Advent of Code 2024, day 01

AdventOfCode2024.Day01.py

import re

with open("./data/input01.txt") as inputFile:
    input = inputFile.read().splitlines()

left = []
right = []
for line in input:
    m = re.findall(r'(\d+)', line)
    left.append(int(m[0]))
    right.append(int(m[1]))

# Part 1: 2970687

res = 0
left.sort()
right.sort()
for i in range(len(left)):
    res += abs(left[i] - right[i])

print(res)

# Part 2: 23963899

res = 0
for n in left: 
    res += n * len(list(filter(lambda x: x == n, right)))

print(res)