Example 1
Example 2
Example 3
1 <= nums.length, index.length <= 100nums.length == index.length0 <= nums[i] <= 1000 <= index[i] <= iExample 1
Example 2
Example 3
1 <= nums.length, index.length <= 100nums.length == index.length0 <= nums[i] <= 1000 <= index[i] <= i