Add solution #1603

Author: JoshCrozier

README.md

@@ -1,4 +1,4 @@
-# 1,412 LeetCode solutions in JavaScript
+# 1,413 LeetCode solutions in JavaScript
 
 [https://leetcodejavascript.com](https://leetcodejavascript.com)
 
@@ -1237,6 +1237,7 @@
 1599|[Maximum Profit of Operating a Centennial Wheel](./solutions/1599-maximum-profit-of-operating-a-centennial-wheel.js)|Medium|
 1600|[Throne Inheritance](./solutions/1600-throne-inheritance.js)|Medium|
 1601|[Maximum Number of Achievable Transfer Requests](./solutions/1601-maximum-number-of-achievable-transfer-requests.js)|Hard|
+1603|[Design Parking System](./solutions/1603-design-parking-system.js)|Easy|
 1657|[Determine if Two Strings Are Close](./solutions/1657-determine-if-two-strings-are-close.js)|Medium|
 1668|[Maximum Repeating Substring](./solutions/1668-maximum-repeating-substring.js)|Easy|
 1669|[Merge In Between Linked Lists](./solutions/1669-merge-in-between-linked-lists.js)|Medium|

solutions/1603-design-parking-system.js

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+/**
+ * 1603. Design Parking System
+ * https://leetcode.com/problems/design-parking-system/
+ * Difficulty: Easy
+ *
+ * Design a parking system for a parking lot. The parking lot has three kinds of parking
+ * spaces: big, medium, and small, with a fixed number of slots for each size.
+ *
+ * Implement the ParkingSystem class:
+ * - ParkingSystem(int big, int medium, int small) Initializes object of the ParkingSystem class.
+ *   The number of slots for each parking space are given as part of the constructor.
+ * - bool addCar(int carType) Checks whether there is a parking space of carType for the car that
+ *   wants to get into the parking lot. carType can be of three kinds: big, medium, or small, which
+ *   are represented by 1, 2, and 3 respectively. A car can only park in a parking space of its
+ *   carType. If there is no space available, return false, else park the car in that size space
+ *   and return true.
+ */
+
+/**
+ * @param {number} big
+ * @param {number} medium
+ * @param {number} small
+ */
+var ParkingSystem = function(big, medium, small) {
+  this.spaces = { 1: big, 2: medium, 3: small };
+};
+
+/**
+ * @param {number} carType
+ * @return {boolean}
+ */
+ParkingSystem.prototype.addCar = function(carType) {
+  if (this.spaces[carType] > 0) {
+    this.spaces[carType]--;
+    return true;
+  }
+  return false;
+};