leetcode 1470.重新排列数组

1.题目要求:

2.题目代码:

class Solution {
public:
    vector<int> shuffle(vector<int>& nums, int n) {
        vector<int> x_array(nums.begin(),nums.begin() + n);
        vector<int> y_array(nums.begin() + n,nums.end());
        int x_index = 0;
        int y_index = 0;
        for(int i = 0;i < nums.size();i++){
            if(i % 2 == 0){
                nums[i] = x_array[x_index];
                x_index++;
            }else{
                nums[i] = y_array[y_index];
                y_index++;
            }
        }
        return nums;
    }
};