hackerrank-plus-minus.py

def plusMinus(arr):
    #
    # Write your code here.
    #
    n = len(arr)
    pos = 0
    neg = 0
    nada = 0
    for x in arr:
        if x > 0:
            pos += 1
        elif x < 0:
            neg += 1
        else:
            nada += 1
    print(pos/n)
    print(neg/n)
    print(nada/n)