알고리즘 문제/Leetcode

922. Sort Array By Parity II

BEstyle 2022. 12. 22. 17:08

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, i is odd, and whenever nums[i] is even, i is even.

Return any answer array that satisfies this condition.

 

Example 1:

Input: nums = [4,2,5,7]
Output: [4,5,2,7]
Explanation: [4,7,2,5], [2,5,4,7], [2,7,4,5] would also have been accepted.

Example 2:

Input: nums = [2,3]
Output: [2,3]

 

Constraints:

  • 2 <= nums.length <= 2 * 104
  • nums.length is even.
  • Half of the integers in nums are even.
  • 0 <= nums[i] <= 1000

 

Follow Up: Could you solve it in-place?

 


#https://leetcode.com/problems/sort-array-by-parity-ii/

class Solution:
    def sortArrayByParityII(self, nums: List[int]) -> List[int]:
        no=1
        ne=0
        alist=[0]*len(nums)
        print(alist)

        for i in nums:
            if i%2==0:
                alist[ne]=i
                ne+=2
            else:
                alist[no]=i
                no+=2
        return alist