Question

How to count backwards (Print the numbers N, N - 1, ..., 0 (included)) in Rust

Answer 1

fn main() {
    let n = 5;

    for i in (0..=n).rev() {
        print!("{} ", i);
    }
}


     
/*
run:

5 4 3 2 1 0 
   
*/
  

 

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Answer 2

fn main() {
    let n = 5;

    (0..=n).rev().for_each(|i| print!("{} ", i));
}


     
/*
run:

5 4 3 2 1 0 
   
*/

 

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