Add solution #1304

Author: JoshCrozier

solutions/1304-find-n-unique-integers-sum-up-to-zero.js

@@ -0,0 +1,20 @@
+/**
+ * 1304. Find N Unique Integers Sum up to Zero
+ * https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/
+ * Difficulty: Easy
+ *
+ * Given an integer n, return any array containing
+ * n unique integers such that they add up to 0.
+ */
+
+/**
+ * @param {number} n
+ * @return {number[]}
+ */
+var sumZero = function(n) {
+  const result = n % 2 !== 0 ? [0] : [];
+  while (result.length < n) {
+    result.push(result.length + 1, (result.length + 1) * -1);
+  }
+  return result;
+};