Question

How to find the maximum difference between two successive elements in an int array with Rust

Answer 1

fn max_diff(arr: &[i32]) -> Option<i32> {
    if arr.len() < 2 {
        return None; 
    }

    let mut max_diff = i32::MIN;

    for i in 1..arr.len() {
        let diff = (arr[i] - arr[i - 1]).abs();
        if diff > max_diff {
            max_diff = diff;
        }
    }

    Some(max_diff)
}

fn main() {
    let arr = [3, 1, 9, 5, 11, 13, 16]; // 1, 9 -> 8
    
    match max_diff(&arr) {
        Some(diff) => println!("{}", diff),
        None => println!("Array is too short to find a difference"),
    }
}

 
 
  
/*
run:
  
8
 
*/

 

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