[HackerRank][Python] Arrays

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

Example

A = [1, 2, 3, 4]

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

Input Format

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

Constraints

Constraints

• 1 <= N <= 1000
• 1 <= A[i] <= 10000, where A[i] is the th square of i integer in the array.

Output Format

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

#!/bin/python3

import math
import os
import random
import re
import sys



if __name__ == '__main__':
    n = int(input().strip())

    arr = list(map(int, input().rstrip().split()))

    rev_arr = arr[::-1]
    print(*rev_arr)

 

1. First, we take the input for the size of the array, n.
2. Then, we take the input for the elements of the array as a space-separated list of integers, arr.
3. We use slicing to reverse the list arr and assign it to a new list rev_arr.
4. Finally, we print the elements of rev_arr as a single line of space-separated numbers using the print function and the unpacking operator *.