Сортировка подсчётом

import java.util.Scanner;

public class Main {

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

        int n;
        n = in.nextInt();

        int[] a = new int[n];
        int min = Integer.MAX_VALUE;
        int max = Integer.MIN_VALUE;
        for (int i = 0; i < n; i++) {
            a[i] = in.nextInt();
            min = Math.min(a[i], min);
            max = Math.max(a[i], max);
        }

        int[] b = new int[max - min + 2];

        for (int i = 0; i < n; i++) {
            b[a[i] - min]++;
        }

        for (int i = 0; i < max - min + 1; i++)
            for (int j = 0; j < b[i]; j++)
                System.out.print(i + min + " ");
        in.close();
    }
}