HackerRank | 1 Week Preparation Kit | Plus Minus problem | Day 1 | Python solution
Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the decimal value of each fraction on a new line with 6 places after the decimal.
Note: This challenge introduces precision problems. The test cases are scaled to six decimal places, though answers with absolute error of up to 10^-4 are acceptable.
Example
arr = [1,1,0,-1,-1]
There are elements, two positive, two negative and one zero. Their ratios are
n = 5 elements, 2 positive, 2 negative and 1 zero. There ratios are 2/5 = 0.400000, 2/5 = 0.400000 and 1/5 = 0.200000.
Results are printed as:
0.400000
0.400000
0.200000
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