Rotate an array to the right
Rotate values right by nonnegative k positions, with k <= 1000000. An empty array remains empty. Inputs are valid JSON and must not be modified unless the algorithm uses a local copy. This exercise probes typed data modeling, boundary handling, and algorithm selection.
Input
One JSON value: { values: number[]; k: number }. See the sample for its exact shape.
Output
One compact JSON value of type number[]. Strings include JSON quotes; arrays preserve the specified order.
Constraints
Array/string lengths are 0 to 10000 unless stated otherwise. Numbers are integers in [-1000000,1000000]; all computed results fit the safe integer range.
Example
Input
{"values":[1,2,3,4,5],"k":2}Output
[4,5,1,2,3]
Example 2 input
{"values":[1,1,2],"k":3}Output
[1,1,2]
Checks a boundary or contrasting case beyond the public examples.
Public test cases (2)
Input
{"values":[1,2,3,4,5],"k":2}Expected output
[4,5,1,2,3]
Input
{"values":[],"k":10}Expected output
[]
Hints (2)
- Start with the required output order and the empty-input behavior.
- Reduce the rotation modulo the array length
Target complexity: time O(n) · space O(n)