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December 1, 2024 18:33
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Advent of code - day 1 python
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import collections | |
import pathlib | |
def get_sorted_lists_from_input(input_file_path: pathlib.Path) -> tuple[list[int], list[int]]: | |
input_lines = input_file_path.read_text().split("\n") | |
list_one = [] | |
list_two = [] | |
for line in input_lines: | |
if line: | |
value_one, value_two = line.split() | |
list_one.append(int(value_one)) | |
list_two.append((int(value_two))) | |
sorted_list_one = sorted(list_one) | |
sorted_list_two = sorted(list_two) | |
return sorted_list_one, sorted_list_two | |
def calculate_total_distance(input_file_path: pathlib.Path) -> int: | |
sorted_list_one, sorted_list_two = get_sorted_lists_from_input(input_file_path) | |
total_distance = 0 | |
for value_one, value_two in zip(sorted_list_one, sorted_list_two): | |
distance = abs(value_one - value_two) | |
total_distance += distance | |
return total_distance | |
def calculate_similarity_score(input_file_path: pathlib.Path) -> int: | |
sorted_list_one, sorted_list_two = get_sorted_lists_from_input(input_file_path) | |
counter_of_list_two = collections.Counter(sorted_list_two) | |
similarity_score = 0 | |
for value_one in sorted_list_one: | |
number_of_times_in_list_two = counter_of_list_two.get(value_one, 0) | |
similarity_score += value_one * number_of_times_in_list_two | |
return similarity_score | |
def main(): | |
input_file_path = pathlib.Path("input.txt") | |
print(f"{calculate_total_distance(input_file_path)=}") | |
print(f"f{calculate_similarity_score(input_file_path)=}") | |
if __name__ == '__main__': | |
main() |
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