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Day 14 (glamorized)

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Sebastian Seedorf
2020-12-14 10:49:11 +01:00
parent 425d6ee740
commit 00801bcb48
2 changed files with 7 additions and 7 deletions
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10
day14/part1.py
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@@ -3,19 +3,19 @@ import re
lines = (x.strip() for x in open("input.txt")) lines = (x.strip() for x in open("input.txt"))
mem = {} mem = {}
regex_mask = re.compile(r"mask = (.+)") regex_mask = re.compile(r"mask = (.+)")
regex_mem = re.compile(r"mem\[(.*)] = (.+)") regex_mem = re.compile(r"mem\[(.+)] = (.+)")
mask_and = 0 mask_and = 0
mask_or = -1 mask_or = -1
for line in lines: for line in lines:
match = regex_mask.match(line) match = regex_mask.match(line)
if match is not None: if match is not None:
mask = match.group(1)[::-1] mask = match.group(1)
mask_and = sum(2**i for i, v in enumerate(mask) if v != '0') mask_and = int(mask.replace('X', '1'), 2)
mask_or = sum(2**i for i, v in enumerate(mask) if v == '1') mask_or = int(mask.replace('X', '0'), 2)
else: else:
match = regex_mem.match(line) match = regex_mem.match(line)
addr, dec = list(map(int, match.groups())) addr, dec = list(map(int, match.groups()))
mem[addr] = dec & mask_and | mask_or mem[addr] = dec & mask_and | mask_or
print(sum(map(lambda x: mem[x], mem))) print(sum(mem.values()))

4
day14/part2.py
View File

@@ -3,7 +3,7 @@ import re
lines = (x.strip() for x in open("input.txt")) lines = (x.strip() for x in open("input.txt"))
mem = {} mem = {}
regex_mask = re.compile(r"mask = (.+)") regex_mask = re.compile(r"mask = (.+)")
regex_mem = re.compile(r"mem\[(.*)] = (.+)") regex_mem = re.compile(r"mem\[(.+)] = (.+)")
mask = "" mask = ""
@@ -31,4 +31,4 @@ for line in lines:
for x in combination(res): for x in combination(res):
mem[x] = dec mem[x] = dec
print(sum(map(lambda x: mem[x], mem))) print(sum(mem.values()))