StyleInCode

""" day_13_01.py """

# usage: python3 day_13_01.py < input

import re
import sys


def cost(claw):
    """ solve per puzzle description """
    costs = [3 * a + b for a in range(100) for b in range(100)
             if (a * int(claw[0][0]) + b * int(claw[1][0]),
                 a * int(claw[0][1]) + b * int(claw[1][1])) ==
             (int(claw[2][0]), int(claw[2][1]))]
    return min(costs) if costs else 0


total = 0
with sys.stdin as infile:
    machines_left = True
    while machines_left:
        machine = [re.findall(r'\d+', infile.readline()) for _ in range(3)]
        total += cost(machine)
        machines_left = infile.readline() != ''

print(total)

""" day_13_02.py """

# usage: python3 day_13_02.py < input

import re
import sys


def cost(claw):
    """ two equations in two variables """
    xa, ya = claw[0][0], claw[0][1]
    xb, yb = claw[1][0], claw[1][1]
    x, y = claw[2][0] + 10000000000000, claw[2][1] + 10000000000000

    b = (x / xa - y / ya) / (xb / xa - yb / ya)
    if abs(b - round(b)) > 0.0001:
        return 0
    a = (x - b * xb) / xa

    return 3 * round(a) + round(b)


total = 0
with sys.stdin as infile:
    machines_left = True
    while machines_left:
        machine = [(int(x), int(y)) for x, y in
                   [re.findall(r'\d+', infile.readline()) for _ in range(3)]]
        total += cost(machine)
        machines_left = infile.readline() != ''

print(total)