922_SortArrayByParityII - a920604a/leetcode GitHub Wiki

class Solution {
public:
    vector<int> sortArrayByParityII(vector<int>& nums) {
        int n = nums.size() ,  l = 0, r = 1;
        vector<int> ret(n,0);
        for(int i = 0;i<n;++i){
            if(nums[i]%2==0){
                ret[l] = nums[i];
                l+=2;
            }
            else{
                ret[r] = nums[i];
                r+=2;
            }
        }
        return ret;
    }
};