[HackerRank] Day 7: Arrays

Objective

Today, we're learning about the Array data structure. Check out the Tutorial tab for learning materials and an instructional video!

 

Task

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

 

Input Format

The first line contains an integer, N (the size of our array).

The second line contains N space-separated integers describing array A's elements.

 

Constraints

- 1 <= N <= 1000

- 1 <= Ai <= 100000, where Ai is the i'th integer in the array.

 

Output Format

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

 

Sample Input

4 1 4 3 2 

 

Sample Output

2 3 4 1

 

---

 

import java.io.*;
import java.util.*;

public class Solution {

	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();
		}
		int[] arrResult = new int[n];
		for (int tmp = 0; tmp < arr.length; tmp++)
			arrResult[n - tmp - 1] = arr[tmp];
		for (int tmps = 0; tmps < arrResult.length; tmps++) {
			System.out.print(arrResult[tmps]);
			if(tmps != arrResult.length-1)
				System.out.print(" ");
			in.close();
		}
	}
}

 

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