Copy And Reverse The Array

Posted: 29 Dec, 2020
Difficulty: Easy

PROBLEM STATEMENT

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You are given an array 'ARR' consisting of 'N' non-negative integers, your task is to copy the elements of 'ARR' into another array 'COPY_ARR' in reverse order.

For example:

If 'ARR' contains the following elements [ 1, 2, 3, 4, 5 ], then you should return another array that is equal to [ 5, 4, 3, 2, 1].
Input Format :
The first line of the input contains a single integer T, denoting the number of test cases.

The first line of each test case contains a single integer N, denoting the length of the array 'ARR'.

The second line of each test case contains N space-separated integers, denoting the elements of the array.
Output Format :
For each test case print, N space-separated integers, where the ith integer denotes the ith element of the array 'COPY_ARR'.
Note:
You do not need to print anything. It has already been taken care of. Just implement the given function.
Constraints :
1 <= T <= 10^2
1 <= N <= 10^4
0 <= ARR[i] <= 10^9

Time Limit: 1 sec
Approach 1
  1. Declare a new array COPY_ARR of length equal to that of ARR, let the length be N.
  2. Iterate the array ARR and copy the value at ith position in ARR to N-i-1 th position in COPY_ARR. That is COPY_ARR[N-i-1] = ARR[i]
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