mirror of
https://github.com/cupcakearmy/advent-of-code.git
synced 2024-11-17 10:30:29 +01:00
51 lines
1.2 KiB
Python
51 lines
1.2 KiB
Python
from typing import Dict, List
|
|
from os.path import join, dirname
|
|
from functools import reduce
|
|
|
|
|
|
class Forest():
|
|
|
|
def __init__(self, text: str) -> None:
|
|
self.text = text.strip().split('\n')
|
|
|
|
@property
|
|
def height(self) -> int:
|
|
return len(self.text)
|
|
|
|
def is_tree_at(self, y: int, x: int) -> bool:
|
|
if y > self.height:
|
|
return False
|
|
row = self.text[y]
|
|
return row[x % len(row)] == '#'
|
|
|
|
|
|
data = join(dirname(__file__), 'data.txt')
|
|
with open(data) as f:
|
|
forest = Forest(f.read())
|
|
|
|
# 1
|
|
trees: int = 0
|
|
for y in range(forest.height):
|
|
is_tree: bool = forest.is_tree_at(y, y*3)
|
|
if is_tree:
|
|
trees += 1
|
|
print(f'Result Simple: {trees}')
|
|
|
|
# 2
|
|
all: Dict[str, int] = {
|
|
'11': 0,
|
|
'13': 0,
|
|
'15': 0,
|
|
'17': 0,
|
|
'21': 0,
|
|
}
|
|
for i in range(forest.height):
|
|
for key, value in all.items():
|
|
dy, dx = map(int, list(key))
|
|
y = i * dy
|
|
x = i * dx
|
|
if forest.is_tree_at(y, x):
|
|
all[key] += 1
|
|
total = reduce((lambda x, y: x * y), all.values())
|
|
print(f'Result Combined: {list(all.values())} = {total}')
|