25 lines
403 B
Python
25 lines
403 B
Python
|
#!/usr/bin/env python3
|
||
|
|
|
||
|
|
from collections import Counter
|
||
|
|
from functools import reduce
|
||
|
|
|
||
|
|
# 1
|
||
|
|
|
||
|
|
with open("day01") as f:
|
||
|
|
lines = f.readlines()
|
||
|
|
|
||
|
|
els = [l.split() for l in lines]
|
||
|
|
l1 = [int(el[0]) for el in els]
|
||
|
|
l2 = [int(el[1]) for el in els]
|
||
|
|
|
||
|
|
l1.sort()
|
||
|
|
l2.sort()
|
||
|
|
|
||
|
|
d = [abs(e[0] - e[1]) for e in zip(l1, l2)]
|
||
|
|
res = sum(d)
|
||
|
|
|
||
|
|
|
||
|
|
# 2
|
||
|
|
ctn = Counter(l2)
|
||
|
|
res = reduce(lambda accum, e: accum + e*ctn.get(e, 0), l1, 0)
|