Leetcode - Shuffle the Array Solution — The Poor Coder

Given the array nums consisting of 2n elements in the form [x₁,x₂,...,x_n,y₁,y₂,...,y_n].

Return the array in the form [x₁,y₁,x₂,y₂,...,x_n,y_n].

Example 1:

Text

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:

Text

Input: nums = [1,2,3,4,4,3,2,1], n = 4
Output: [1,4,2,3,3,2,4,1]

Example 3:

Text

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

Solution in Python#

Python

class Solution:
    def shuffle(self, nums: List[int], n: int) -> List[int]:
        arr = []
        for i in range(n):
            arr.extend((nums[i],nums[i+n]))
        return arr

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Solution in Python#

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