advent-of-code/2024/day1/part2.py
2024-12-02 16:23:28 +01:00

38 lines
963 B
Python

from pathlib import Path
from day1.common import get_ordered_lists
def get_elem_amount(data: list[int]) -> dict[int, int]:
data_set = set(data)
amount = {}
for element in data_set:
nb_elem = data.count(element)
data.remove(element)
amount[element] = nb_elem
return amount
def compute_similarity_score(
elem_amount1: dict[int, int], elem_amount2: dict[int, int]
) -> int:
score = 0
for k1, v1 in elem_amount1.items():
if k1 in elem_amount2.keys():
score += k1 * v1 * elem_amount2[k1]
return score
def main(data_file: Path):
list1, list2 = get_ordered_lists(data_file)
elem_amount1 = get_elem_amount(list1)
elem_amount2 = get_elem_amount(list2)
similarity_score = compute_similarity_score(elem_amount1, elem_amount2)
print(similarity_score)
return similarity_score
if __name__ == "__main__":
file = Path(__file__).parent / "input-data"
main(file)