Rust

fn plusMinus(arr: &[i32]) {
    
    let mut a = 0;
    let mut b = 0;
    let mut c = 0;
    
    for i in 0..arr.len(){
            if arr[i] == 0 {
                a += 1
            }
            
            if arr[i] > 0{
                b += 1
            }
            
            if arr[i] < 0{
                c += 1
            }
           
        };
    let len_float = arr.len() as f64;
    let calc_a = a as f64 / len_float;
    let calc_b = b as f64 / len_float;
    let calc_c = c as f64 / len_float;
    
    println!("{:.6}", calc_b);
    println!("{:.6}", calc_c);
    println!("{:.6}", calc_a);
}
  

Great explanation of how to calculate the positive, negative, and zero ratios in an array. I like how clearly the logic was presented. It reminds me of how precision and ratio handling are important in simulation games like Car Parking Multiplayer too

Could not shorten this further

def plusMinus(arr):
    arr = [i/abs(i) if i != 0 else 0 for i in arr]
    print(float(arr.count(1))/float(len(arr)), "\n", float(arr.count(-1))/float(len(arr)), "\n",float(arr.count(0))/float(len(arr)))

simple java code from scratch

public static void plusMinus(List arr) { // Write your code here int plus=0,minus=0,zero=0,total=0; for(int x:arr) { if(x<0) minus++; else if(x==0) zero++; else if(x>0) plus++; total++;
} double positive=(double)plus/total, negative=(double)minus/total, Zero=(double)zero/total;
System.out.println(String.format("%.6f",positive)); System.out.println(String.format("%.6f",negative)); System.out.println(String.format("%.6f",Zero)); }