Question

How to check if a sequence of numbers is a Geometric progression (consecutive ratios are the same) in Rust

Answer 1

fn is_geometric_progression(arr: &[i32]) -> bool {
    let size = arr.len();
    
    if size == 1 {
        return true;
    }

    let ratio = arr[1] / arr[0];

    for i in 1..size {
        if arr[i] / arr[i - 1] != ratio {
            return false;
        }
    }

    true
}

fn main() {
    let arr = [9, 27, 81, 243, 729, 2187];

    println!("{}", if is_geometric_progression(&arr) { "Yes" } else { "No" });
}


  
/*
run:

Yes

*/

 

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