Array -DS

Array -DS || Hackerrank Solution

An array is a type of data structure that stores elements of the same type in a contiguous block of memory. In an array, A , of size  N, each memory location has some unique index, i (where 0 ≤ i < N), that can be referenced as A[i] or Ai .

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

A = [1,2,3]

Return  [3,2,1].

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, N, the number of integers in  A.
The second line contains N space-separated integers that make up A .

Constraints

• 1  ≤ N ≤ 10^3
• 1 ≤ A[i] ≤ 10^4, where A[i] is the i integer in A             

Sample Input 1

4

1 4 3 2

Sample output

2 3 4 1

Solution

#include <assert.h>
#include <limits.h>
#include <math.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(){
    int i,n;
    scanf("%d",&n);
    int a[n];
    for(i=0;i<n;i++){
        scanf("%d",&a[i]);
    }
    for(i=n-1;i>=0;i--){
        printf("%d ",a[i]);
    }
    return 0;
}