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Stdle #147 · scope · 2026-10-31

What does this Rust snippet output?

A past puzzle — fully playable. 4 attempts, hints on wrong guesses.

fn main() {
    let n = 3;
    let n = n + 1;
    {
        let n = n * 10;
        println!("{}", n);
    }
    println!("{}", n);
}
Scope
2 lines
4 attempts left

Answer & explanation