Amazon Question - 3 Rotate Array

Given an array of size N, rotate it by D elements. 

Input: 
The first line of the input contains T denoting the number of testcases. First line of test case is the number of elements N, next line contains D. Subsequent line will be the array elements.

Output: 
For each testcase, in a new line, output the rotated array.

Constraints:
1 <= T <= 200
1 <= N <= 107
1 <= D <= N
1 <= arr[i] <= 103

Example:
Input:
2
5 2
1 2 3 4 5 
10 3
2 4 6 8 10 12 14 16 18 20

Output:
3 4 5 1 2
8 10 12 14 16 18 20 2 4 6

Code C - Language : 

#include<stdio.h>

int main() {

//code

int tc,n,i,j,d;

scanf("%d",&tc);

while(tc--){

    scanf("%d",&n);

    scanf("%d",&d);

    int a[n];

    

    for(i=0;i<n;i++)

    scanf("%d",&a[i]);

    

    for(i=d;i<n;i++)

    printf("%d ",a[i]);

    

    for(i=0;i<d;i++)

    printf("%d ",a[i]);

    printf("\n");

    

    

}

return 0;

}