61 lines
1.3 KiB
Python
Executable File
61 lines
1.3 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
from functools import reduce
|
|
import sys
|
|
|
|
def tpl(l):
|
|
me, rest = l.split(' = ') # e.g.
|
|
return me, rest
|
|
|
|
def mask(m, n):
|
|
orm = reduce(lambda a, b: a*2 + (b == '1'), (0, *list(m)))
|
|
andm = reduce(lambda a, b: a*2 + (b != '0'), (1, *list(m)))
|
|
return (n & andm | orm)
|
|
|
|
def bmask(m, n):
|
|
orm = reduce(lambda a, b: a*2 + (b == '1'), (0, *list(m)))
|
|
res = (n | orm)
|
|
return res
|
|
|
|
def setmem(d, adr, ghost, val):
|
|
if ghost == []:
|
|
return
|
|
g = ghost[0]
|
|
orm = 2**g
|
|
andm = ~(2**g)
|
|
d[adr|orm] = val
|
|
d[adr&andm] = val
|
|
setmem(d, adr|orm, ghost[1:], val)
|
|
setmem(d, adr&andm, ghost[1:], val)
|
|
|
|
def address(s):
|
|
a = int(s[4:-1])
|
|
return a
|
|
|
|
def ghosts(m):
|
|
g = [(35 - i) for i, j in enumerate(m) if j == 'X']
|
|
return g
|
|
|
|
fn = sys.argv[1] if len(sys.argv) > 1 else 'input%s' % 14
|
|
with open(fn) as f:
|
|
|
|
lines = [l.strip() for l in f.readlines()]
|
|
|
|
_, m = tpl(lines[0])
|
|
t = [tpl(l) for l in lines]
|
|
d = {}
|
|
for a, b in t:
|
|
if a == 'mask':
|
|
m = b
|
|
else:
|
|
d[a] = mask(m, int(b))
|
|
print(sum(d.values()))
|
|
|
|
d = {}
|
|
for a, b in t:
|
|
if a == 'mask':
|
|
m = b
|
|
else:
|
|
setmem(d, bmask(m, address(a)), ghosts(m), int(b))
|
|
print(sum(d.values()))
|
|
|