 = [(s[int(i)-1]==c)^(s[int(j)-1]==c) for i,j,c,s in data] # This is fragile, beware inputs that may have indices out of range!
print(f'Part 2: {valid2.count(True)}')