HackerrankPsAlgorithms0075.java

import java.io.*;
import java.util.*;
import java.util.stream.*;
import static java.util.stream.Collectors.toList;

public class HackerrankPsAlgorithms0075 {

	// Insertion Sort - Part 2
	// https://www.hackerrank.com/challenges/insertionsort2/problem?isFullScreen=true

	static class Result {

		public static void insertionSort2(int n, List<Integer> arr) {
			for (int i = 1; i < n; i++) {
				int key = arr.get(i);
				int j = i - 1;
				while (j >= 0 && arr.get(j) > key) {
					arr.set(j + 1, arr.get(j));
					j--;
				}
				arr.set(j + 1, key);
				System.out.println(arr.stream().map(String::valueOf).collect(Collectors.joining(" ")));
			}
		}
	
	}
	

	public static void main(String[] args) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

        int n = Integer.parseInt(bufferedReader.readLine().trim());

        List<Integer> arr = Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
            .map(Integer::parseInt)
            .collect(toList());

        Result.insertionSort2(n, arr);

        bufferedReader.close();
    }

}