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PlusMinus.java
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PlusMinus.java
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// https://www.hackerrank.com/challenges/plus-minus
import java.util.Scanner;
public class PlusMinus {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int n = in.nextInt();
int arr[] = new int[n];
for(int arr_i=0; arr_i < n; arr_i++){
arr[arr_i] = in.nextInt();
}
in.close();
// tol to hold number of -ve numbers, +ve numbers and zeros.
double[] tol = new double[3];
for(int arr_i=0; arr_i < n; arr_i++){
if(arr[arr_i] < 0) {
tol[0]++;
} else if (arr[arr_i] > 0) {
tol[1]++;
} else {
tol[2]++;
}
}
System.out.printf("%.6f\n", tol[0]/n);
System.out.printf("%.6f\n", tol[1]/n);
System.out.printf("%.6f\n", tol[2]/n);
}
}