Array Reversal (Hackerrank Solution) Week 12

Array Reversal in C (Hackerrank Solution) Week 12

Given an array, of size , reverse it.

Example: If array, , after reversing it, the array should be, .

Input Format

The first line contains an integer, , denoting the size of the array. The next line contains space-separated integers denoting the elements of the array.

Constraints

, where is the element of the array.

Output Format

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

Sample Input 0

6
16 13 7 2 1 12

Sample Output 0

12 1 2 7 13 16

Explanation 0

Given array, = . After reversing the array, =

Sample Input 1

7
1 13 15 20 12 13 2

Sample Output 1

2 13 12 20 15 13 1

Sample Input 2

8
15 5 16 15 17 11 5 11

Sample Output 2

11 5 11 17 15 16 5 15

Code

#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>

int main()
{
    int num, *arr, i;
    scanf("%d", &num);
    arr = (int*) malloc(num * sizeof(int));
    for(i = 0; i < num; i++) {
        scanf("%d", arr + i);
    }

    for(i = num-1; i>-1; i--)
        printf("%d ", *(arr + i));
        
    return 0;
}

Array Reversal (Hackerrank Solution) Week 12

Code

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