LeetCode 1389: Create Target Array in the Given Order Solution
Master LeetCode problem 1389 (Create Target Array in the Given Order), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
1389. Create Target Array in the Given Order
Problem Explanation
Explanation:
To solve this problem, we can simulate the process of inserting elements from the given nums array into the target array at specific indices as specified by the index array.
We iterate through the nums array and for each element, we insert it into the target array at the corresponding index specified in the index array. We shift the elements in the target array to the right to make space for the new element.
The time complexity of this approach is O(n^2) where n is the length of the nums array since in the worst case, we may need to shift all elements to the right for each insertion. The space complexity is O(n) where n is the length of the nums array to store the target array.
:
Solution Code
class Solution {
public int[] createTargetArray(int[] nums, int[] index) {
List<Integer> target = new ArrayList<>();
for (int i = 0; i < nums.length; i++) {
target.add(index[i], nums[i]);
}
return target.stream().mapToInt(Integer::intValue).toArray();
}
}Try It Yourself
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