Day 7: Arrays

                   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, , of  integers, print 's elements in reverse order as a single line of space-separated numbers.

Input Format

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

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

Code:

C++:

#include <algorithm>

#include <iostream>

using namespace std;

int main() {

    int N;

    cin >> N;

    int arr[N];

    for (int i = 0; i < N; i++) {

        cin >> arr[i];

    }

    reverse(arr, arr + N);

    for (int i = 0; i < N; i++) {

        cout << arr[i] << " ";

    }

    return 0;

}

Java:

import java.util.Scanner;

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();

        }

        for (int i = 0; i < n; i++) {

            int idx = n - i - 1;

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

        }

       in.close();   

}}

Python:

input()

arr = str(input()).split(" ")

arr.reverse()

for num in arr:

    print(num + " ", end="")