adventofcode-2023/day_01/solution_01.nim

import std/[re, strutils]

var res = 0

for line in readFile("input_01.txt").splitLines:
    if line.strip.len > 0:
        var digits = findAll(line, re"\d")
        var number = parseInt(digits[0] & digits[^1])
        res += number
        #echo $digits, $number

echo "Result: ", $res