day7_take1.py

import sys

# Read the input from the command line
filename = sys.argv[1]
with open(filename) as file:
    input_lines = file.readlines()

# Parse the input
directories = {}
current_directory = "/"
for line in input_lines:
    if line.startswith("$ cd"):
        # Change directory
        if line[5:].strip() == "/":
            current_directory = "/"
        elif line[5:].strip() == "..":
            current_directory = "/".join(current_directory.split("/")[:-1])
        else:
            current_directory += "/" + line[5:].strip()
    elif line.startswith("$ ls"):
        # List directory
        entries = line[5:].strip().split(" ")
        for entry in entries:
            if entry.startswith("dir"):
                # Directory
                directory_name = entry[4:]
                directories[current_directory + "/" + directory_name] = 0
            else:
                # File
                file_name, file_size = entry.split(".")
                file_size = int(file_size)
                directories[current_directory] += file_size

# Find all directories with a total size of at most 100000
total_size = 0
for directory, size in directories.items():
    if size <= 100000:
        total_size += size

# Print the result
print(total_size)