add Easy_492_Construct_the_Rectangle

Author: zongyanqi

Easy_492_Construct_the_Rectangle.js

@@ -28,6 +28,13 @@
  * @param {number} area
  * @return {number[]}
  */
-var constructRectangle = function(area) {
+var constructRectangle = function (area) {
 
-};
+    var w = Math.floor(Math.sqrt(area));
+    while (area % w != 0) w--;
+    return [area / w, w];
+
+};
+
+console.log(constructRectangle(4));
+console.log(constructRectangle(17));