Arrays Introduction in C++ – Hacker Rank Solution | HackerRank Programming Solutions | HackerRank C++ Solutions

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Introduction To C++

C++ is a general-purpose programming language that was developed as an enhancement of the C language to include object-oriented paradigm. It is an imperative and a compiled language. 

C++ is a middle-level language rendering it the advantage of programming low-level (drivers, kernels) and even higher-level applications (games, GUI, desktop apps etc.). The basic syntax and code structure of both C and C++ are the same. 

C++ programming language was developed in 1980 by Bjarne Stroustrup at bell laboratories of AT&T (American Telephone & Telegraph), located in U.S.A. Bjarne Stroustrup is known as the founder of C++ language.

Arrays Introduction in C++

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.


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.


Sample Input

4
1 4 3 2

Sample Output

2 3 4 1
Arrays Introduction in C++ – Hacker Rank 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;
}

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