题目要求
Given an array A of non-negative integers, half of the integers in A are odd, and half of the integers are even.
Sort the array so that whenever A[i] is odd, i is odd; and whenever A[i] is even, i is even.
You may return any answer array that satisfies this condition.
题目分析及思路
题目给出一个整数数组A，其中一半是奇数，一半是偶数，要求重新排序数组，索引为奇数的是奇数，索引为偶数的是偶数。可以分别获取奇数列表和偶数列表，然后遍历索引，依次取值。
python代码
class Solution:
def sortArrayByParityII(self, A: 'List[int]') -> 'List[int]':
odd = [i for i in A if i % 2 == 1]
even = [i for i in A if i % 2 == 0]
res = []
for i in range(len(A)):
if i % 2 == 1:
res.append(odd.pop())
else:
res.append(even.pop())
return res