Question

How to check if a sequence of numbers is an Arithmetic progression (consecutive differences are the same) in Rust

Answer 1

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

    let mut arr = arr.to_vec();
    arr.sort();

    let difference = arr[1] - arr[0];
    for i in 2..size {
        if arr[i] - arr[i - 1] != difference {
            return false;
        }
    }

    true
}

fn main() {
    let arr = vec![10, 20, 15, 5, 25, 35, 30];
    
    println!("{}", if is_arithmetic_progression(&arr) { "Yes" } else { "No" });
}


  
/*
run:

Yes

*/

 

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