day1.py

# Description: Advent of Code - Day 1

def replace_words(line):
    """
    Replaces words with numbers
    """
    number = ''
    new_line = ''
    for char in line:
        if ord('1') <= ord(char) <= ord('9') :
            number += char
        new_line += char
        if 'one' in new_line[-3::]:
            number += '1'
        elif 'two' in new_line[-3::]:
            number += '2'
        elif 'three' in new_line[-5::]:
            number += '3'
        elif 'four' in new_line[-4::]:
            number += '4'
        elif 'five' in new_line[-4::]:
            number += '5'
        elif 'six' in new_line[-3::]:
            number += '6'
        elif 'seven' in new_line[-5::]:
            number += '7'
        elif 'eight' in new_line[-5::]:
            number += '8'
        elif 'nine' in new_line[-4::]:
            number += '9'
    return number

def parse_line(line, find_words = False) -> int:
    """
    Recieves a line of text
    Return an int formed by the first digit in the string and the last digit in the string
    """
    line = line.strip()

    if find_words:
        line = replace_words(line)

    res = ''
    for char in line:
        if ord('1') <= ord(char) <= ord('9') :
            res = char
            break
    for char in line[::-1]:
        if ord('1') <= ord(char) <= ord('9') :
            res += char
            break
    #print(f"{line} -> {res}")
    return int(res)

if __name__ == '__main__':
    chal1 = 0
    chal2 = 0
    with open('day1.input', 'r') as f:
        for line in f.readlines():
            chal1 += parse_line(line, False)
            chal2 += parse_line(line, True)
    print(f"Challenge 1: {chal1}")
    print(f"Challenge 2: {chal2}")