Class Solution

java.lang.Object
g1901_2000.s1929_concatenation_of_array.Solution

public class Solution extends Object
1929 - Concatenation of Array\. Easy Given an integer array `nums` of length `n`, you want to create an array `ans` of length `2n` where `ans[i] == nums[i]` and `ans[i + n] == nums[i]` for `0 <= i < n` ( **0-indexed** ). Specifically, `ans` is the **concatenation** of two `nums` arrays. Return _the array_ `ans`. **Example 1:** **Input:** nums = [1,2,1] **Output:** [1,2,1,1,2,1] **Explanation:** The array ans is formed as follows: - ans = [nums[0],nums[1],nums[2],nums[0],nums[1],nums[2]] - ans = [1,2,1,1,2,1] **Example 2:** **Input:** nums = [1,3,2,1] **Output:** [1,3,2,1,1,3,2,1] **Explanation:** The array ans is formed as follows: - ans = [nums[0],nums[1],nums[2],nums[3],nums[0],nums[1],nums[2],nums[3]] - ans = [1,3,2,1,1,3,2,1] **Constraints:** * `n == nums.length` * `1 <= n <= 1000` * `1 <= nums[i] <= 1000`
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • getConcatenation

      public int[] getConcatenation(int[] nums)