aoc_2025_day_03.pai

# https://adventofcode.com/2025/day/3

require string using string.split
require file using file.stdin

let total_joltage = 0

until eof do
    let batteries = ${call stdin}

    let possible_first_digits = {int(i) for i in batteries.\split(batteries.len() - 1)[1].split('')}
    let first_digit_index = {possible_first_digits.index(possible_first_digits.max())}

    let lhs rhs = {batteries.\split(first_digit_index)}
    let first_digit = {max(int(i) for i in lhs.split(''))}
    let second_digit = {max(int(i) for i in rhs.split(''))}

    let largest_joltage = {int(first_digit & second_digit)}
    let total_joltage += {largest_joltage}
end

print {total_joltage}