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In this post, you will find the solution for **Array Reversal in C-HackerRank Problem**. We are providing the **correct and tested solutions** of coding problems present on **HackerRank**. If you are not able to solve any problem, then you can take help from our Blog/website.

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**C **is one of the most widely used **Programming Languages**. it is basically used to build **Operating System**. **C **was developed by **Dennis Ritchie in 1972**. Below are some examples of **C Programming** which might you understanding the **basics of C Programming.**

## Problem

Given an array, of size * n*, reverse it.

Example: If array, arr = [1,2,3,4,5], after reversing it, the array should be, arr[5,4,3,2,1].

#### Task

#### Input Format :

The first line contains an integer, * n*, denoting the size of the array. The next line contains

*space-separated integers denoting the elements of the array.*

**n**#### Constraints :

**1<=n<=1000**, where**1<=arri<=1000**is the**arri**element of the array.**ith**

#### Output Format :

The output is handled by the code given in the editor, which would print the array.

#### Sample Input 0

6161372112

#### Sample Output 0

121271316

#### Explanation 0

Given array, * arr = [16,13,7,2,1,12]*. After reversing the array,

**arr = [12,1,2,7,13,16]**#### Sample Input 1

7113152012132

#### Sample Output 1

213122015131

#### Sample Input 2

815516151711511

#### Sample Output 2

11511171516515

Array Reversal in C – Hacker Rank Solution

#include <stdio.h> #include <stdlib.h> int main() { int num, *arr,*arr2,i; scanf("%d", &num); arr = (int*) malloc(num * sizeof(int)); for(i = 0; i < num; i++) { scanf("%d", arr + i); } arr2 = (int*) malloc(num * sizeof(int)); for(i=1;i<=num;i++) { arr2[i-1] = arr[num-i]; } for(i = 0; i < num; i++) printf("%d ", *(arr2 + i)); return 0; }