01. Count Real Numbers

package Lekcii;

import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;

public class CountRealNumbers {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        String input = scanner.nextLine();
        scanner.close();

        String[] numbers = input.split("\\s+");
        Map<Double, Integer> occurrences = new TreeMap<>();

        for (String number : numbers) {
            double num = Double.parseDouble(number);
            occurrences.put(num, occurrences.getOrDefault(num, 0) + 1);
        }

        for (Map.Entry<Double, Integer> entry : occurrences.entrySet()) {
            String formattedNumber = String.format("%.0f", entry.getKey());
            System.out.println(formattedNumber + " -> " + entry.getValue());
        }
    }
}