Arrays Introduction in C++ – Solution in Hacker Rank - hackerranksolutions8

 

Problem

An array is a series of elements of the same type placed in contiguous memory locations that can be individually referenced by adding an index to a unique identifier.
Declaration:

int arr[10]; //Declares an array named arr of size 10, i.e; you can store 10 integers.

Accessing elements of an array:

Indexing in arrays starts from 0.So the first element is stored at arr[0],the second element at arr[1]...arr[9]

You’ll be given an array of N integers and you have to print the integers in the reverse order.

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Input Format

The first line of the input contains N,where N is the number of integers.The next line contains N integers separated by a space.

Constraints

• 1<= N <= 1000
• 1<= Ai <= 10000 where Ai is the ith integer in the array. 

Output Format

Print the N integers of the array in the reverse order in a single line separated by a space.

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Sample Input

4
1 4 3 2

Sample Output

2 3 4 1

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Solution :-   

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#define MAX 10000
using namespace std;


int main() 
{
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */  
    int a[MAX], N,i;
    cin>>N;
    for(i=1;i<=N;i++)
    {
        cin>>a[i];
    }
    for(i=0;i<N;i++)
    {
        cout<<a[N-i]<<" ";
    } 
    return 0;
}