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;}
};