hariprasath-ai / hackerrank-algorithms-warmup-plus_minus

HackerRank-Algorithms-warmup-Plus_Minus

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]

n = 5 elements, 2 positive integers, 2 negative integers, 1 zero
The ratios are 2/5 = 0.400000,
2/5 = 0.400000,
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 .

constraint

0 < n <= 100
-100 <= arr[i] <= 100

Output Format

Print the following 3 lines, each to 3 decimals:

1.proportion of positive values 2.proportion of negative values 3.proportion of zeros

Sample Input

STDIN Function
----- --------
6 arr[] size n = 6
-4 3 -9 0 4 1 arr = [-4, 3, -9, 0, 4, 1]

Sample Output

0.500000
0.333333
0.166667

Explanation

There are 3 positive numbers, 2 negative numbers, and 1 zero in the array.
The proportions of occurrence are positive: 3/6 = 0.500000,
negative: 2/6 = 0.333333,
zero: 1/6 = 0.166667