AoC &#- Day 仔细考虑（C# 和 Python）

void part1(){    const string regex = @"mul([0-9]{1,3},[0-9]{1,3})";    var matches = regex.matches(input, regex);    var total = 0;    foreach (match match in matches)    {        var numbers = getnumbers(match);        total += numbers[0] * numbers[1];    }}int[] getnumbers(match match){    var numbers = regex.matches(match.value, "\d{1,3}");    var a = int.parse(numbers[0].value);    var b = int.parse(numbers[1].value);    return [a, b];}

using system.text.regularexpressions;var input = file.readalltext("./input1.txt");// var input = @"xmul(2,4)&mul[3,7]!^don't()_mul(5,5)+mul(32,64](mul(11,8)undo()?mul(8,5))";part1();part2();return;void part1(){    const string regex = @"mul([0-9]{1,3},[0-9]{1,3})";    var matches = regex.matches(input, regex);    var total = 0;    foreach (match match in matches)    {        var numbers = getnumbers(match);        total += numbers[0] * numbers[1];    }    console.writeline("total: " + total);}void part2(){    const string regex = @"do()|don't()|mul([0-9]{1,3},[0-9]{1,3})";    var matches = regex.matches(input, regex);    // at the start, mul instructions are enabled    var isenabled = true;    var total = 0;    // loop over the matches (e.g do(), dont() or mul(x, y)    foreach (match match in matches)    {        switch (match.value)        {            case "do()":                isenabled = true;                break;            case "don't()":                isenabled = false;                break;            default:            {                if (match.value.startswith("mul") && isenabled)                {                    var numbers = getnumbers(match);                    total += numbers[0] * numbers[1];                }                break;            }        }    }    console.writeline("total: " + total);}int[] getnumbers(match match){    var numbers = regex.matches(match.value, "\d{1,3}");    var a = int.parse(numbers[0].value);    var b = int.parse(numbers[1].value);    return [a, b];}

import re# Read input from filewith open("./input1.txt", "r") as file:    input_text = file.read()# Part 1def part1():    regex = r"mul(d{1,3},d{1,3})"    matches = re.findall(regex, input_text)    total = 0    for match in matches:        a, b = get_numbers(match)        total += a * b    print(f"Total: {total}")# Part 2def part2():    regex = r"do()|don't()|mul(d{1,3},d{1,3})"    matches = re.findall(regex, input_text)    is_enabled = True  # At the start, mul instructions are enabled    total = 0    for match in matches:        if match == "do()":            is_enabled = True        elif match == "don't()":            is_enabled = False        elif match.startswith("mul") and is_enabled:            a, b = get_numbers(match)            total += a * b    print(f"Total: {total}")# Helper function to extract numbers from a matchdef get_numbers(match):    numbers = re.findall(r"d{1,3}", match)    return int(numbers[0]), int(numbers[1])# Execute partspart1()part2()