94 lines
2.5 KiB
Python
94 lines
2.5 KiB
Python
from collections import deque
|
|
from tools.aoc import AOCDay
|
|
from typing import Any
|
|
|
|
|
|
class File:
|
|
def __init__(self, name: str, size: int):
|
|
self.name = name
|
|
self.size = size
|
|
|
|
|
|
class Dir:
|
|
def __init__(self, name: str, parent: 'Dir' = None):
|
|
self.name = name
|
|
self.parent = parent
|
|
self.dirs = []
|
|
self.files = []
|
|
|
|
def getSize(self):
|
|
files = sum(x.size for x in self.files)
|
|
return files + sum(x.getSize() for x in self.dirs)
|
|
|
|
|
|
class Day(AOCDay):
|
|
inputs = [
|
|
[
|
|
(95437, "input7_test"),
|
|
(1844187, "input7_dennis"),
|
|
(1367870, "input7"),
|
|
],
|
|
[
|
|
(24933642, "input7_test"),
|
|
(4978279, "input7_dennis"),
|
|
(549173, "input7"),
|
|
]
|
|
]
|
|
|
|
def get_dir_struct(self) -> Dir:
|
|
current_dir = None
|
|
for line in self.getInput():
|
|
if line.startswith("$"): # command
|
|
cmd = line[2:].split(" ")
|
|
if cmd[0] == 'cd':
|
|
if cmd[1] == "..":
|
|
current_dir = current_dir.parent
|
|
else:
|
|
current_dir = Dir(cmd[1], current_dir)
|
|
if current_dir.parent is not None:
|
|
current_dir.parent.dirs.append(current_dir)
|
|
|
|
continue
|
|
|
|
file = line.split(" ")
|
|
if file[0] != 'dir':
|
|
file_size = int(file[0])
|
|
current_dir.files.append(File(file[1], file_size))
|
|
|
|
while current_dir.parent:
|
|
current_dir = current_dir.parent
|
|
|
|
return current_dir
|
|
|
|
def get_sizes(self) -> (int, int):
|
|
root = self.get_dir_struct()
|
|
need_free = 30_000_000 - (70_000_000 - root.getSize())
|
|
smallest = 1e20
|
|
queue = deque()
|
|
queue.append(root)
|
|
sum_size = 0
|
|
while queue:
|
|
current_dir = queue.popleft()
|
|
dir_size = current_dir.getSize()
|
|
if dir_size <= 100_000:
|
|
sum_size += dir_size
|
|
if need_free <= dir_size < smallest:
|
|
smallest = dir_size
|
|
for sub_dir in current_dir.dirs:
|
|
queue.append(sub_dir)
|
|
|
|
return sum_size, smallest
|
|
|
|
def part1(self) -> Any:
|
|
ret, _ = self.get_sizes()
|
|
return ret
|
|
|
|
def part2(self) -> Any:
|
|
_, ret = self.get_sizes()
|
|
return ret
|
|
|
|
|
|
if __name__ == '__main__':
|
|
day = Day(2022, 7)
|
|
day.run(verbose=True)
|