Day 7: Arrays In Java | 30 Days Of Code | Hackerrank Programming Solutions

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Link for the Problem – Day 7: Arrays – Hacker Rank Solution 

Day 7: Arrays – Hacker Rank Solution

Problem:

Objective
Today, we will learn about the Array data structure. Check out the Tutorial tab for learning materials and an instructional video.

Task
Given an array, , of  integers, print ‘s elements in reverse order as a single line of space-separated numbers.

Example

Print 4 3 2 1. Each integer is separated by one space.

Input Format

The first line contains an integer,  (the size of our array).
The second line contains  space-separated integers that describe array ‘s elements.

Constraints

Constraints

  • , where  is the  integer in the array.

Output Format

Print the elements of array  in reverse order as a single line of space-separated numbers.

Sample Input

4
1 4 3 2

Sample Output

2 3 4 1
Day 7: Arrays – Hacker Rank Solution
import java.util.Scanner;

/**
 * @author Techno-RJ
 *
 */
public class Day7Arrays {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		int[] arr = new int[n];
		for (int i = 0; i < n; i++) {
			arr[i] = in.nextInt();
		}
		in.close();
		for (int i = n - 1; i >= 0; i--) {

			System.out.print(arr[i] + " ");
		}
	}
}

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