advent_of_code_2025/day1.py at main · Squidtyper/advent_of_code_2025 · GitHub

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import math

file = open("./day1_input", "r")
content = file.read()
strings = content.split("\n")

steps = [(string[:1], string[1:]) for string in strings]

dial = 50
key = 0

for step in steps:
    if step[0] == "L":
        dial = dial - int(step[1])
    elif step[0] == "R":
        dial = dial + int(step[1])
    dial = dial % 100
    if dial == 0:
        key += 1


print("easy mode:", key)

dial = 50
key = 0

for step in steps:
    if step[0] == "L":
        if int(step[1]) >= dial and dial != 0:
            key += 1
        dial = dial - int(step[1])
    elif step[0] == "R":
        dial = dial + int(step[1])
    key = key + math.floor(abs(dial) / 100)
    dial = dial % 100


print("hard mode:", key)