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Puzzle 24: Explanation

Explore the multiple uses of the .. symbol in Rust, including range creation and ignored parameters. Learn how to effectively use range expressions and Rust's todo! macro for placeholders, helping you write clearer and functional Rust code.

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Test it out

Press “Run” to see the output of the code.

C++
fn main() {
    .. .. ..;
}

Explanation

The .. symbol has a few meanings in Rust:

  • The .. symbol without numbers indicates a range containing every available value.

  • The statement 1..3 creates a ...