- Difficulty: Medium
- Tags: LeetCode, Medium, Array, Math, Divide and Conquer, leetcode-932, O(n)
Problem
An array nums of length n is beautiful if:
numsis a permutation of the integers in the range[1, n].- For every
0 <= i < j < n, there is no indexkwithi < k < jwhere2 * nums[k] == nums[i] + nums[j].
Given the integer n, return any beautiful array nums of length n. There will be at least one valid answer for the given n.
Example 1:
Input: n = 4 Output: [2,1,4,3]
Example 2:
Input: n = 5 Output: [3,1,2,5,4]
Constraints:
1 <= n <= 1000