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The Rust Programming Language in a Day: Task #1 - The Lottery

Task description

Write a command line tool that takes a list of numbers for international lotteries, eg. 6 out of 45, 6 out of 49, 5 out of 50, etc.

  • cargo run -- 6 45 means to take 6 out of 45
  • This will yield 6 random numbers out of a pot of 45 numbers
  • Write a struct Lotto representing your Lotto results
  • Write a function format_lotto_results that formats your lotto results for pretty printing
  • Make sure you adhere ownership and borrowing rules
  • Bonus: Allow for multiple runs. E.g. cargo run -- 6 45 6 49 5 50 does three runs: 6 out of 45, 6 out of 49, 5 out of 50
  • Use the rand crate for random number generation (this might be helpful)

Working with Codespaces

  1. Fork this repo
  2. On the upper right corner, there is a button named Code
  3. Click the Code button and click "New codespace"
  4. A new codespace for you pops up. You can reuse this codespace after creation.

You are all set up with VSCode, Rust, a Terminal, etc.

See more about [Codespaces](GitHub Codespaces)

Tests and execution

  1. Run the tests with cargo test. All tests need to pass!

  2. Run the app with cargo run -- 6 45. This should be the desired output

6 of 45: [31, 29, 38, 4, 21, 24]

With the numbers being different each time of course!

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Rust Task: Lotto Game

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