Arrays - DS HackerRank Solution

 

Problem Statement

An array is a type of data structure that stores elements of the same type in a contiguous block of memory. In an array, , of size , each memory location has some unique index,  (where ), that can be referenced as  or .

Reverse an array of integers.

Note: If you've already solved our C++ domain's Arrays Introduction challenge, you may want to skip this.

Example

Return .

Function Description

Complete the function reverseArray in the editor below.

reverseArray has the following parameter(s):

• int A[n]: the array to reverse

Returns

• int[n]: the reversed array

Input Format

The first line contains an integer, , the number of integers in .
The second line contains  space-separated integers that make up .

Solution Program

[C++]

#include <cmath>

#include <cstdio>

#include <vector>

#include <iostream>

#include <algorithm>

using namespace std;

int main() {

            int N;

            cin>>N;

   

            vector<int> arr(N);

   

            for (int i=0;i<N;i++)

                cin>>arr[i];

   

            reverse(arr.begin(),arr.end());

   

                for (int i=0;i<N;i++)

                cout<<arr[i]<<" ";

   

            return 0;

}

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