Formatted question description: https://leetcode.ca/all/1389.html

# 1389. Create Target Array in the Given Order (Easy)

Given two arrays of integers nums and index. Your task is to create target array under the following rules:

• Initially target array is empty.
• From left to right read nums[i] and index[i], insert at index index[i] the value nums[i] in target array.
• Repeat the previous step until there are no elements to read in nums and index.

Return the target array.

It is guaranteed that the insertion operations will be valid.

Example 1:

Input: nums = [0,1,2,3,4], index = [0,1,2,2,1]
Output: [0,4,1,3,2]
Explanation:
nums       index     target
0            0        
1            1        [0,1]
2            2        [0,1,2]
3            2        [0,1,3,2]
4            1        [0,4,1,3,2]


Example 2:

Input: nums = [1,2,3,4,0], index = [0,1,2,3,0]
Output: [0,1,2,3,4]
Explanation:
nums       index     target
1            0        
2            1        [1,2]
3            2        [1,2,3]
4            3        [1,2,3,4]
0            0        [0,1,2,3,4]


Example 3:

Input: nums = , index = 
Output: 


Constraints:

• 1 <= nums.length, index.length <= 100
• nums.length == index.length
• 0 <= nums[i] <= 100
• 0 <= index[i] <= i

Related Topics:
Array

## Solution 1.

// OJ: https://leetcode.com/problems/create-target-array-in-the-given-order/

// Time: O(N^2)
// Space: O(1)
class Solution {
public:
vector<int> createTargetArray(vector<int>& nums, vector<int>& index) {
vector<int> ans;
int N = nums.size();
for (int i = 0; i < N; ++i) {
ans.insert(ans.begin() + index[i], nums[i]);
}
return ans;
}
};


Java

class Solution {
public int[] createTargetArray(int[] nums, int[] index) {
List<Integer> list = new ArrayList<Integer>();
int length = nums.length;
for (int i = 0; i < length; i++)