day3.py

file = open("./day3_input", "r")
content = file.read()
strings = content.split("\n")

# find the largest number then the second largest after that

total = 0
for string in strings:
    # find first
    first_largest = 0
    second_largest = 0
    for letter in string[:-1]:
        if int(letter) > first_largest:
            first_largest = int(letter)
            # find second
    for letter2 in string[string.find(str(first_largest)) + 1:]:
        if int(letter2) > second_largest:
            second_largest = int(letter2)
    number = first_largest * 10 + second_largest
    total += number
print(total)

total = 0
def find_next(position: int, string: str):
    next = 0
    for letter in string[: (position * -1)] if position != 0 else string:
        if int(letter) > next:
            next = int(letter)
    return string.find(str(next))


for string in strings:
    origin = string
    # find first
    first = 0
    for letter in string[:-11]:
        if int(letter) > first:
            first = int(letter)
    position = string.find(str(first))
    number = string[position]
    string = string[position + 1:]
    for i in range(10, -1, -1):
        next = find_next(i, string)
        number = number + string[next]
        string = string[next + 1:]
    total += int(number)
print(total)