Write a function called rotate which takes an array and a number, and moves each element however many spaces the number is to the right. For the value at the end of the array, rotate should move it back to the beginning. code example
Example 1: array rotation program in java
static void rotLeft(int[] a, int d)
{
int [] n = new int[a.length];
for(int i = 0; i < a.length; i++)
{
int newlocation = (i+(a.length - d))% a.length;
n[newlocation] = a[i];
}
for(int i = 0; i < a.length; i++)
{
System.out.print(n[i]+ " ");
}
}
Example 2: rorate array
function rotateArray(A, K) {
if (!A.length) return A;
let index = -1;
while (++index < K) {
A.unshift(A.pop());
}
return A;
}
[
rotateArray([3, 8, 9, 7, 6], 3),
rotateArray([0, 0, 0], 1),
rotateArray([1, 2, 3, 4], 4),
rotateArray([], 4),
].join(' | ');