Create 2149-rearrange-array-elements-by-sign.js

Author: everthis

2149-rearrange-array-elements-by-sign.js

@@ -0,0 +1,17 @@
+/**
+ * @param {number[]} nums
+ * @return {number[]}
+ */
+const rearrangeArray = function(nums) {
+  const pos = [], neg = []
+  for(let e of nums) {
+    if(e >= 0) pos.push(e)
+    else neg.push(e)
+  }
+  const res = []
+  for(let i = 0; i < nums.length; i++) {
+    if(i % 2 === 0) res.push(pos[~~(i / 2)])
+    else res.push(neg[~~(i / 2)])
+  }
+  return res
+};