!/bin/python3

import math import os import random import re import sys

#

Complete the 'plusMinus' function below.

#

The function accepts INTEGER_ARRAY arr as parameter.

#

def plusMinus(arr): pos_num = 0 neg_num = 0 zero_num = 0

iterate over array

for num in arr:
    if num > 0:
        pos_num += 1
    elif num < 0:
        neg_num += 1
    else:
        zero_num += 1

Calculate totals

total = len(arr)
pos_ratio = pos_num/total
neg_ratio = neg_num/total
zero_ratio = zero_num/total

Print totals

print("{:.6f}".format(pos_ratio))   
print("{:.6f}".format(neg_ratio))
print("{:.6f}".format(zero_ratio))   

if name == 'main': n = int(input().strip())

arr = list(map(int, input().rstrip().split()))

plusMinus(arr)