LeetCode 1389. 按既定顺序创建目标数组

示例 1：
输入：nums = [0,1,2,3,4], index = [0,1,2,2,1]
输出：[0,4,1,3,2]
解释：
nums       index     target
0            0        [0]
1            1        [0,1]
2            2        [0,1,2]
3            2        [0,1,3,2]
4            1        [0,4,1,3,2]

示例 2：
输入：nums = [1,2,3,4,0], index = [0,1,2,3,0]
输出：[0,1,2,3,4]
解释：
nums       index     target
1            0        [1]
2            1        [1,2]
3            2        [1,2,3]
4            3        [1,2,3,4]
0            0        [0,1,2,3,4]

示例 3：
输入：nums = [1], index = [0]
输出：[1]
 
提示：
1 <= nums.length, index.length <= 100
nums.length == index.length
0 <= nums[i] <= 100
0 <= index[i] <= i

class Solution {
public:
    vector<int> createTargetArray(vector<int>& nums, vector<int>& index) {
    	vector<int> ans;
    	for(int i = 0; i < nums.size(); ++i)
    	{
    		ans.insert(ans.begin()+index[i], nums[i]);
    	}
    	return ans;
    }
};