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Plus_Minus.java
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58 lines (45 loc) · 1.69 KB
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/*
Given an array of integers, calculate the ratios of its elements that are positive, negative, and zero. Print the 6 decimal value of each fraction on a new line with places after the decimal.
*/
import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;
public class Solution {
// Complete the plusMinus function below.
static void plusMinus(int[] arr) {
float result[];
result = new float[3];
//in this for loop we are calculating that how many positive, negative and zero numbers. 0 index for positive, 1 index for negative, 2 index for zero numbers.
for(int i : arr){
if(i>0){
result[0] ++;
}else if(i<0){
result[1] ++;
}else{
result[2] ++;
}
}
//in this for loop we are dividing the number of +, - and zero numbers to length of the given array that give us to result of division as a float number.
for(float i : result){
System.out.println(i/arr.length);
}
}
private static final Scanner scanner = new Scanner(System.in);
public static void main(String[] args) {
int n = scanner.nextInt();
scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
int[] arr = new int[n];
String[] arrItems = scanner.nextLine().split(" ");
scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
for (int i = 0; i < n; i++) {
int arrItem = Integer.parseInt(arrItems[i]);
arr[i] = arrItem;
}
plusMinus(arr);
scanner.close();
}
}