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Finish day5p1

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Evie Litherland-Smith 2024-12-26 10:07:01 +00:00
parent fb28af7e0a
commit 0e026e3ba4
2 changed files with 1385 additions and 5 deletions
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1370
day5/input.txt Normal file
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20
day5/run.py
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@ -37,14 +37,21 @@ class CheckManual:
self._input = input[1:] self._input = input[1:]
sep = self._input.splitlines().index("") sep = self._input.splitlines().index("")
self.rules = self.parse_rules(self._input.splitlines()[:sep]) self.rules = self.parse_rules(self._input.splitlines()[:sep])
self.pages = self._input.splitlines()[sep:] self.pages = [val.split(",") for val in self._input.splitlines()[sep + 1 :]]
self.validity = self.check_page_order()
def __str__(self) -> str: def __str__(self) -> str:
return f"Part1: {self._part1}\nPart2: {self._part2}" return f"Part1: {self._part1}\nPart2: {self._part2}"
@property @property
def _part1(self) -> int: def _part1(self) -> int:
return None return sum(
[
int(val[len(val) // 2])
for val, check in zip(self.pages, self.validity)
if check
]
)
@property @property
def _part2(self) -> int: def _part2(self) -> int:
@ -56,10 +63,9 @@ class CheckManual:
def make_rule(rule: str, sep: str = "|") -> Callable[[str], bool]: def make_rule(rule: str, sep: str = "|") -> Callable[[str], bool]:
left, right = rule.split(sep) left, right = rule.split(sep)
def check(pages: str) -> bool: def check(pages: List[str]) -> bool:
_pages = pages.split(",")
try: try:
_pages.index(left) < _pages.index(right) return pages.index(left) < pages.index(right)
except ValueError: except ValueError:
return True return True
@ -74,3 +80,7 @@ class CheckManual:
if __name__ == "__main__": if __name__ == "__main__":
example = CheckManual(EXAMPLE) example = CheckManual(EXAMPLE)
print(example) print(example)
assert example._part1 == 143
with open("input.txt", "r") as f:
main = CheckManual(f.read())
print(main)