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1304. Find N Unique Integers Sum up to Zero

Given an integer n, return any array containing n unique integers such that they add up to 0.

• Example 1:
  IInput: n = 5
  Output: [-7,-1,1,3,4]
  Explanation: These arrays also are accepted [-5,-1,1,2,3] , [-3,-1,2,-2,4].

• Example 2:
  Input: n = 3
  Output: [-1,0,1]

• Example 3:
  Input: n = 1
  Output: [0]

var sumZero = function(n) {
    let result =[]
    if(n % 2 === 1) {
      result.push(0)
    }
    for(let i = 1; i <= n/2; i++) {
      result.push(i, -i)
    }
    return result
};