aoc2022/d10.py

import re
from string import ascii_lowercase, ascii_uppercase

EXAMPLE = """
addx 15
addx -11
addx 6
addx -3
addx 5
addx -1
addx -8
addx 13
addx 4
noop
addx -1
addx 5
addx -1
addx 5
addx -1
addx 5
addx -1
addx 5
addx -1
addx -35
addx 1
addx 24
addx -19
addx 1
addx 16
addx -11
noop
noop
addx 21
addx -15
noop
noop
addx -3
addx 9
addx 1
addx -3
addx 8
addx 1
addx 5
noop
noop
noop
noop
noop
addx -36
noop
addx 1
addx 7
noop
noop
noop
addx 2
addx 6
noop
noop
noop
noop
noop
addx 1
noop
noop
addx 7
addx 1
noop
addx -13
addx 13
addx 7
noop
addx 1
addx -33
noop
noop
noop
addx 2
noop
noop
noop
addx 8
noop
addx -1
addx 2
addx 1
noop
addx 17
addx -9
addx 1
addx 1
addx -3
addx 11
noop
noop
addx 1
noop
addx 1
noop
noop
addx -13
addx -19
addx 1
addx 3
addx 26
addx -30
addx 12
addx -1
addx 3
addx 1
noop
noop
noop
addx -9
addx 18
addx 1
addx 2
noop
noop
addx 9
noop
noop
noop
addx -1
addx 2
addx -37
addx 1
addx 3
noop
addx 15
addx -21
addx 22
addx -6
addx 1
noop
addx 2
addx 1
noop
addx -10
noop
noop
addx 20
addx 1
addx 2
addx 2
addx -6
addx -11
noop
noop
noop
"""

def clean(text: str) -> list[str]:
    return list(filter(lambda l: l.strip() != "", text.splitlines()))

def solve(lines: list[str]):
    res = 0
    inst_count = 0
    value_x = 1
    cycles = [20, 60, 100, 140, 180, 220]
    for i, line in enumerate(lines):
        inst_count_before = inst_count
        addx = 0
        if line.startswith("noop"):
            inst_count += 1
        elif line.startswith("addx"):
            v = int(line.split()[1])
            value_x += v
            inst_count += 2
            addx = v
        else:
            raise Exception("Unexpected {line}")

        for c in cycles:
            if inst_count_before < c and inst_count >= c:
                strength = (value_x - addx) * c
                res += strength
                print(inst_count, strength)
    # 15:10
    return res

def solve2(lines: list[str]):
    x_values = [1]
    for _, line in enumerate(lines):
        if line.startswith("noop"):
            x_values.append(x_values[-1])
        elif line.startswith("addx"):
            x_values.append(x_values[-1])
            v = int(line.split()[1])
            x_values.append(x_values[-1] + v)

    s = ""
    for i, x in enumerate(x_values):
        col = i % 40
        if col == 0:
            s += "\n"
        if col == x - 1 or col == x or col == x + 1:
            s += "#"
        else:
            s += " "
    print(s)
    # 25:20


def main():
    example = clean(EXAMPLE)
    print("Example  1:", solve(example))

    data = clean(open("i10.txt").read())
    print("Solution 1:", solve(data))

    data = clean(open("i10.txt").read())
    print("Solution 2:", solve2(data))

if __name__ == "__main__":
    main()