6dp.py


1
2
3
4
5
6
7
8
9
10
11
12

from functools import cache
from utils import open_day

@cache
def count_fish(life):
    if life <= 0: return 1
    return count_fish(life - 7) + count_fish(life - 9)

fish = list(map(int, open_day(6).read().split(',')))

print(sum(count_fish(80 - f) for f in fish))
print(sum(count_fish(256 - f) for f in fish))