Plus Minus Problem in Java | Hacker Rank Interview Preparation | One Month Preparation Kit.

Описание: This video is about Step by step explanation of Plus Minus problem on Hacker Rank.
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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 n=5 elements, two positive, two negative and one zero. Their ratios are 2/5 = 0.400000, 2/5 = 0.400000and 1/5 = 0.200000. Results are printed as:

0.400000
0.400000
0.200000
Function Description

Complete the plusMinus function in the editor below.

plusMinus has the following parameter(s):

int arr[n]: an array of integers
Print
Print the ratios of positive, negative and zero values in the array. Each value should be printed on a separate line with 6 digits after the decimal. The function should not return a value.

Input Format

The first line contains an integer,n , the size of the array.
The second line contains n space-separated integers that describe arr[n] .

Output Format

Print the following 3 lines, each to 6 decimals:

proportion of positive values
proportion of negative values
proportion of zeros

#plusminus #hackerrank #solution
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