Question

How to implement the collatz sequence in Rust

Answer 1

fn collatz_sequence(mut n : i32) {
    print!("{} ", n);
    
    while n > 1 {
        if n % 2 == 0 { // even
            n = n / 2;
        }
        else { // odd
            n = 3 * n + 1;
        }
        print!("{} ", n);
    }
}
    
fn main() {
    collatz_sequence(7);
}




/*
run:

7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1 

*/

 

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