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200GB Challenge

Problem

Given a file of approximately 200GB, where each line is a string of characters no longer than 1KB. In this file, there are exactly two duplicate strings. You are provided with a computer that has 16GB of memory. Find a solution to identify the duplicate string as quickly as possible.

Generate challenge

Run rust script to generate:

cargo run --release <seed> <max_line> <size_in_gb> <output>
# `seed` - random seed in unsigned integer for data generation
# `max_line` - maximum size of each line in bytes
# `size_in_gb` - total file size in GB
# `output` - path to the output file

# example:
#                seed line size_in_gb output
cargo run --release 1 1024 1 random_text_file.txt

Submission

To submit your solution, follow these steps:

  1. Fork repository to your own GitHub account
  2. Create your submission folder: In your forked repository, create new directory under submission/<your_name/github_username>
  3. Create README (optional): Include a README file in your submission folder with a brief description of your approach, or instructions on how to run your solution
  4. Create Pull Request
From WeBuild with 💖

We look forward to your innovative solutions! Happy coding!