1470. Shuffle the Array

Easy
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

解題

func shuffle(nums []int, n int) []int {
ans := make([]int, 0)
for i:=0; i<n; i++ {
ans = append(ans, nums[i])
ans = append(ans, nums[i + n])
}
​
return ans
}