/*
 * Complete the 'plusMinus' function below.
 *
 * The function accepts INTEGER_ARRAY arr as parameter.
 */

fn plusMinus(arr: &[i32]) {
    let pos_count :f64 = arr 
        .into_iter()
        .filter(|&x| (*x > (0 as i32)))
        .count() as f64;
    
    let zero_count :f64 = arr
        .into_iter()
        .filter(|&x| (*x == (0 as i32)))
        .count() as f64;
        
    println!("{:.6}\n{:.6}\n{:.6}",
        pos_count / arr.len() as f64,
        ( arr.len() as f64 - (pos_count + zero_count) ) / arr.len() as f64,
        zero_count / arr.len() as f64,
    );
}