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Given the array nums consisting of 2n elements in the form [x1,x2,...,xn,y1,y2,...,yn].
Return the array in the form [x1,y1,x2,y2,...,xn,yn].
Example 1:
Input: nums = [2,5,1,3,4,7], n = 3
Output: [2,3,5,4,1,7]
Explanation: Since x1=2, x2=5, x3=1, y1=3, y2=4, y3=7 then the answer is [2,3,5,4,1,7].Example 2:
Input: nums = [1,2,3,4,4,3,2,1], n = 4
Output: [1,4,2,3,3,2,4,1]Example 3:
Input: nums = [1,1,2,2], n = 2
Output: [1,2,1,2]Constraints:
1 <= n <= 500
nums.length == 2n
1 <= nums[i] <= 10^3
Example 1
[1,1,2,2],2[1,2,1,2]Example 2
[1,2,3,4,4,3,2,1],4[1,4,2,3,3,2,4,1]Example 3
[2,5,1,3,4,7],3[2,3,5,4,1,7][1,1,2,2],2
[1,2,1,2]