Sort Array By Parity II
Given an array of integers nums, half of the integers in nums are odd, and the other half are even.
Sort the array so that:
- whenever
nums[i]is odd,iis odd - whenever
nums[i]is even,iis even
Return any answer array that satisfies this condition.
Follow Up: Could you solve it in-place?
Example 1
Input
nums = [4,2,5,7]Output
[4,5,2,7]The returned array satisfies the condition because even values are at even indices and odd values are at odd indices; other valid answers such as [4,7,2,5], [2,5,4,7], and [2,7,4,5] would also be accepted.
Example 2
Input
nums = [2,3]Output
[2,3]The even number 2 is at index 0 and the odd number 3 is at index 1.
Constraints
- 2 <= nums.length <= 2 * 10^4
- nums.length is even.
- Half of the integers in nums are even.
- 0 <= nums[i] <= 1000